Remove the remainder of the skia source code from the Chromium repo....

skia/images/fpdfemb.h

Index: skia/images/fpdfemb.h
===================================================================
--- skia/images/fpdfemb.h	(revision 16859)
+++ skia/images/fpdfemb.h	(working copy)
@@ -1,1765 +0,0 @@
-// FPDFEMB.H - Header file for FPDFEMB SDK
-// Copyright (c) 2007-2008 Foxit Software Company, All Right Reserved.
-
-// Date: 2008-04-07
-
-// Embedded platforms have many different aspects from desktop platforms,
-// among them, the followings are most important for PDF processing:
-//
-// 1.	Embedded platforms have only limited memory, and there is no virtual memory.
-//		PDF is a very complicated format, processing PDF may consumes quite
-//		large amount of memory, even for some smaller PDFs. And, in order to 
-//		increase the performance of PDF parsing and rendering, cache memory
-//		is often used. For some big PDFs with many pages, the cache may grow
-//		while user browing through pages, eventually, for some PDFs, the memory
-//		on the device may run out.
-//
-//		FPDFEMB SDK allows graceful out-of-memory (OOM) handling by returning 
-//		OOM error code for all functions that may involve memory allocation. 
-//		When an application detects OOM situation, it can do one of the followings:
-//
-//			a) Give user some prompt and quit the application or close the document;
-//			b) Or better, try to recover from the error. Sometimes OOM can be caused
-//				by ever-growing cache. For example, when user browses a 1000-page 
-//				document, let's say OOM happen at page #300. In this case, the
-//				application might close the whole document (cache will be gone with
-//				it), reopen the document, then go directly to page #300. It's likely
-//				the process will go through this time. This is called "OOM recovery".
-//				If OOM happens again during a recovery, then, it's not possible to finish
-//				the process, the application must quit of close the document.
-//
-// 2.	Embedded platforms has only limited computing power. Since some PDFs
-//		can be very complicated and require a lot of processing to be displayed,
-//		it may take a lot of time for the process to finish. This may cause
-//		some problem with user experience, especially for devices like mobile
-//		phones, when an application may need to be put on hold any time. Therefore, 
-//		it's important to break lengthy process into small steps which can be 
-//		stopped or resumed at any time. We call this kind of process as 
-//		"progressive process".
-//
-//		FPDFEMB SDK allows progressive page parsing and rendering, the most time-
-//		consuming part of PDF processing.
-//
-// IMPORTANT:
-//		FPDFEMB module is not intended to run in multi-threaded environment.
-
-// Components inside FPDFEMB:
-//		* Library Memory Management
-//		* Document Operations
-//		* Page Basic Operations
-//		* Page Parsing
-//		* Page Rendering
-//		* Coordination Conversion
-//		* Text Search
-//		* Text Information
-//		* Device Independant Bitmap
-//		* Custom Font Handler and CJK Support
-//		* Bookmark Information
-//		* Hyperlink Information
-//		* Graphic Output
-
-#ifndef _FPDFEMB_H_
-#define _FPDFEMB_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// Standard return type for many FPDFEMB functions: FPDFERR_SUCCESS for success, otherwise error code
-typedef int FPDFEMB_RESULT;
-
-// Standard boolean type: 0 for false, non-zero for true
-typedef int FPDFEMB_BOOL;
-
-// Unicode character. FPDFEMB uses UTF16LE format for unicode string.
-typedef unsigned short FPDFEMB_WCHAR;
-
-// Error codes
-#define FPDFERR_SUCCESS		0
-#define FPDFERR_MEMORY		1		// Out of memory
-#define FPDFERR_ERROR		2		// Error of any kind, without specific reason
-#define FPDFERR_PASSWORD	3		// Incorrect password
-#define FPDFERR_FORMAT		4		// Not PDF format
-#define FPDFERR_FILE		5		// File access error
-#define FPDFERR_PARAM		6		// Parameter error
-#define FPDFERR_STATUS		7		// Not in correct status
-#define FPDFERR_TOBECONTINUED	8	// To be continued
-#define FPDFERR_NOTFOUND	9		// Search result not found
-
-/********************************************************************************************
-****
-****		Library Memory Management
-****
-********************************************************************************************/
-
-// Structure: FPDFEMB_MEMMGR
-//			Including interfaces implemented by host application, providing memory allocation
-//			facilities. All members are required.
-//			A memory manager structure is required to be valid during the entire period
-//			when an application using FPDFEMB module.
-//
-//			IMPORTANT NOTE: using of this interface is strongly not recommended, because
-//			FPDFEMB now internally use FPDFEMB_MEMMGR_EX interface, which allows more
-//			advanced memory management. This interface is retained for backward compatibility
-//			only, and maybe discontinued in the future.
-//
-struct FPDFEMB_MEMMGR {
-	// Interface: Alloc
-	//		Allocate a memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		size		-	Number of bytes for the memory block.
-	// Return Value:
-	//		The pointer to allocated memory block. NULL if no memory available.
-	// Comments:
-	//		In order to handle OOM situation, application can use longjmp() inside 
-	//		implementation of this function. If underlying memory manager fails to 
-	//		allocate enough memory, then application can use longjmp() to jump to
-	//		OOM handling codes.
-	//
-	void*	(*Alloc)(struct FPDFEMB_MEMMGR* pMgr, unsigned int size);
-
-	// Interface: AllocNL
-	//		Allocate a memory block, without leaving
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		size		-	Number of bytes for the memory block.
-	// Return Value:
-	//		The pointer to allocated memory block. NULL if no memory available.
-	// Comments:
-	//		Implementation MUST return NULL if no memory available, no exception
-	//		or longjmp() can be used.
-	//
-	void*	(*AllocNL)(struct FPDFEMB_MEMMGR* pMgr, unsigned int size);
-
-	// Interfce: Realloc
-	//		Reallocate a memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		pointer		-	An existing memory block, or NULL.
-	//		new_size	-	New size (number of bytes) of the memory block. Can be zero.
-	// Return value:
-	//		The pointer of reallocated memory block, it could be a new block, or just
-	//		the previous block with size modified.
-	// Comments:
-	//		If an existing memory block specified, the data in the memory block will
-	//		be copied to the new block, if reallocated.
-	//
-	//		In order to handle OOM situation, application can use longjmp() inside 
-	//		implementation of this function. If underlying memory manager fails to 
-	//		allocate enough memory, then application can use longjmp() to jump to
-	//		OOM handling codes.
-	//
-	void*	(*Realloc)(struct FPDFEMB_MEMMGR* pMgr, void* pointer, unsigned int new_size);
-
-	// Interface: Free
-	//		Free a memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		pointer		-	An existing memory block.
-	// Return Value:
-	//		None.
-	//
-	void	(*Free)(struct FPDFEMB_MEMMGR* pMgr, void* pointer);
-};
-
-// Function: FPDFEMB_Init
-//			Initialize the FPDFEMB module
-// Parameters:
-//			mem_mgr		-	Pointer to memory manager structure
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			This function will allocate necessary internal data structure for
-//			the whole module to operate.
-FPDFEMB_RESULT FPDFEMB_Init(FPDFEMB_MEMMGR* mem_mgr);
-
-typedef void (*FPDFEMB_FIXED_OOM_HANDLER)(void* memory, int size);
-
-// Function: FPDFEMB_InitFixedMemory
-//			Initialize the FPDFEMB module, providing a fixed memory heap
-// Parameters:
-//			memory		-	Pointer to a pre-allocated memory block
-//			size		-	Number of bytes in the memory block
-//			oom_handler	-	Pointer to a function which will be called when OOM happens. Can be
-//							NULL if application doesn't want to be notified om OOM.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			In many embedded system, memory usage are predetermined. The application
-//			is assigned with fixed size of available memory, then it can pre-allocate
-//			a memory block with maximum size and pass to this function to initialize
-//			FPDFEMB module. In this case, FPDFEMB won't need any additional memory
-//			allocation.
-//
-//			In case the pre-allocated memory has run out, the "oom_proc" callback
-//			function will be called to notify the application that an OOM recovery
-//			procedure needs to be performed.
-//
-FPDFEMB_RESULT FPDFEMB_InitFixedMemory(void* memory, int size, FPDFEMB_FIXED_OOM_HANDLER oom_handler);
-
-// Memory Management Flags
-#define FPDFEMB_NONLEAVE		1
-#define FPDFEMB_MOVABLE			2
-#define FPDFEMB_DISCARDABLE		4
-
-// Structure: FPDFEMB_MEMMGR_EX
-//			This is an extended version of memory manager interface, allowing advanced
-//			memory management, including movable and discardable memory blocks.
-//
-//			Use this interface with FPDFEMB_InitExt function.
-//
-struct FPDFEMB_MEMMGR_EX {
-	// Interface: Alloc
-	//		Allocate a memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		size		-	Number of bytes for the memory block.
-	//		flags		-	A combination of flags defined above.
-	// Return Value:
-	//		The pointer to allocated memory block. NULL if no memory available.
-	//		If FPDFEMB_MOVABLE flag is used, implementation should return a handle
-	//		to the memory block, if it supports movable block allocation.
-	// Comments:
-	//		The implementation should not do any action if no memory available,
-	//		just return NULL. OOM handling can be done in OOM_Handler interface.
-	//
-	void*	(*Alloc)(struct FPDFEMB_MEMMGR_EX* pMgr, unsigned int size, int flags);
-
-	// Interface: OOM_Handler
-	//		OOM (out-of-memory) situation handler
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	// Return Value:
-	//		None.
-	// Comments:
-	//		In order to handle OOM situation, application can use longjmp() inside 
-	//		implementation of this function.
-	//
-	void	(*OOM_Handler)(struct FPDFEMB_MEMMGR_EX* pMgr);
-
-	// Interfce: Realloc
-	//		Reallocate a memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		pointer		-	Pointer to an existing memory block, or handle to a movable
-	//						block. Can not be NULL.
-	//		new_size	-	New size (number of bytes) of the memory block. Can not be zero.
-	// Return value:
-	//		The pointer of reallocated memory block, it could be a new block, or just
-	//		the previous block with size modified.
-	//		If FPDFEMB_MOVABLE flag is used, implementation should return a handle
-	//		to the memory block, if it supports movable block allocation.
-	// Comments:
-	//		If an existing memory block specified, the data in the memory block should
-	//		be copied to the new block, if reallocated.
-	//
-	//		The implementation should not do any action if no memory available,
-	//		just return NULL. OOM handling can be done in OOM_Handler interface.
-	//
-	void*	(*Realloc)(struct FPDFEMB_MEMMGR_EX* pMgr, void* pointer, unsigned int new_size, int flags);
-
-	// Interface: Lock
-	//		Lock a movable memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		handle		-	Handle to movable memory block, returned by Alloc or Realloc.
-	// Return Value:
-	//		The pointer of the memory block. NULL if the block was discarded.
-	// Comments:
-	//		This interface is optional, if implementation doesn't support movable memory
-	//		block, then this interface can be set to NULL.
-	//
-	void*	(*Lock)(struct FPDFEMB_MEMMGR_EX* pMgr, void* handle);
-
-	// Interface: Unlock
-	//		Unlock a locked movable memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		handle		-	Handle to movable memory block, returned by Alloc or Realloc.
-	// Return Value:
-	//		None.
-	// Comments:
-	//		This interface is optional, if implementation doesn't support movable memory
-	//		block, then this interface can be set to NULL.
-	//
-	void	(*Unlock)(struct FPDFEMB_MEMMGR_EX* pMgr, void* handle);
-
-	// Interface: Free
-	//		Free a memory block
-	// Parameters:
-	//		pMgr		-	Pointer to the memory manager.
-	//		pointer		-	Pointer to an existing memory block, or handle to a movable block.
-	// Return Value:
-	//		None.
-	//
-	void	(*Free)(struct FPDFEMB_MEMMGR_EX* pMgr, void* pointer, int flags);
-
-	void*	user;		// A user pointer, used by the application
-};
-
-// Function: FPDFEMB_LoadJbig2Decoder
-// Function: FPDFEMB_LoadJpeg2000Decoder
-//			Enable JBIG2 or JPEG2000 image decoder 
-// Parameters:
-//			None.
-// Return Value:
-//			None.
-// Comments:
-//			If you want to display JBIG2 or JPEG2000 encoded images, you need to call 
-//			these functions after FPDFEMB initialized.
-//
-//			Calling these functions will increase code size by about 200K-400K bytes.
-//			Also JPEG2000 decoder may not be available on some platforms.
-//
-void FPDFEMB_LoadJbig2Decoder();
-void FPDFEMB_LoadJpeg2000Decoder();
-
-// Function: FPDFEMB_InitEx
-//			Initialize the FPDFEMB module with the extended memory manager
-// Parameters:
-//			mem_mgr		-	Pointer to memory manager structure
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			This function will allocate necessary internal data structure for
-//			the whole module to operate.
-FPDFEMB_RESULT FPDFEMB_InitEx(FPDFEMB_MEMMGR_EX* mem_mgr);
-
-// Function: FPDFEMB_Exit
-//			Stop using FPDFEMB module and release all resources
-// Parameters:
-//			None.
-// Return Value:
-//			None.
-// Comments:
-//			All loaded documents and pages will become invalid after this call.
-//
-//			This function is useful for OOM recovery: when your application hits
-//			an OOM situation, calling this function will clear all memory allocated
-//			by FPDFEMB module, then you can call one of the initialization functions,
-//			reopen the document and recovery from OOM.
-//
-void FPDFEMB_Exit();
-
-// Function: FPDFEMB_AllocMemory
-//			Allocate memory
-// Parameters:
-//			size		-	Number of bytes
-// Return Value:
-//			The allocated buffer pointer. NULL for out of memory.
-//
-void* FPDFEMB_AllocMemory(unsigned int size);
-
-// Function: FPDFEMB_FreeMemory
-//			Free allocated memory
-// Parameters:
-//			pointer		-	Pointer returned by FPDFEMB_AllocMemory
-// Return Value:
-//			None.
-//
-void FPDFEMB_FreeMemory(void* pointer);
-
-// Function: FPDFEMB_FreeCaches
-//			Free all expendable caches used by FPDFEMB in order to save memory
-// Parameters:
-//			None.
-// Return Value:
-//			None.
-// Comments:
-//			When an application memory manager runs out of memory, before an OOM situation 
-//			is raised, the application can try this 
-//
-void FPDFEMB_FreeCaches();
-
-/********************************************************************************************
-****
-****		Document Operations
-****
-********************************************************************************************/
-
-// Structure: FPDFEMB_FILE_ACCESS
-//		Describe the way to access a file (readonly).
-struct FPDFEMB_FILE_ACCESS {
-	// Inteface: GetSize
-	//		Get total size of the file
-	// Parameters:
-	//		file		-	Pointer to this file access structure
-	// Return Value:
-	//		File size, in bytes. Implementation can return 0 for any error.
-	// 
-	unsigned int	(*GetSize)(struct FPDFEMB_FILE_ACCESS* file);
-
-	// Interface: ReadBlock
-	//		Read a data block from the file
-	// Parameters:
-	//		file		-	Pointer to this file access structure
-	//		buffer		-	Pointer to a buffer receiving read data
-	//		offset		-	Byte offset for the block, from beginning of the file
-	//		size		-	Number of bytes for the block.
-	// Return Value:
-	//		Error code, or FPDFERR_SUCCESS for success.
-	//
-	FPDFEMB_RESULT	(*ReadBlock)(struct FPDFEMB_FILE_ACCESS* file, void* buffer, 
-									unsigned int offset, unsigned int size);
-
-	void*		user;		// A user pointer, used by the application
-};
-
-// Structure: FPDFEMB_PAUSE
-//			An interface for pausing a progressive process.
-struct FPDFEMB_PAUSE {
-	// Interface: NeedPauseNow
-	//		Check if we need to pause a progressive proccess now
-	// Parameters:
-	//		pause		-	Pointer to the pause structure
-	// Return Value:
-	//		Non-zero for pause now, 0 for continue.
-	// Comments:
-	//		Typically implementation of this interface compares the current system tick
-	//		with the previous one, if the time elapsed exceeds certain threshold, then
-	//		the implementation returns TRUE, indicating a pause is needed.
-	//
-	FPDFEMB_BOOL (*NeedPauseNow)(struct FPDFEMB_PAUSE* pause);
-
-	void*		user;		// A user pointer, used by the application
-};
-
-typedef void* FPDFEMB_DOCUMENT;
-
-// Function: FPDFEMB_StartLoadDocument
-//			Start loading a PDF document
-// Parameters:
-//			file		-	Pointer to file access structure.
-//							This structure must be kept valid as long as the document is open.
-//			password	-	Pointer to a zero-terminated byte string, for the password.
-//							Or NULL for no password.
-//			document	-	Receiving the document handle
-//			pause		-	A callback mechanism allowing the document loading process
-//							to be paused before it's finished. This can be NULL if you
-//							don't want to pause.
-// Return Value:
-//			FPDFERR_SUCCESS: document successfully loaded.
-//			FPDFERR_TOBECONTINUED: The document loading can't be finished now.
-//					See comments below.
-//			FPDFERR_PASSWORD: incorrect password.
-//			FPDFERR_FORMAT: not a PDF or corrupted PDF.
-//			FPDFERR_FILE: file access error.
-//			FPDFERR_MEMORY: out of memory.
-// Comments:
-//			Document loading is a progressive process. It might take a long time to
-//			load a document, especiall when a file is corrupted, FPDFEMB will try to
-//			recover the document contents by scanning the whole file. If "pause" parameter
-//			is provided, this function may return FPDFERR_TOBECONTINUED any time during
-//			the document loading.
-//
-//			When FPDFERR_TOBECONTINUED is returned, the "document" parameter will
-//			still receive a valid document handle, however, no further operations can
-//			be performed on the document, except the "FPDFEMB_ContineLoadDocument" function
-//			call, which resume the document loading.
-//
-FPDFEMB_RESULT FPDFEMB_StartLoadDocument(FPDFEMB_FILE_ACCESS* file, const char* password, 
-									FPDFEMB_DOCUMENT* document, FPDFEMB_PAUSE* pause);
-
-// Function: FPDFEMB_ContinueLoadDocument
-//			Continue loading a PDF document
-// Parameters:
-//			document	-	Document handle returned by FPDFEMB_StartLoadDocument function
-//			pause		-	A callback mechanism allowing the document loading process
-//							to be paused before it's finished. This can be NULL if you
-//							don't want to pause.
-// Return Value:
-//			FPDFERR_SUCCESS: document successfully loaded.
-//			FPDFERR_TOBECONTINUED: The document loading can't be finished now.
-//					Further call to this function is needed.
-//			FPDFERR_PASSWORD: incorrect password.
-//			FPDFERR_FORMAT: not a PDF or corrupted PDF.
-//			FPDFERR_FILE: file access error.
-//			FPDFERR_MEMORY: out of memory.
-//			FPDFERR_STATUS: document already loaded.
-//			FPDFERR_PARAM: invalid parameter (like NULL document handle)
-//
-FPDFEMB_RESULT FPDFEMB_ContinueLoadDocument(FPDFEMB_DOCUMENT document, FPDFEMB_PAUSE* pause);
-
-// Function: FPDFEMB_CloseDocument
-//			Close a PDF document and free all associated resources
-// Parameters:
-//			document	-	Document handle
-// Return Value:
-//			Error code. FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_CloseDocument(FPDFEMB_DOCUMENT document);
-
-// Function: Get page count
-//			Get number of pages in the document
-// Parameters:
-//			document	-	Document handle
-// Return Value:
-//			Number of pages.
-//
-int FPDFEMB_GetPageCount(FPDFEMB_DOCUMENT document);
-
-// Function: FPDFEMB_SetFileBufferSize
-//			Set size of internal buffer used to read from source file.
-// Parameters:
-//			size		-	Number of bytes
-// Return Value:
-//			None.
-// Comments:
-//			Currently FPDFEMB uses 512 bytes as default buffer size. The new buffer size 
-//			takes effect next time you call FPDFEMB_StartLoadDocument.
-//
-void FPDFEMB_SetFileBufferSize(int size);
-
-/********************************************************************************************
-****
-****		Page Basic Operations
-****
-********************************************************************************************/
-
-typedef void* FPDFEMB_PAGE;
-
-// Function: FPDFEMB_LoadPage
-//			Load a page
-// Parameters:
-//			document	-	Document handle
-//			index		-	Page index, starting from zero
-//			page		-	Receiving the loaded page handler
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_LoadPage(FPDFEMB_DOCUMENT document, int index, FPDFEMB_PAGE* page);
-
-// Function: FPDFEMB_ClosePage
-//			Close a page and release all related resources
-// Parameters:
-//			page		-	Page handle
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_ClosePage(FPDFEMB_PAGE page);
-
-// Function: FPDFEMB_GetPageSize
-//			Get size of a page
-// Parameters:
-//			page		-	Page handle
-//			width		-	Receiving page width, in hundredth of points
-//			height		-	Receiving page height, in hundredth of points
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-//
-FPDFEMB_RESULT FPDFEMB_GetPageSize(FPDFEMB_PAGE page, int* width, int* height);
-
-// Structure: FPDFEMB_RECT
-//			Rectangle area in device or page coordination system
-//
-struct FPDFEMB_RECT
-{
-	// For device system, coordinations are measured in pixels;
-	// For page system, coordinations are measured in hundredth of points.
-	int		left;
-	int		top;
-	int		right;
-	int		bottom;
-};
-
-// Function: FPDFEMB_GetPageBBox
-//			Get displayable area (bounding box) of a page
-// Parameters:
-//			page		-	Page handle
-//			rect		-	Pointer to a structure receiving the rectangle
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-//
-FPDFEMB_RESULT FPDFEMB_GetPageBBox(FPDFEMB_PAGE page, FPDFEMB_RECT* rect);
-
-/********************************************************************************************
-****
-****		Page Parsing
-****
-********************************************************************************************/
-
-// Function: FPDFEMB_StartParse
-//			Start parsing a page, so it can get rendered or searched
-// Parameters:
-//			page		-	Page handle
-//			text_only	-	flag for parsing texts only (used for searching)
-//			pause		-	A structure that can pause the parsing process.
-//							Or NULL if you don't want to pause the process.
-// Return Value:
-//			FPDFERR_SUCCESS: parsing successfully finished;
-//			FPDFERR_TOBECONTINUED: parsing started successfully, but not finished;
-//			FPDFERR_STATUS: page already parsed, or parsing already started. 
-//			Other return value: error code.
-// Comments:
-//			Parsing is a progressive process. This function starts the parsing process,
-//			and may return before parsing is finished, if a pause structure is provided.
-//
-//			Application should call FPDFEMB_ContinueParse repeatedly to finish the parsing
-//			when return value is FPDFERR_TOBECONTINUED.
-//
-//			There can be only one parsing procedure active for a page, and if a page
-//			has already been parsed, you can't start a parsing again.
-//
-FPDFEMB_RESULT FPDFEMB_StartParse(FPDFEMB_PAGE page, FPDFEMB_BOOL text_only, 
-												FPDFEMB_PAUSE* pause);
-
-// Function: FPDFEMB_ContinueParse
-//			Continue the page parsing
-// Parameters:
-//			page		-	Page handle
-//			pause		-	A structure that can pause the parsing process.
-//							Or NULL if you don't want to pause the process.
-// Return Value:
-//			FPDFERR_SUCCESS: parsing successfully finished;
-//			FPDFERR_TOBECONTINUED: parsing performed successfully, but not finished;
-//			FPDFERR_STATUS: page already parsed (or parsing not started). 
-//			Other return value: error code.
-// Comments:
-//			FPDFEMB_StartParse should be called before on the page.
-//
-//			Application should call FPDFEMB_ContinueParse repeatedly to finish the parsing
-//			when return value is FPDFERR_TOBECONTINUED.
-//
-FPDFEMB_RESULT FPDFEMB_ContinueParse(FPDFEMB_PAGE page, FPDFEMB_PAUSE* pause);
-
-// Function: FPDFEMB_GetParseProgress
-//			Get an estimated parsing progress in percentage
-// Parameters:
-//			page		-	Page handle
-// Return Value:
-//			An integer between 0 and 100 (inclusive) indicating the parsing progress.
-//			The result is just a rough estimation.
-//
-int FPDFEMB_GetParseProgress(FPDFEMB_PAGE page);
-
-/********************************************************************************************
-****
-****		Page Rendering
-****
-********************************************************************************************/
-
-typedef void* FPDFEMB_BITMAP;
-
-// Function: FPDFEMB_StartQuickDraw
-//			Start drawing a quick preview of a page
-// Parameters:
-//			dib			-	DIB handle, as the rendering device
-//			page		-	Page handle. The page has to be parsed first.
-//			start_x		-	Left pixel position of the display area in the device coordination
-//			start_y		-	Top pixel position of the display area in the device coordination
-//			size_x		-	Horizontal size (in pixels) for displaying the page
-//			size_y		-	Vertical size (in pixels) for displaying the page
-//			rotate		-	Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise),
-//								2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise).
-//			flags		-	Reserved, must be zero.
-//			pause		-	Pointer to a structure that can pause the rendering process.
-//							Can be NULL if no pausing is needed.
-// Return Value:
-//			FPDFERR_SUCCESS: quickdraw successly finished;
-//			FPDFERR_TOBECONTINUED: quickdraw started successfully, but not finished.
-//							FPDFEMB_ContinueQuickDraw needs to be called to finish the quickdraw;
-//			FPDFERR_STATUS: quickdraw already in progress, or page not parsed;
-//			Other return value: error code.
-// Comments:
-//			It's often useful to present user a quick preview of a page, right after the
-//			page is parsed. This preview renders only a limited set of easy features in the
-//			page, so it'll be rather quick to finish this process.
-//
-FPDFEMB_RESULT FPDFEMB_StartQuickDraw(FPDFEMB_BITMAP dib, FPDFEMB_PAGE page,
-							int start_x, int start_y, int size_x, int size_y, int rotate,
-							int flags, FPDFEMB_PAUSE* pause);
-
-// Function: FPDFEMB_ContinueQuickDraw
-//			Continue a quick draw processing
-// Parameters:
-//			page		-	Page handle. The page has to be parsed first.
-//			pause		-	Pointer to a structure that can pause the rendering process.
-//							Can be NULL if no pausing is needed.
-// Return Value:
-//			FPDFERR_SUCCESS: quickdraw successly finished;
-//			FPDFERR_TOBECONTINUED: quickdraw started successfully, but not finished.
-//							more calls to this function needed to finish the quickdraw;
-//			FPDFERR_STATUS: quickdraw not started yet; 
-//			Other return value: error code.
-//
-FPDFEMB_RESULT FPDFEMB_ContinueQuickDraw(FPDFEMB_PAGE page, FPDFEMB_PAUSE* pause);
-
-#define FPDFEMB_ANNOT			0x01		// Set if annotations are to be rendered
-#define FPDFEMB_LCD_TEXT		0x02		// Set if using text rendering optimized for LCD display
-#define FPDFEMB_BGR_STRIPE		0x04		// Set if the device is using BGR LCD stripe
-
-// Function: FPDFEMB_StartRender
-//			Start rendering of a page.
-// Parameter:
-//			dib			-	DIB handle, as the rendering device
-//			page		-	Page handle. The page has to be parsed first.
-//			start_x		-	Left pixel position of the display area in the device coordination
-//			start_y		-	Top pixel position of the display area in the device coordination
-//			size_x		-	Horizontal size (in pixels) for displaying the page
-//			size_y		-	Vertical size (in pixels) for displaying the page
-//			rotate		-	Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise),
-//								2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise).
-//			flags		-	0 for normal display, or combination of flags defined above
-//			clip		-	Pointer to clip rectangle (in DIB device coordinations),
-//							or NULL if no clipping needed.
-//			pause		-	Pointer to a structure that can pause the rendering process.
-//							Can be NULL if no pausing is needed.
-// Return Value:
-//			FPDFERR_SUCCESS: rendering successfully finished;
-//			FPDFERR_TOBECONTINUED: rendering started successfully, but not finished;
-//			Other return value: error code.
-// Comments:
-//			Rendering is a progressive process. This function starts the rendering process,
-//			and may return before rendering is finished, if a pause structure is provided.
-//
-//			Application should call FPDFEMB_ContinueRender repeatedly to finish the rendering 
-//			when return value is FPDFERR_TOBECONTINUED.
-//
-//			There can be only one rendering procedure for a page at any time. And rendering
-//			can be started over and over again for the same page. If a page rendering is already
-//			active, starting another one will cancel the previous rendering.
-//
-//			Rendering of a page doesn't draw the page background, therefore, you usually need
-//			to draw the background in the DIB yourself.
-//
-FPDFEMB_RESULT FPDFEMB_StartRender(FPDFEMB_BITMAP dib, FPDFEMB_PAGE page,
-						int start_x, int start_y, int size_x, int size_y, int rotate, int flags,
-						FPDFEMB_RECT* clip, FPDFEMB_PAUSE* pause);
-
-// Function: FPDFEMB_ContinueRender
-//			Continue the page rendering
-// Parameters:
-//			page		-	Page handle
-//			pause		-	Pointer to a structure that can pause the rendering process.
-//							Can be NULL if no pausing is needed.
-// Return Value:
-//			FPDFERR_SUCCESS: rendering successfully finished.
-//			FPDFERR_TOBECONTINUED: rendering needs to be continued;
-//			Other return value: error code.
-// Comments:
-//			This function may return any time when the pause interface indicates 
-//			a pause is needed. Application can call FPDFEMB_ContinueRender any number
-//			of times, until FPDFERR_TOBECONTINUED is not returned.
-//
-FPDFEMB_RESULT FPDFEMB_ContinueRender(FPDFEMB_PAGE page, FPDFEMB_PAUSE* pause);
-
-// Function: FPDFEMB_GetRenderProgress
-//			Get an estimated rendering progress in percentage
-// Parameters:
-//			page		-	Page handle
-// Return Value:
-//			An integer between 0 and 100 (inclusive) indicating the rendering progress.
-//			The result is just a rough estimation.
-//			If the rendering just finished, this function will return 0.
-//
-int FPDFEMB_GetRenderProgress(FPDFEMB_PAGE page);
-
-// Function: FPDFEMB_SetHalftoneLimit
-//			Set pixel count limit for using halftone when display image
-// Parameter:
-//			limit		-	Number of pixels for the limit
-// Return Value:
-//			None.
-// Comments:
-//			By default, FPDFEMB displays all bitmaps using downsamping, which means
-//			if the image is shrinked onto screen, only part of pixels will be picked
-//			and displayed. This saves a lot of calculation, especially for big images
-//			with millions of pixels. However the display quality can be bad. In order to
-//			reach a balance between performance and quality, application can use this
-//			function to set a limit, if number of pixels in an image is more than this
-//			limit, then FPDFEMB will use downsampling for quick drawing, otherwise, if
-//			the image has less pixels, FPDFEMB will use halftoning for better quality.
-//
-void FPDFEMB_SetHalftoneLimit(int limit);
-
-/********************************************************************************************
-****
-****		Coordination Conversion
-****
-********************************************************************************************/
-
-// Structure: FPDFEMB_POINT
-//			A point in device or page coordination system
-//
-struct FPDFEMB_POINT
-{
-	// For device system, coordinations are measured in pixels;
-	// For page system, coordinations are measured hundredth of points.
-	int		x;
-	int		y;
-};
-
-// Function: FPDFEMB_DeviceToPagePoint, FPDFEMB_DeviceToPageRect
-//			Convert the device coordinations of a point or a rectangle to page coordinations.
-// Parameters:
-//			page		-	Handle to the page. Returned by FPDFEMB_LoadPage function.
-//			start_x		-	Left pixel position of the display area in the device coordination
-//			start_y		-	Top pixel position of the display area in the device coordination
-//			size_x		-	Horizontal size (in pixels) for displaying the page
-//			size_y		-	Vertical size (in pixels) for displaying the page
-//			rotate		-	Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise),
-//								2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise).
-//			point		-	A point structure with device coordinations upon the call,
-//							also receiving the result page coordinations.
-//			rect		-	A rectangle structure with device coordinations upon the call,
-//							also receiving the result page coordinations.
-// Return value:
-//			None.
-// Comments:
-//			The page coordination system has its origin at left-bottom corner of the page, 
-//			with X axis goes along the bottom side to the right, and Y axis goes along the 
-//			left side upward. No matter how you zoom, scroll, or rotate a page, a particular
-//			element (like text or image) on the page should always have the same coordination 
-//			values in the page coordination system. 
-//
-//			The device coordination system is device dependant. For bitmap device, its origin 
-//			is at left-top corner of the window. You must make sure the start_x, start_y, size_x, 
-//			size_y and rotate parameters have exactly same values as you used in 
-//			FPDFEMB_StartRender() function call.
-//
-//			For rectangle conversion, the result rectangle is always "normalized", meaning for
-//			page coordinations, left is always smaller than right, bottom is smaller than top.
-//
-void FPDFEMB_DeviceToPagePoint(FPDFEMB_PAGE page, 
-						int start_x, int start_y, int size_x, int size_y, int rotate, 
-						FPDFEMB_POINT* point);
-
-void FPDFEMB_DeviceToPageRect(FPDFEMB_PAGE page, 
-						int start_x, int start_y, int size_x, int size_y, int rotate, 
-						FPDFEMB_RECT* rect);
-
-// Function: FPDFEMB_PageToDevicePoint, FPDFEMB_PageToDeviceRect
-//			Convert the page coordinations of a point or a rectangle to device coordinations.
-// Parameters:
-//			page		-	Handle to the page. Returned by FPDFEMB_LoadPage function.
-//			start_x		-	Left pixel position of the display area in the device coordination
-//			start_y		-	Top pixel position of the display area in the device coordination
-//			size_x		-	Horizontal size (in pixels) for displaying the page
-//			size_y		-	Vertical size (in pixels) for displaying the page
-//			rotate		-	Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise),
-//								2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise).
-//			point		-	A point structure with page coordinations upon the call,
-//							also receiving the result device coordinations.
-//			rect		-	A rectangle structure with page coordinations upon the call,
-//							also receiving the result device coordinations.
-// Return value:
-//			None
-// Comments:
-//			For rectangle conversion, the result rectangle is always "normalized", meaning for
-//			device coordinations, left is always smaller than right, top is smaller than bottom.
-//
-void FPDFEMB_PageToDevicePoint(FPDFEMB_PAGE page, 
-						int start_x, int start_y, int size_x, int size_y, int rotate, 
-						FPDFEMB_POINT* point);
-
-void FPDFEMB_PageToDeviceRect(FPDFEMB_PAGE page, 
-						int start_x, int start_y, int size_x, int size_y, int rotate, 
-						FPDFEMB_RECT* rect);
-
-/********************************************************************************************
-****
-****		Text Search
-****
-********************************************************************************************/
-
-// Search flags for FPDFEMB_FindFirst function
-#define FPDFEMB_MATCHCASE		1		// whether matching case
-#define FPDFEMB_MATCHWHOLEWORD	2		// whether matching whole word
-#define FPDFEMB_CONSECUTIVE		4		// whether matching consecutively (for example, "CC" will
-										// match twice in "CCC").
-
-// Function: FPDFEMB_FindFirst
-//			Find first occurance of a pattern string in a page
-// Parameters:
-//			page		-	Page handle.
-//			pattern		-	A zero-terminated unicode string to be found. 
-//			from_last	-	Whether we start from the end of page
-//			flags		-	Search flags, see above defined constants
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//			Is not found, FPDFERR_NOTFOUND is returned.
-// Comments:
-//			A page must be parsed first before it can be searched.
-//			There can be only one search in progress for a page. A new search will 
-//			cancel the previous one.
-//
-//			IMPORTANT: this function is now obsolete and kept for back compatibility
-//			only, please use FPDFEMB_FindFrom function below.
-//
-FPDFEMB_RESULT FPDFEMB_FindFirst(FPDFEMB_PAGE page, const FPDFEMB_WCHAR* pattern, 
-								 FPDFEMB_BOOL from_last, unsigned int flags);
-
-// Function: FPDFEMB_FindFrom
-//			Find first occurance of a pattern string in a page, from a particular position
-// Parameters:
-//			page		-	Page handle.
-//			pattern		-	A zero-terminated unicode string to be found. 
-//			pos			-	The position, returned from FPDFEMB_GetSearchPos.
-//							Or 0 from the beginning of page, -1 from the end of page.
-//			flags		-	Search flags, see above defined constants
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//			Is not found, FPDFERR_NOTFOUND is returned.
-// Comments:
-//			A page must be parsed first before it can be searched.
-//			There can be only one search in progress for a page. A new search will 
-//			cancel the previous one.
-//
-FPDFEMB_RESULT FPDFEMB_FindFrom(FPDFEMB_PAGE page, const FPDFEMB_WCHAR* pattern, 
-								 int pos, unsigned int flags);
-
-// Function: FPDFEMB_FindNext
-//			Find next occurance of a search
-// Parameters:
-//			page		-	Page handle. 
-//							FPDFEMB_FindFirst must be called for this page first.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//			Is not found, FPDFERR_NOTFOUND is returned.
-//
-FPDFEMB_RESULT FPDFEMB_FindNext(FPDFEMB_PAGE page);
-
-// Function: FPDFEMB_FindPrev
-//			Find previous occurance of a search
-// Parameters:
-//			page		-	Page handle.
-//							FPDFEMB_FindFirst must be called for this page first.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//			Is not found, FPDFERR_NOTFOUND is returned.
-//
-FPDFEMB_RESULT FPDFEMB_FindPrev(FPDFEMB_PAGE page);
-
-// Function: FPDFEMB_CountFoundRects
-//			Get number of rectangles for last found result
-// Parameters:
-//			page		-	Page handle.
-// Return Value:
-//			Number of rectangles for last found result. 0 for not found or failure.
-//
-int FPDFEMB_CountFoundRects(FPDFEMB_PAGE page);
-
-// Function: FPDFEMB_GetFoundRect
-//			Get a particular found rectangle
-// Parameters:
-//			page		-	Page handle.
-//			index		-	Zero-based index for the rectangle.
-//			rect		-	Receiving the result rectangle, in hundredth of points
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			Application should always call FPDFEMB_CountFoundRects first to get
-//			number of rectangles, then use this function to get each rectangle.
-//
-//			The returned rectangle uses page coordination system.
-//
-FPDFEMB_RESULT FPDFEMB_GetFoundRect(FPDFEMB_PAGE page, int index, FPDFEMB_RECT* rect);
-
-// Function: FPDFEMB_GetSearchPos
-//			Return position of current search result
-// Parameters:
-//			page		-	Page handle.
-// Return Value:
-//			Zero based character index for the current search result. -1 if not found.
-//
-int FPDFEMB_GetSearchPos(FPDFEMB_PAGE page);
-
-// Function: FPDFEMB_QuickSearch
-//			Search a pattern in a page quickly, without the page to be parsed
-// Parameters:
-//			document	-	Document handle returned by FPDFEMB_StartLoadDocument function
-//			page_index	-	Zero-based index of the page
-//			pattern		-	A zero-terminated unicode string to be found. 
-//			case_sensitive	-	Non-zero for case-sensitive searching, zero for case-insensitive
-// Return Value:
-//			FPDFERR_SUCCESS if pattern found, FPDFERR_NOTFOUND if pattern not found.
-//			Otherwise error code is returned.
-// Comments:
-//			This function does a rough and quick search in a page, before the page is loaded. 
-//			The quick search will not generate an exact result saying where the pattern is
-//			found, and, it might be possible if a quick search result is "pattern found", and
-//			a real search for the same pattern, in the same page, will result in "not found".
-//
-//			However, if quick search doesn't find a pattern in a page, then we can be sure the
-//			pattern won't be found in this page when we do a real search. So, this function is 
-//			very useful when we search in a multiple-page document, and we want to quickly skip
-//			those pages in which the pattern can't possibly be found.
-//
-FPDFEMB_RESULT FPDFEMB_QuickSearch(FPDFEMB_DOCUMENT document, int page_index, 
-								   const FPDFEMB_WCHAR* pattern, int case_sensitive);
-
-/********************************************************************************************
-****
-****		Text Information
-****
-********************************************************************************************/
-
-// Function: FPDFEMB_GetCharCount
-//			Get number of characters in the page
-// Parameters:
-//			page		-	Page handle
-//			count		-	Receiving number of characters
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_GetCharCount(FPDFEMB_PAGE page, int* count);
-
-// Structure: FPDFEMB_CHAR_INFO
-//			Character information.
-struct FPDFEMB_CHAR_INFO {
-	int		unicode;		// Unicode for the character. 0 if not available.
-							// Space and new line charcters (U+0020 and U+000A) may be generated
-							// according to the text formatting.
-	FPDFEMB_POINT	origin;	// X/Y position for the character origin, in hundredth of points
-	FPDFEMB_RECT	bbox;	// Bounding box of the character, in hundredth of points
-							// Maybe an empty box (left == right or top == bottom).
-};
-
-// Function: FPDFEMB_GetCharInfo
-//			Get character information
-// Parameters:
-//			page		-	Page handle
-//			index		-	Character index, starting from zero
-//			char_info	-	Receiving the character info
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			Application must call FPDFEMB_GetCharCount first before it can call this function
-//			for any particular characters.
-//			
-FPDFEMB_RESULT FPDFEMB_GetCharInfo(FPDFEMB_PAGE page, int index, FPDFEMB_CHAR_INFO* char_info);
-
-// Function: FPDFEMB_GetCharIndexAtPos()
-//			Get index of character nearest to a certain position on the page
-// Parameters:
-//			page		-	Page handle
-//			x			-	X position in PDF page coordination system
-//			y			-	Y position in PDF page coordination system
-//			index		-	Pointer to an integer receiving zero-based character index.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			This function finds the character that's nearest to the particular page position.
-//			If there is no character, the output index will be -1.
-//			
-FPDFEMB_RESULT FPDFEMB_GetCharIndexAtPos(FPDFEMB_PAGE page, double x, double y, int* index);
-
-/********************************************************************************************
-****
-****		Device Independant Bitmap
-****
-********************************************************************************************/
-
-#define FPDFDIB_BGR		1	// 3 bytes per pixel, byte order: Blue, Green, Red
-#define FPDFDIB_BGRx	2	// 4 bytes per pixel, byte order: Blue, Green, Red, not used
-#define FPDFDIB_BGRA	3	// 4 bytes per pixel, byte order: Blue, Green, Red, Alpha
-#define FPDFDIB_GRAY	4	// 1 byte per pixel (grayscale)
-
-// Function: FPDFEMB_CreateDIB
-//			Create a DIB (Device Independant Bitmap)
-// Parameters:
-//			width		-	Width pixels;
-//			height		-	Height pixels;
-//			format		-	Format type. See FPDFDIB_xxx constants
-//			buffer		-	External buffer provided for the DIB,
-//							or NULL if new buffer is to be allocated.
-//			stride		-	Number of bytes for each scan line, for external buffer only.
-//							If not specified, 4-byte alignment assumed.
-//			dib			-	Receiving the created DIB handle
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			If "buffer" parameter is not NULL, then the provided buffer must conform
-//			to standard DIB format (see comments of FPDFEMB_GetDIBData function below).
-//
-//			This function doesn't initialize the pixels inside the DIB buffer. So if you
-//			want to use the DIB to display a PDF page, you usually need to initialize
-//			the DIB to white background by youself.
-//
-FPDFEMB_RESULT FPDFEMB_CreateDIB(int width, int height, int format, 
-									   void* buffer, int stride, FPDFEMB_BITMAP* dib);
-
-// Function: FPDFEMB_DestroyDIB
-//			Destroy a DIB
-// Parameters:
-//			dib			-	DIB handle
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			If external buffer is used (specified in "buffer" parameter when calling
-//			FPDFEMB_CreateDIB), the buffer will not be destroyed.
-//
-FPDFEMB_RESULT FPDFEMB_DestroyDIB(FPDFEMB_BITMAP dib);
-
-// Function: FPDFEMB_GetDIBWidth
-//			Get width (in pixels) of a DIB
-// Parameters:
-//			dib			-	DIB handle
-// Return Value:
-//			DIB width in pixels.
-//
-int FPDFEMB_GetDIBWidth(FPDFEMB_BITMAP dib);
-
-// Function: FPDFEMB_GetDIBHeight
-//			Get height (in pixels) of a DIB
-// Parameters:
-//			dib			-	DIB handle
-// Return Value:
-//			DIB height in pixels.
-//
-int FPDFEMB_GetDIBHeight(FPDFEMB_BITMAP dib);
-
-// Function: FPDFEMB_GetDIBData
-//			Get data pointer to a DIB
-// Parameters:
-//			dib			-	DIB handle
-// Return Value:
-//			Pointer to the DIB data.
-// Comments:
-//			DIB data are organized in scanlines, from top down.
-//
-void* FPDFEMB_GetDIBData(FPDFEMB_BITMAP dib);
-
-// Function: FPDFEMB_GetDIBStride
-//			Get scan line stride of a DIB
-// Parameters:
-//			dib			-	DIB handle
-// Return Value:
-//			Number of bytes occupied by a scanline
-//
-int FPDFEMB_GetDIBStride(FPDFEMB_BITMAP dib);
-
-// Function: FPDFEMB_GetRotatedDIB
-//			Swap X/Y dimensions of a DIB to generate a rotated new DIB
-// Parameters:
-//			dib			-	DIB handle
-//			flip_x		-	Whether flip pixels on the destination X dimension (left/right)
-//			flip_y		-	Whether flip pixels on the destination Y dimension (up/down)
-//			result_dib	-	Receiving the result DIB handle
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-//
-FPDFEMB_RESULT FPDFEMB_GetRotatedDIB(FPDFEMB_BITMAP dib, 
-									 FPDFEMB_BOOL bFlipX, FPDFEMB_BOOL bFlipY,
-									 FPDFEMB_BITMAP* result_dib);
-
-// Function: FPDFEMB_StretchDIB
-//			Stretch a source DIB into another destination DIB
-// Parameters:
-//			dest_dib	-	The destination DIB handle
-//			dest_left	-	Left position in the destination DIB
-//			dest_top	-	Top position in the destination DIB
-//			dest_width	-	Destination width, in pixels. Can be negative for horizontal flipping
-//			dest_height	-	Destination height, in pixels. Can be negative for vertical flipping
-//			clip		-	Destination clipping rectangle, or NULL for no clipping.
-//							The coordinations are measured in destination bitmap.
-//			src_dib		-	Source DIB handle.
-//			interpol	-	Whether we use interpolation to improve the result quality
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-//
-FPDFEMB_RESULT FPDFEMB_StretchDIB(FPDFEMB_BITMAP dest_dib, int dest_left, int dest_top,
-								  int dest_width, int dest_height, FPDFEMB_RECT* clip_rect, 
-								  FPDFEMB_BITMAP src_dib, FPDFEMB_BOOL interpol);
-
-// Function: FPDFEMB_TransformDIB
-//			Transform a source DIB into another destination DIB
-// Parameters:
-//			dest_dib	-	The destination DIB handle
-//			clip		-	Destination clipping rectangle, or NULL for no clipping.
-//							The coordinations are measured in destination bitmap.
-//			src_dib		-	Source DIB handle.
-//			x			-	X coordination of the dest origin
-//			y			-	Y coordination of the dest origin
-//			xx			-	X distance of the dest X vector
-//			yx			-	Y distance of the dest X vector
-//			xy			-	X distance of the dest Y vector
-//			yy			-	Y distance of the dest Y vector
-//			interpol	-	Whether we use interpolation to improve the result quality
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			All coordinations and distances are measured in destination bitmap system.
-//
-//			This function places the bottom-left pixel of the image at the destination
-//			origin, then the bottom sideline along the destination X vector, and left 
-//			sideline along the destination Y vector.
-//			
-FPDFEMB_RESULT FPDFEMB_TransformDIB(FPDFEMB_BITMAP dest_dib, FPDFEMB_RECT* clip_rect, 
-								  FPDFEMB_BITMAP src_dib, int x, int y, int xx, int yx,
-								  int xy, int yy, FPDFEMB_BOOL interpol);
-
-/********************************************************************************************
-****
-****		Custom Font Handler and CJK Support
-****
-********************************************************************************************/
-
-// FPDFEMB comes with standard fonts for Latin characters. If your device is targeted to
-// Eastern Asian markets, then system fonts must be provided and registered with FPDFEMB.
-// Depending on your device configuration, those system fonts might be in TrueType or Type1
-// format, or some other non-standard compact format. For the first case, you should register
-// a font mapper so FPDFEMB can pick the right font file, and for the second case, you
-// should register a glyph provider so FPDFEMB can get glyph bitmap for each character.
-
-#define FPDFEMB_CHARSET_DEFAULT		0
-#define FPDFEMB_CHARSET_GB			936
-#define FPDFEMB_CHARSET_BIG5		950
-#define FPDFEMB_CHARSET_JIS			932
-#define FPDFEMB_CHARSET_KOREA		949
-#define FPDFEMB_CHARSET_UNICODE		1200
-
-#define FPDFEMB_FONT_FIXEDPITCH		1
-#define FPDFEMB_FONT_SERIF			2
-#define FPDFEMB_FONT_SYMBOLIC		4
-#define FPDFEMB_FONT_SCRIPT			8
-#define FPDFEMB_FONT_NONSYMBOLIC	32
-#define FPDFEMB_FONT_ITALIC			64
-#define FPDFEMB_FONT_ALLCAP			0x10000
-#define FPDFEMB_FONT_SMALLCAP		0x20000
-#define FPDFEMB_FONT_FORCEBOLD		0x40000
-
-// Structure: FPDFEMB_FONT_MAPPER
-//			Defines interface for system font mapper.
-//
-struct FPDFEMB_FONT_MAPPER
-{
-	// Interface: MapFont
-	//		Find font file path for a particular PDF font
-	// Parameters:
-	//		mapper		-	Pointer to the FPDFEMB_FONT_MAPPER structure
-	//		name		-	Font name
-	//		charset		-	Charset ID (see above FPDFEMB_CHARSET_xxx constants)
-	//		flags		-	Font flags (see above FPDFEMB_FONT_xxx constants)
-	//		weight		-	Weight of the font. Range from 100 to 900. 400 is normal,
-	//						700 is bold.
-	//		path		-	Receiving the full file path. The buffer size is 512 bytes.
-	//		face_index	-	Receiving an zero-based index value for the font face, if the 
-	//						mapped font file is a "collection" (meaning a number of faces 
-	//						are stored in the same file). If the font file is not a 
-	//						collection, the index value should be zero.
-	// Return Value:
-	//		Non-zero for success, 0 for failure.
-	//
-	FPDFEMB_BOOL	(*MapFont)(struct FPDFEMB_FONT_MAPPER* mapper, const char* name, int charset,
-									unsigned int flags,	int weight,
-									char* path, int* face_index);
-
-	void*		user;		// A user pointer, used by the application
-};
-
-// Function: FPDFEMB_SetFontMapper
-//			Use a system font mapper (typically for Chinese/Japanese/Korean charsets)
-// Parameters:
-//			mapper		-	Pointer to FPDFEMB_FONT_MAPPER structure.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			This function is used with devices that come with one or more system fonts,
-//			and those fonts are in standard TT or T1 format.
-//
-FPDFEMB_RESULT FPDFEMB_SetFontMapper(FPDFEMB_FONT_MAPPER* mapper);
-
-// Structure: FPDFEMB_GLYPH_PROVIDER
-//			Interface for providing glyph bitmap of non-latin characters.
-//			This is usually used for embedded devices with Chinese/Japanese/Korean 
-//			fonts installed, but those fonts are not in TrueType or Type1 format.
-//
-struct FPDFEMB_GLYPH_PROVIDER
-{
-	// Interface: MapFont
-	//		Return an internal handle for a font
-	// Parameters:
-	//		provider	-	Pointer to this structure
-	//		name		-	Font name
-	//		charset		-	Charset ID (see above FPDFEMB_CHARSET_xxx constants)
-	//		flags		-	Font flags (see above FPDFEMB_FONT_xxx constants)
-	//		weight		-	Weight of the font. Range from 100 to 900. 400 is normal,
-	//						700 is bold.
-	// Return Value:
-	//		An internal handle to the mapped font. If the embedded device supports
-	//		multiple fonts, then this value can serve as an identifier to differentiate
-	//		among them. If the device supports only one font, then implementation of
-	//		this function can simply return NULL.
-	//
-	void*	(*MapFont)(struct FPDFEMB_GLYPH_PROVIDER* provider, const char* name, int charset,
-									unsigned int flags,	int weight);
-	// Interface: GetGlyphBBox
-	//		Get glyph bounding box
-	// Parameters:
-	//		provider	-	Pointer to this structure
-	//		font		-	Internal handle to the font. Returned by MapFont interface.
-	//		unicode		-	Unicode of the character
-	//		CID			-	Adobe CID for this character. Or zero if not available.
-	//		bbox		-	Receiving the result bounding box. See comments below.
-	// Return Value:
-	//		None.
-	// Comments:
-	//		The bounding box is measure in a glyph coordination system, in which the
-	//		origin is set to character origin, and unit is set to one-thousandth of
-	//		"em size" (representing the font size).
-	//
-	//		In most CJK fonts, all CJK characters (except some symbols or western 
-	//		characters) have same glyph bounding box:
-	//		left = 0, right = 1000, bottom = -220, top = 780.
-	//
-	//		It's OK to return a box that's larger than the actual glyph box.
-	//
-	void	(*GetGlyphBBox)(struct FPDFEMB_GLYPH_PROVIDER* provider, void* font,
-									FPDFEMB_WCHAR unicode, unsigned short CID,
-									FPDFEMB_RECT* bbox);
-
-	// Interface: GetGlyphBitmap
-	//		Get bitmap of a glyph
-	// Parameters:
-	//		provider	-	Pointer to this structure
-	//		font		-	Internal handle to the font. Returned by MapFont interface.
-	//		unicode		-	Unicode of the character
-	//		CID			-	Adobe CID for this character. Or zero if not available.
-	//		font_width	-	Width of the font em square, measured in device units.
-	//		font_height	-	Height of the font em square, measured in device units.
-	//		left		-	Receiving the left offset, from the character origin, of the
-	//						result glyph bitmap. Positive value will move the bitmap to
-	//						the right side, negative to the left.
-	//		top			-	Receiving the top offset, from the character origin, of the
-	//						result glyph bitmap. Positive value will move the bitmap upward,
-	//						negative downward.
-	//		bitmap_width -	Receiving number of width pixels in the result bitmap
-	//		bitmap_height -	Receiving number of height pixels in the result bitmap
-	//		buffer		-	Receiving a data buffer pointer, allocated by the implementation.
-	//						See comments below.
-	//		stride		-	Receiving number of bytes per scanline, in the data buffer.
-	//		pdf_width	-	Width of the character specified in PDF. It is measured in one-
-	//						thousandth of the font width. It can be 0 if width not specified
-	//						in PDF. See comments below.
-	// Return Value:
-	//		Non-zero for success. 0 for failure. In this case the glyph can not be displayed.
-	// Comments:
-	//		The buffer should be allocated by implemenation. And it must be allocated
-	//		using FPDFEMB_AllocMemory function. The result buffer will be destroyed by
-	//		FPDFEMB SDK, so implementation should not destroy it.
-	//
-	//		The implementation should write "coverage" data into allocated buffer, one byte 
-	//		for each pixel, from top scanline to bottom scanline, within each scan line, 
-	//		from left pixel to right. Coverage 0 means the pixel is outside the glyph, 
-	//		coverage 255 means the pixel is inside the glyph.
-	//
-	//		The "pdf_width" parameter can be used to scale the character in system font
-	//		horizontally to match the font width specified in PDF. For example, if we have
-	//		a PDF file which requires a character in half-width (pdf_width is 500), but
-	//		in the system font the character has full-width (1000), then the glyph provider
-	//		implementation should scale the font horizontally to half of its original width.
-	//
-	FPDFEMB_BOOL (*GetGlyphBitmap)(struct FPDFEMB_GLYPH_PROVIDER* provider, void* font,
-									FPDFEMB_WCHAR unicode, unsigned short CID,
-									double font_width, double font_height, int* left, int* top,
-									int* bitmap_width, int* bitmap_height, 
-									void** buffer, int* stride, int pdf_width);
-
-	void*		user;		// A user pointer, used by the application
-};
-
-// Function: FPDFEMB_SetGlyphProvider
-//			Make use of a glyph provider: generating glyph bitmap for non-Latin characters
-// Parameters:
-//			provider	-	Pointer to the glyph provider structure.
-//							This structure must stay valid throughout usage of FPDFEMB module.
-// Return Value:
-//			None.
-// Comments:
-//			FPDFEMB embeds some standard fonts for Latin characters and symbols, like
-//			Times, Courier and Helvetica (Arial). For non-Latin characters, however,
-//			FPDFEMB has to ask glyph provide for help.
-//
-//			If an embedded device carries fonts for non-Latin character sets, especially
-//			those for CJK markets, then the application can implement a glyph provider,
-//			allowing PDFs using non-embedded CJK fonts to be properly displayed.
-//
-void FPDFEMB_SetGlyphProvider(FPDFEMB_GLYPH_PROVIDER* provider);
-
-// Function: FPDFEMB_LoadCMap_GB
-// Function: FPDFEMB_LoadCMap_GB_Ext
-// Function: FPDFEMB_LoadCMap_CNS
-// Function: FPDFEMB_LoadCMap_Korean
-// Function: FPDFEMB_LoadCMap_Japan
-// Function: FPDFEMB_LoadCMap_Japan_Ext
-//			Make use of character encoding maps embedded with FPDFEMB
-// Parameters:
-//			None.
-// Return Value:
-//			None.
-// Comments:
-//			These functions add character encoding data to your application. Each call
-//			will increase the code size of your application. Total data size for all
-//			character sets is 151K bytes.
-void FPDFEMB_LoadCMap_GB();
-void FPDFEMB_LoadCMap_GB_Ext();		// Load full code table for GB
-void FPDFEMB_LoadCMap_CNS();
-void FPDFEMB_LoadCMap_Korea();
-void FPDFEMB_LoadCMap_Japan();
-void FPDFEMB_LoadCMap_Japan_Ext();	// Load full code table for Japan
-
-/********************************************************************************************
-****
-****		Document Information
-****
-********************************************************************************************/
-
-// Function: PDFEMB_GetDocInfoString
-//			Get information string about the document, like creator, modifcation date, etc.
-// Parameters:
-//			document	-	Handle to the document
-//			key			-	A byte string for the information key. Currently can be one of the followings:
-//							"Title", "Author", "Subject", "Keywords", "Creator", "Producer", "CreationDate",
-//							"ModDate", or some custom information key, if supported by the PDF file.
-//			buffer		-	A buffer allocated by the application, or NULL.
-//			bufsize		-	[IN/OUT] A pointer to a number indicating the buffer size (number of bytes),
-//							before this function call. After return, this place will store
-//							number of bytes used by the output (including terminator).
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			The string is output in Unicode, using UTF-16LE format. It's terminated by
-//			two consecutive zero bytes.
-//
-//			If the "buffer" parameter is NULL, then the "bufsize" parameter will receive
-//			number of bytes required to store the string (including the two-byte terminator).
-//
-FPDFEMB_RESULT FPDFEMB_GetDocInfoString(FPDFEMB_DOCUMENT document, const char* key, void* buffer, unsigned int* bufsize);
-
-/********************************************************************************************
-****
-****		Action (Destination) Information
-****
-********************************************************************************************/
-
-typedef void* FPDFEMB_ACTION;
-
-// Action types supported by FPDFEMB
-#define FPDFEMB_DEST_NONE			0		// No or unsupported destination
-#define FPDFEMB_DEST_PAGE			1		// A page inside the same document
-#define FPDFEMB_DEST_DOC			2		// An external PDF document
-#define FPDFEMB_DEST_URL			3		// An external URL
-#define FPDFEMB_ACTION_LAUNCH		4		// Launch an external file or command
-
-// Zoom mode for destination
-#define FPDFEMB_ZOOM_NONE			0		// Zoom mode not specified
-#define FPDFEMB_ZOOM_FACTOR			1		// Specific zoom factor is used
-#define FPDFEMB_ZOOM_FITPAGE		2		// Fit the whole page on screen
-#define FPDFEMB_ZOOM_FITWIDTH		3		// Fit width of the page on screen
-#define FPDFEMB_ZOOM_FITHEIGHT		4		// Fit height of the page on screen
-#define FPDFEMB_ZOOM_FITRECT		5		// Fit a particular rectangle on screen
-#define FPDFEMB_ZOOM_FITCONTENT		6		// Fit whole content of page on screen
-#define FPDFEMB_ZOOM_FITCONTENTW	7		// Fit content width of page on screen
-#define FPDFEMB_ZOOM_FITCONTENTH	8		// Fit content height of page on screen
-
-// Data structure for page destination
-struct FPDFEMB_PAGEDEST
-{
-	int				page_index;		// Zero based index for the page
-	int				zoom_mode;		// See FPDFEMB_ZOOM_xxx definition above
-	int				zoom_factor;	// For FPDFEMB_ZOOM_FACTOR only: the zoom factor (in percentage)
-	FPDFEMB_RECT	position;		// Specify position inside the page. Depends on the zoom mode,
-									// different members of the rectangle are used:
-									// FPDFEMB_ZOOM_NONE:			left, top
-									// FPDFEMB_ZOOM_FACTOR:			left, top
-									// FPDFEMB_ZOOM_FITPAGE:		none
-									// FPDFEMB_ZOOM_FITWIDTH:		top
-									// FPDFEMB_ZOOM_FITHEIGHT:		left
-									// FPDFEMB_ZOOM_FITRECT:		left, top, bottom, right
-									// FPDFEMB_ZOOM_FITCONTENT:		none
-									// FPDFEMB_ZOOM_FITCONTENTW:	top
-									// FPDFEMB_ZOOM_FITCONTENTH:	left
-};
-
-// Data structure for document destination
-struct FPDFEMB_DOCDEST
-{
-	FPDFEMB_PAGEDEST	page_data;	// page data
-	char*				file_name;	// The file name, encoded in original charset (maybe MBCS)
-};
-
-// Data structure for URL destination
-struct FPDFEMB_URLDEST
-{
-	char*				url;		// URL encoded in 7-bit ASCII
-};
-
-// Data structure for Launch action
-struct FPDFEMB_LAUNCHACTION
-{
-	int					new_window;	// Whether a new window should be opened
-	char*				file_name;	// The file name, encoded in original charset (maybe MBCS)
-};
-
-// Function: FPDFEMB_Action_GetType
-//			Get type of an action
-// Parameters:
-//			document	-	Handle to the document
-//			action		-	Handle to the action
-//			dest_type	-	Pointer to an integer receiving type of the destination. See the above
-//							FPDFEMB_DEST_xxx definitions
-//			data_size	-	Pointer to an integer receiving data block size for the destination.
-//							If this parameter is NULL, then data size won't be retrieved.
-// Comments:
-//			Each different type of destination has different data structure. The "data_size" result
-//			indicates how many bytes is required to hold the destination data structure. The application
-//			can then allocate sufficient buffer and then call FPDFEMB_Bookmark_GetDest function to
-//			get the real data.
-//
-FPDFEMB_RESULT FPDFEMB_Action_GetType(FPDFEMB_DOCUMENT document, FPDFEMB_ACTION action, int* dest_type, int* data_size);
-
-// Function: FPDFEMB_Action_GetData
-//			Get detailed data of a particular action
-// Parameters:
-//			document	-	Handle to the document
-//			action		-	Handle to the action
-//			buffer		-	Application allocated buffer receiving the destination data
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			See data structure definition for different action type above. Please note
-//			the actual action data might use more space than the structure definition
-//			shows, to store things like file name or URL. So you should always call
-//			FPDFEMB_Action_GetType first to get data size then allocate enough buffer
-//			for this call.
-//
-FPDFEMB_RESULT FPDFEMB_Action_GetData(FPDFEMB_DOCUMENT document, FPDFEMB_ACTION action, void* buffer);
-
-// Function: FPDFEMB_Action_GetNext
-//			Get next action in an action chain
-// Parameters:
-//			document	-	Handle to the document
-//			action		-	Handle to current action
-//			next		-	Receiving handle to next action.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			If there is no next action, the "next" parameter will be set to NULL after the function returns.
-//
-FPDFEMB_RESULT FPDFEMB_Action_GetNext(FPDFEMB_ACTION action, FPDFEMB_ACTION* next);
-
-/********************************************************************************************
-****
-****		Bookmark Information
-****
-********************************************************************************************/
-
-typedef void* FPDFEMB_BOOKMARK;
-
-// Function: FPDFEMB_Bookmark_GetFirstChild
-//			Get first child of a bookmark item, or first top level bookmark item
-// Parameters: 
-//			document	-	Handle to the document
-//			parent		-	Handle to the parent bookmark. 
-//							Can be NULL if you want to get the first top level item.
-//			bookmark	-	Receiving handle to the first child or top level bookmark item. 
-//							If result is NULL, then bookmark not found.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-//
-FPDFEMB_RESULT FPDFEMB_Bookmark_GetFirstChild(FPDFEMB_DOCUMENT document, FPDFEMB_BOOKMARK parent,
-											  FPDFEMB_BOOKMARK* bookmark);
-
-// Function: FPDFEMB_Bookmark_GetFirstChild
-//			Get next sibling of a bookmark item
-// Parameters: 
-//			document	-	Handle to the document
-//			bookmark	-	Handle to the bookmark 
-//			sibling		-	Receiving the handle of next sibling.
-//							If result is NULL, then this is the last bookmark in this level.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-//
-FPDFEMB_RESULT FPDFEMB_Bookmark_GetNextSibling(FPDFEMB_DOCUMENT document, FPDFEMB_BOOKMARK bookmark,
-											  FPDFEMB_BOOKMARK* sibling);
-
-// Function: FPDFEMB_Bookmark_GetTitle
-//			Get title of a bookmark
-// Parameters: 
-//			bookmark	-	Handle to the bookmark 
-//			buffer		-	A buffer allocated by the application, or NULL.
-//			bufsize		-	[IN/OUT] A pointer to a number indicating the buffer size,
-//							before this function call. After return, this place will store
-//							number of bytes used by the output (including terminator).
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			The title is output in Unicode, using UTF-16LE format. It's terminated by
-//			two consecutive zero bytes.
-//
-//			If the "buffer" parameter is NULL, then the "bufsize" parameter will receive
-//			number of bytes required to store the bookmark title (including the two-
-//			byte terminator).
-//
-//			If the buffer provided is smaller than the required size, then this function
-//			will not copy any data, return FPDFEMB_PARAM, and the required buffer size will 
-//			also be put in "bufsize" parameter.
-//
-FPDFEMB_RESULT FPDFEMB_Bookmark_GetTitle(FPDFEMB_BOOKMARK bookmark, void* buffer, unsigned int* bufsize);
-
-// Function: FPDFEMB_Bookmark_GetPage
-//			Get page number of a bookmark pointing to
-// Parameters:
-//			document	-	Handle to the document
-//			bookmark	-	Handle to the bookmark 
-//			page		-	Receiving the page number. -1 if this bookmark doesn't actually
-//							point to a page inside the document.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success
-// Comments:
-//			Some bookmark might not point to a page, some bookmark might have more than one destination
-//			(action), for detailed information about a bookmark, you should call FPDFEMB_Bookmark_GetAction.
-//
-FPDFEMB_RESULT FPDFEMB_Bookmark_GetPage(FPDFEMB_DOCUMENT document, FPDFEMB_BOOKMARK bookmark, int* page);
-
-// Function: FPDFEMB_Bookmark_GetAction
-//			Get action(s) associated with a particular bookmark
-// Parameters:
-//			document	-	Handle to the document
-//			bookmark	-	Handle to the bookmark 
-//			action		-	Receiving handle of first action
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_Bookmark_GetAction(FPDFEMB_DOCUMENT document, FPDFEMB_BOOKMARK bookmark, FPDFEMB_ACTION* action);
-
-/********************************************************************************************
-****
-****		Hyperlink Information
-****
-********************************************************************************************/
-
-// Function: FPDFEMB_Link_GetCount
-//			Get number of hyperlinks inside a page
-// Parameters:
-//			page		-	Page handle.
-//			link_count	-	Pointer to an integer receiving the number of links
-//			reserved	-	Must be zero now.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			This function must be called before any other link related function can
-//			be called for the page.
-//
-FPDFEMB_RESULT FPDFEMB_Link_GetCount(FPDFEMB_PAGE page, int* link_count, int reserved);
-
-// Function: FPDFEMB_Link_GetAction
-//			Get action(s) associated with a particular hyperlink
-// Parameters:
-//			page		-	Page handle
-//			link_index	-	Zero-based index for the link
-//			action		-	Receiving handle of first action
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_Link_GetAction(FPDFEMB_PAGE page, int link_index, FPDFEMB_ACTION* action);
-
-// Function: FPDFEMB_Link_GetAreaCount
-//			Get number of area (quadrilaterals) for a link
-// Parameters:
-//			page		-	Page handle
-//			link_index	-	Zero-based index for the link
-//			count		-	Pointer to an integer receiving number of quadrilaterals
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_Link_GetAreaCount(FPDFEMB_PAGE page, int link_index, int* count);
-
-// Function: FPDFEMB_Link_GetArea
-//			Get a particular quadrilateral for a link
-// Parameters:
-//			page		-	Page handle
-//			link_index	-	Zero-based index for the link
-//			area_index	-	Zero-based index for the quadrilateral
-//			points		-	Pointer to an array consists 4 points, receiving coordinations
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			The result in "points" array are the X/Y coordinations for the four vertices
-//			of the quadrilateral. Vertices are in the following order: lower left, lower
-//			right, upper right, upper left.
-//
-FPDFEMB_RESULT FPDFEMB_Link_GetArea(FPDFEMB_PAGE page, int link_index, int area_index, 
-									FPDFEMB_POINT* points);
-
-/********************************************************************************************
-****
-****		Graphic Output (onto DIB)
-****
-********************************************************************************************/
-
-typedef void* FPDFEMB_FONT;
-
-// Function: FPDFEMB_OpenStandardFont
-//			Get ready to use a standard PDF font
-// Parameters:
-//			font_name	-	Name of the font. See a list of supported fonts below.
-//			font_handle	-	Receiving the font handle.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			Currently supported standard fonts:
-//			Courier, Courier-Bold, Courier-BoldOblique, Courier-Oblique,
-//			Helvetica, Helvetica-Bold, Helvetica-BoldOblique, Helvetica-Oblique,
-//			Times-Roman, Times-Bold, Times-Italic, Times-BoldItalic,
-//			Symbol, ZapfDingbats.
-//
-FPDFEMB_RESULT FPDFEMB_OpenStandardFont(const char* font_name, FPDFEMB_FONT* font_handle);
-
-// Function: FPDFEMB_OpenSystemFont
-//			Get ready to use a system font
-// Parameters:
-//			font_name	-	Font name
-//			charset		-	Charset ID (see above FPDFEMB_CHARSET_xxx constants)
-//			flags		-	Font flags (see above FPDFEMB_FONT_xxx constants)
-//			weight		-	Weight of the font. Range from 100 to 900. 400 is normal,
-//							700 is bold.
-//			font_handle	-	Receiving the font handle.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-// Comments:
-//			System font is supported only if either FPDFEMB_SetFontMapper or
-//			FPDFEMB_SetGlyphProvider is called.
-//			Font attributes (name, charset, flags and weight) can be all optional, if the
-//			font mapper or glyph provider doesn't make use of them.
-//
-FPDFEMB_RESULT FPDFEMB_OpenSystemFont(const char* font_name, int charset, unsigned int flags, int weight,
-									  FPDFEMB_FONT* font_handle);
-
-// Function: FPDFEMB_CloseFont
-//			Close a font handle.
-// Parameters:
-//			font_handle	-	Handle to the font.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_CloseFont(FPDFEMB_FONT font_handle);
-
-struct FPDFEMB_TEXTMATRIX
-{
-	double	a, b, c, d;
-};
-
-// Function: FPDFEMB_OutputText
-//			Output text string onto a DIB device.
-// Parameters:
-//			dib			-	DIB handle, as the output device
-//			x, y		-	DIB coordinations for the origin point of the first character.
-//			font_handle	-	Handle to the font
-//			font_size	-	Font size in pixels
-//			matrix		-	Matrix for the text output. Can be NULL.
-//			text		-	Zero-terminated unicode text string
-//			argb		-	Color of the text, in 0xaarrggbb format.
-// Return Value:
-//			Error code, or FPDFERR_SUCCESS for success.
-//
-FPDFEMB_RESULT FPDFEMB_OutputText(FPDFEMB_BITMAP dib, int x, int y, FPDFEMB_FONT font_handle, double font_size,
-								  FPDFEMB_TEXTMATRIX* matrix, const FPDFEMB_WCHAR* text, unsigned long argb);
-
-#ifdef __cplusplus
-};
-#endif
-
-#endif	// #ifdef _FPDFEMB_H_