Add FPDFPage_SetRotation function

fpdfsdk/include/fpdfedit.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef _FPDFEDIT_H_
 #define _FPDFEDIT_H_
 
 #include "fpdfview.h"
@@ skipping 49 matching lines @@
 // Parameters:  
 //                      document        -       Handle to document. Returned by FPDF_LoadDocument and FPDF_CreateNewDocument.
 //                      page_index      -       The index of a page.
 // Return value:
 //                      None.
 DLLEXPORT void STDCALL FPDFPage_Delete(FPDF_DOCUMENT document, int page_index);
 
 // Function: FPDFPage_GetRotation
 //                      Get the page rotation. One of following values will be returned: 0(0), 1(90), 2(180), 3(270).
 // Parameters:  
-//                      page            -       Handle to a page. Returned by FPDFPage_New.
+//                      page            -       Handle to a page. Returned by FPDFPage_New or FPDF_LoadPage.
 // Return value:
 //                      The PDF page rotation.
 // Comment:
 //                      The PDF page rotation is rotated clockwise.
 DLLEXPORT int STDCALL FPDFPage_GetRotation(FPDF_PAGE page);
 
+// Function: FPDFPage_SetRotation
+//                      Set page rotation. One of following values will be set: 0(0), 1(90), 2(180), 3(270).
+// Parameters:  
+//                      page            -       Handle to a page. Returned by FPDFPage_New or FPDF_LoadPage.
+//                      rotate          -       The value of the PDF page rotation.
+// Return value:
+//                      None.
+// Comment:
+//                      The PDF page rotation is rotated clockwise.
+// 
+DLLEXPORT void STDCALL FPDFPage_SetRotation(FPDF_PAGE page, int rotate);
+
 // Function: FPDFPage_InsertObject
 //                      Insert an object to the page. The page object is automatically freed.
 // Parameters:  
-//                      page            -       Handle to a page. Returned by FPDFPage_New.
+//                      page            -       Handle to a page. Returned by FPDFPage_New or FPDF_LoadPage.
 //                      page_obj        -       Handle to a page object. Returned by FPDFPageObj_NewTextObj,FPDFPageObj_NewTextObjEx and
 //                                                      FPDFPageObj_NewPathObj.
 // Return value:
 //                      None.
 DLLEXPORT void STDCALL FPDFPage_InsertObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_obj);
 
 // Function: FPDFPage_CountObject
 //                      Get number of page objects inside the page.
 // Parameters:  
-//                      page            -       Handle to a page. Returned by FPDFPage_New.
+//                      page            -       Handle to a page. Returned by FPDFPage_New or FPDF_LoadPage.
 // Return value:
 //                      The number of the page object.
 DLLEXPORT int STDCALL FPDFPage_CountObject(FPDF_PAGE page);
 
 // Function: FPDFPage_GetObject
 //                      Get page object by index.
 // Parameters:  
-//                      page            -       Handle to a page. Returned by FPDFPage_New.
+//                      page            -       Handle to a page. Returned by FPDFPage_New or FPDF_LoadPage.
 //                      index           -       The index of a page object.
 // Return value:
 //                      The handle of the page object. Null for failed.
 DLLEXPORT FPDF_PAGEOBJECT STDCALL FPDFPage_GetObject(FPDF_PAGE page, int index);
 
 // Function: FPDFPage_HasTransparency
 //                      Check that whether the content of specified PDF page contains transparency.
 // Parameters:  
 //                      page            -       Handle to a page. Returned by FPDFPage_New or FPDF_LoadPage.
 // Return value:
 //                      TRUE means that the PDF page does contains transparency.
 //                      Otherwise, returns FALSE.
 DLLEXPORT FPDF_BOOL STDCALL FPDFPage_HasTransparency(FPDF_PAGE page);
 
 // Function: FPDFPage_GenerateContent
 //                      Generate PDF Page content.
 // Parameters:  
-//                      page            -       Handle to a page. Returned by FPDFPage_New.
+//                      page            -       Handle to a page. Returned by FPDFPage_New or FPDF_LoadPage.
 // Return value:
 //                      True if successful, false otherwise.
 // Comment:
 //                      Before you save the page to a file, or reload the page, you must call the FPDFPage_GenerateContent function.
 //                      Or the changed information will be lost.
 DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GenerateContent(FPDF_PAGE page);
 
 //////////////////////////////////////////////////////////////////////
 //
 // Page Object functions
@@ skipping 99 matching lines @@
 //                      image_object    -       Handle of image object returned by FPDFPageObj_NewImgeObj.
 //                      bitmap                  -       The handle of the bitmap which you want to set it to the image object.
 // Return value:
 //                      TRUE if successful, FALSE otherwise. 
 DLLEXPORT FPDF_BOOL STDCALL FPDFImageObj_SetBitmap(FPDF_PAGE* pages,int nCount,FPDF_PAGEOBJECT image_object, FPDF_BITMAP bitmap);
 
 #ifdef __cplusplus
 }
 #endif
 #endif // _FPDFEDIT_H_