Display content of the annotation when mouse hover.

fpdfsdk/include/cpdfsdk_baannot.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 FPDFSDK_INCLUDE_CPDFSDK_BAANNOT_H_
 #define FPDFSDK_INCLUDE_CPDFSDK_BAANNOT_H_
 
 #include "core/fpdfdoc/include/cpdf_aaction.h"
@@ skipping 20 matching lines @@
   CFX_ByteString GetType() const override;
   CFX_ByteString GetSubType() const override;
   void SetRect(const CFX_FloatRect& rect) override;
   CFX_FloatRect GetRect() const override;
   CPDF_Annot* GetPDFAnnot() const override;
   void Annot_OnDraw(CFX_RenderDevice* pDevice,
                     CFX_Matrix* pUser2Device,
                     CPDF_RenderOptions* pOptions) override;
 
   CPDF_Dictionary* GetAnnotDict() const;
+  CPDF_Annot* GetPDFPopupAnnot() const;
 
   void SetContents(const CFX_WideString& sContents);
   CFX_WideString GetContents() const;
 
   void SetAnnotName(const CFX_WideString& sName);
   CFX_WideString GetAnnotName() const;
 
   void SetModifiedDate(const FX_SYSTEMTIME& st);
   FX_SYSTEMTIME GetModifiedDate() const;
 
@@ skipping 39 matching lines @@
                   const CPDF_RenderOptions* pOptions);
 
   void ClearCachedAP();
 
   void WriteAppearance(const CFX_ByteString& sAPType,
                        const CFX_FloatRect& rcBBox,
                        const CFX_Matrix& matrix,
                        const CFX_ByteString& sContents,
                        const CFX_ByteString& sAPState = "");
 
+  void SetOpenState(bool bState);
+
  protected:
   CPDF_Annot* m_pAnnot;
 };
 
 #endif  // FPDFSDK_INCLUDE_CPDFSDK_BAANNOT_H_