LPlayBack::Append

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
class LPBUserFile : public LFile 
{ 
   HPALETTE m_hPalette; 
   HWND m_hWnd; 
   HDC m_hDC; 
   RECT m_rcPaint; 
public: 
   LPlayBack m_PlayBack; // playback handle 
   LPBUserFile(HWND hwnd, LBitmapBase *pBitmapBase); 
   virtual ~LPBUserFile(); 
   virtual    L_INT  LoadFileCallBack(pFILEINFO pFileInfo, 
   LBitmapBase * pLBitmap, 
   LBuffer * pLBuffer, 
   L_UINT uFlags, 
   L_INT nRow, 
   L_INT nLines); 
   virtual L_INT LoadFile(L_INT nBitsPerPixel=0, 
   L_INT nOrder=ORDER_BGR); 
}; 
////////////////////////////////////////////////////////////////////// 
// Construction/Destruction 
////////////////////////////////////////////////////////////////////// 
LPBUserFile::LPBUserFile(HWND hwnd, LBitmapBase *pBitmapBase):LFile(pBitmapBase) 
{ 
   m_hWnd = hwnd; 
   m_hDC = GetDC(m_hWnd); // DC will be released in the destructor 
   GetClientRect(m_hWnd, &m_rcPaint); 
   // Enable LoadInfoCallBack 
   EnableCallBack(TRUE); 
} 
LPBUserFile::~LPBUserFile() 
{ 
   ReleaseDC(m_hWnd, m_hDC); 
} 
L_INT  LPBUserFile::LoadFileCallBack( 
pFILEINFO pFileInfo, 
LBitmapBase *pBitmap, 
LBuffer * pLBuffer, 
L_UINT uFlags, 
L_INT nRow, 
L_INT nLines 
) 
{ 
   UNREFERENCED_PARAMETER(pFileInfo); 
   UNREFERENCED_PARAMETER(pLBuffer); 
   L_INT nRet;    // Return value 
   L_UINT uState; // Next state in the playback 
   RECT rcUpdate; // Source clipping rectangle used in playback 
   L_INT nCounter; 
   // If this is the first row of a bitmap ... 
   if (uFlags & FILEREAD_FIRSTROW) 
   { 
      // Append the bitmap to the list 
      nRet = m_PlayBack.Append(pBitmap); 
      if(nRet != SUCCESS) 
         return(nRet); 
   } 
   // Validate the lines in the bitmap so that we can paint them 
   m_PlayBack.ValidateLines(nRow, nLines); 
   uState = m_PlayBack.GetState (); 
   while(uState != PLAYSTATE_END) 
   { 
      // Play the animation 
      uState = m_PlayBack.Process(); 
      switch(uState) 
      { 
         case PLAYSTATE_WAITINPUT: 
         case PLAYSTATE_WAITDELAY  : 
         if (m_PlayBack.GetDelay () > 10) 
            m_PlayBack.CancelWait (); 
         break; 
         case PLAYSTATE_POSTCLEAR: 
         case PLAYSTATE_POSTRENDER: 
         m_PlayBack.GetUpdateRect(&rcUpdate, TRUE); 
         m_PlayBack.GetBitmap()->SetClipSrcRect(&rcUpdate); 
         m_PlayBack.GetBitmap()->SetDstRect(&m_rcPaint); 
         m_PlayBack.GetBitmap()->Paint()->SetDC(m_hDC); 
         m_PlayBack.GetBitmap()->CreatePaintPalette (m_hDC); 
         m_PlayBack.GetBitmap()->Paint()->PaintDC(); 
         break; 
      } 
      nCounter  = m_PlayBack.GetIndex(); 
      // do any processing on specific indexes 
      break; 
   } 
   return(SUCCESS); 
} 
L_INT LPBUserFile::LoadFile(L_INT nBitsPerPixel,L_INT nOrder) 
{ 
   m_PlayBack.Create (m_pBitmap); 
   return LFile::LoadFile (nBitsPerPixel, nOrder, LOADFILE_ALLOCATE | LOADFILE_STORE | LOADFILE_ALLPAGES); 
} 
L_INT LPlayBack__AppendExample(HWND hWnd) 
{ 
   L_INT nRet; 
   // this will call the default constructor 
   LBitmap LeadBitmap; 
   L_TCHAR szFileName[256] ; 
   lstrcpy(szFileName,MAKE_IMAGE_PATH(TEXT("eye.gif"))); 
   FILEINFO FileInfo; 
   // create instance from User File 
   LPBUserFile UserFile(hWnd, 0); 
   // Attach a bitmap to the UserFile Object 
   UserFile.SetBitmap (&LeadBitmap); 
   // attach a file name to UserFile Object 
   UserFile.SetFileName(szFileName); 
   // get the info of the  file object 
   nRet = UserFile.GetInfo (&FileInfo, sizeof(FileInfo)); 
   if(nRet != SUCCESS) 
      return nRet; 
   // create the bitmap 
   nRet = LeadBitmap.Create(FileInfo.Width, FileInfo.Height, FileInfo.BitsPerPixel, FileInfo.Order); 
   if(nRet != SUCCESS) 
      return nRet; 
   // load the file 
   nRet = UserFile.LoadFile(); 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 
}