LDialogWeb::DoModalPNGWebTuner

// Example 1 
L_INT LDialogWeb_DoModalPNGWebTunerExample_1(LBitmap * pBitmap, HWND hWnd) 
{ 
   L_INT nRet; 
 
   LDialogWeb DlgWeb;  
 
   PNGWEBTUNERDLGPARAMS  DlgParams;  
 
   DlgWeb.SetBitmap(pBitmap);  
 
   memset ( &DlgParams, 0, sizeof ( PNGWEBTUNERDLGPARAMS ) ) ;  
 
   nRet = LDialogWeb::Initialize (0);  
   if(nRet != SUCCESS) 
      return nRet; 
 
   DlgParams.uStructSize      = sizeof ( PNGWEBTUNERDLGPARAMS ) ;  
   DlgParams.uDlgFlags  = DLG_PNGWEBTUNER_SHOW_EXPORT| 
                          DLG_PNGWEBTUNER_SHOW_INFORMATION |  
                          DLG_PNGWEBTUNER_SHOW_TOOL_COLORPICKER |  
                          DLG_PNGWEBTUNER_SHOW_TRANSPARENCY |  
                          DLG_PNGWEBTUNER_SHOW_ADDWINDOWCOLOR ;  
 
   DlgWeb.EnableCallBack (FALSE);  
   DlgWeb.EnablePreview (TRUE);  
   DlgWeb.EnableAutoProcess(TRUE);  
   DlgWeb.EnableToolbar (TRUE);  
 
   nRet = DlgWeb.SetPNGWebTunerParams(&DlgParams) ;  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgWeb.DoModalPNGWebTuner(hWnd);  
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
   nRet = DlgWeb.GetPNGWebTunerParams (&DlgParams, sizeof(DlgParams)) ;  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = LDialogImageEffect::Free(); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
} 
 
// Example 2 
static COLORREF AddTolerance ( COLORREF crColor, L_INT nTolerance )  
{ 
   L_INT nRed ; 
   L_INT nGreen ;  
   L_INT nBlue ;  
 
   nRed   = max ( min ( ( L_INT ) GetRValue ( crColor ) + nTolerance, 255 ), 0 ) ;  
   nGreen = max ( min ( ( L_INT ) GetGValue ( crColor ) + nTolerance, 255 ), 0 ) ;  
   nBlue  = max ( min ( ( L_INT ) GetBValue ( crColor ) + nTolerance, 255 ), 0 ) ;  
 
   return RGB ( nRed, nGreen, nBlue ) ;  
} 
 
L_INT ExportBitmap ( L_TCHAR * szFileName, LBitmapBase *pLBitmap, LPPNGWEBTUNERDLGPARAMS pParam )  
{ 
   L_INT nRet; 
   {// TRANSPERANCY 
      if ( pParam->bTransparent )  
      { 
         COLORREF crTransparentStart ;  
         COLORREF crTransparentEnd ;  
 
         //LBitmapRgn Region(pLBitmap);  
         crTransparentStart = AddTolerance ( pParam->crTransparent, 
                                             - pParam->nTransparencyTolerance ) ;  
 
         crTransparentEnd   = AddTolerance ( pParam->crTransparent,  
                                             pParam->nTransparencyTolerance ) ;  
 
         // reset 
         nRet = pLBitmap->Region()->Free () ; 
         if(nRet != SUCCESS) 
            return nRet; 
 
         // set attributes 
         pLBitmap->EnablePlayBackTransparency (TRUE);  
         pLBitmap->SetPlayBackTransparentColor (pParam->crTransparent) ;  
 
         // replace colors 
         if ( pParam->nTransparencyTolerance >= 0 )  
         { 
            pLBitmap->Region()->SetRgnCombineMode (L_RGN_SET );  
            nRet = pLBitmap->Region()->SetRgnColorRGBRange ( crTransparentStart, crTransparentEnd) ;  
            if(nRet != SUCCESS) 
               return nRet; 
            if ( pLBitmap->Region()->BitmapHasRgn ( ) ) 
            { 
               pLBitmap->Fill ( pParam->crTransparent ) ; 
            } 
 
            nRet = pLBitmap->Region()->Free ( ) ; 
            if(nRet != SUCCESS) 
               return nRet; 
         } 
      } 
 
   }// TRANSPERANCY 
 
   {// COLOR RESOLUTION 
      L_UINT32 uFlags ;  
      if ( pParam->nBitsPerPixel < 24 )  
      { 
         uFlags  = ( ( pParam->bAddWindowsColors ) && ( CRF_OPTIMIZEDPALETTE == pParam->nPalType ) ) ? CRF_IDENTITYPALETTE : 0 ;  
         uFlags |= pParam->nDitherType ;  
         uFlags |= pParam->nPalType ;  
 
         nRet = pLBitmap->ColorRes (pParam->nBitsPerPixel,  
                                     uFlags,  
                                     NULL,  
                                     NULL,  
                                     pParam->nNumOfColors) ;  
         if(nRet != SUCCESS) 
            return nRet; 
      } 
 
   }// COLOR RESOLUTION 
 
   {// SAVE TO DISK 
   nRet = pLBitmap->Save(szFileName,  
                         FILE_PNG,  
                         pParam->nBitsPerPixel,  
                         0,  
                         NULL ) ;  
   if(nRet != SUCCESS) 
      return nRet; 
   }// SAVE TO DISK 
 
   return SUCCESS; 
} 
 
L_INT LDialogWeb_DoModalPNGWebTunerExample_2(LBitmap * pBitmap, HWND hWnd)  
{ 
   L_INT nRet = 0;  
   LDialogWeb DlgWeb;  
   PNGWEBTUNERDLGPARAMS DlgParams;  
 
   DlgWeb.SetBitmap (pBitmap);  
   memset ( &DlgParams, 0, sizeof ( PNGWEBTUNERDLGPARAMS ) ) ;  
 
   LDialogWeb::Initialize (0);  
   DlgParams.uStructSize      = sizeof ( PNGWEBTUNERDLGPARAMS ) ;  
   DlgParams.uDlgFlags  = DLG_PNGWEBTUNER_SHOW_INFORMATION |  
                          DLG_PNGWEBTUNER_SHOW_TOOL_COLORPICKER |  
                          DLG_PNGWEBTUNER_SHOW_TRANSPARENCY |  
                          DLG_PNGWEBTUNER_SHOW_ADDWINDOWCOLOR ;  
 
   DlgWeb.EnableCallBack (FALSE);  
   DlgWeb.EnablePreview (TRUE);  
   DlgWeb.EnableAutoProcess (TRUE);  
   DlgWeb.EnableToolbar (TRUE);  
 
   nRet = DlgWeb.SetPNGWebTunerParams (&DlgParams) ;  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgWeb.DoModalPNGWebTuner(hWnd);  
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
   DlgWeb.GetPNGWebTunerParams (&DlgParams, sizeof(DlgParams)) ;  
 
   if ( SUCCESS_DLG_OK == nRet )  
   { 
      nRet = ExportBitmap ( MAKE_IMAGE_PATH(TEXT("tuned.png")), DlgWeb.GetBitmap() , &DlgParams ) ;  
      if(nRet != SUCCESS) 
         return nRet; 
   } 
 
   nRet = LDialogImageEffect::Free (); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
}