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LImageViewerCell::GetCellBitmapList

Summary

Gets the bitmap list attached to the specified cell.

Syntax

#include "ltwrappr.h"

L_INT LImageViewerCell::GetCellBitmapList(phBitmapList, uFlags);

Parameters

pHBITMAPLIST phBitmapList

Pointer to the variable to be updated with the cell's bitmap list.

L_UINT uFlags

Reserved for future use. Pass 0.

Returns

Value	Meaning
SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

If the cell at the specified index has no image, phBitmapList will be NULL.

Call the LImageViewerCell::SetCellBitmapList function to set the bitmap list for a cell.

Required DLLs and Libraries

LTIVW
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Example

This function removes the specified cell without removing its image list.

L_INT LImageViewer_GetCellBitmapListExample(LImageViewer& ImageViewer)  
{ 
   HBITMAPLIST hBitmapList;  
   L_INT       nCellIndex = 0 ;  
   L_INT       nRet = 0 ;  
   L_INT       nCount = ImageViewer.GetCellCount(0);  
 
   // Check the validity of the cell index 
 
   if ((nCellIndex < 0) || (nCellIndex >= nCount))  
 
      return FAILURE; 
 
   // retrieve the bitmap list.  
 
   LImageViewerCell * ImageViewerCell = ImageViewer.GetCellHandle(nCellIndex, 0); 
   nRet = ImageViewerCell->GetCellBitmapList(&hBitmapList, 0);  
   if(nRet != SUCCESS) 
      return nRet; 
 
   // remove the cell 
   nRet = ImageViewer.RemoveCell(nCellIndex, 0);  
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
} 
 
L_INT LImageViewer_ImageProcessingExample(LImageViewer& ImageViewer, L_INT nCellIndex)  
{ 
   HBITMAPLIST  hBitmapList; 
   L_INT        nRet = 0 ; 
   L_INT        nCount = ImageViewer.GetCellCount(0); 
   LBitmapList  BitmapList; 
   LBitmap      Bitmap; 
 
   // Check the validity of the cell index 
   if ((nCellIndex < 0) || (nCellIndex >= nCount)) 
      return FAILURE; 
 
   LImageViewerCell * ImageViewerCell = ImageViewer.GetCellHandle(nCellIndex, 0); 
 
   // retrieve the bitmap list.  
   nRet = ImageViewerCell->GetCellBitmapList(&hBitmapList, 0); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = ImageViewerCell->SetCellBitmapList(NULL, 0, 0); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   BitmapList.SetHandle(hBitmapList,NULL,FALSE); 
 
   nRet = BitmapList.GetItem(0, &Bitmap, sizeof(BITMAPHANDLE)); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = Bitmap.Invert(); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   nRet = BitmapList.SetItem(0, &Bitmap); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   hBitmapList = BitmapList.GetHandle(); 
 
   nRet = ImageViewerCell->SetCellBitmapList(hBitmapList, 0, 0); 
 
   BitmapList.SetHandle(NULL, 0, FALSE); 
 
   return nRet; 
}