LImageViewerCell::UpdateCellView

#include "ltwrappr.h"

L_INT LImageViewerCell::UpdateCellView(uFlags)

Recalculates the cell's internal values in order to update the view according to the new change made on the image.

Parameters

L_UINT uFlags

Reserved for future use. Pass 0.

Returns

Comments

This function is useful when the user applies a certain effect on the cell image that causes the image dimensions to change.

This function will also repaint the cell. To repaint the cell only with recalculated internal data, use the LImageViewerCell::RepaintCell function.

To stop repainting while applying a series of effects without refreshing each time an effect is applied, use the function LImageViewerCell::BeginUpdate to stop the cell from repainting, and then use the function LImageViewerCell::BeginUpdate to repaint everything.

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.

L_INT LImageViewer_UpdateCellViewExample(LImageViewerCell& ImageViewerCell) 
{ 
   L_INT        nRet; 
   BITMAPHANDLE BitmapHandle; 
   LBitmap      Bitmap; 
 
   nRet = ImageViewerCell.GetBitmapHandle(0, &BitmapHandle, 0); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   Bitmap.SetHandle(&BitmapHandle); 
 
   nRet = Bitmap.Size(Bitmap.GetWidth() * 2, Bitmap.GetHeight(), SIZE_BICUBIC); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   pBITMAPHANDLE pBitmapHandle = Bitmap.GetHandle(); 
 
   ImageViewerCell.SetBitmapHandle(0, pBitmapHandle, TRUE, 0); 
   Bitmap.SetHandle(0, 0); 
 
   nRet = ImageViewerCell.UpdateCellView(0); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
}