LBitmapList::DeleteItems

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#include "ltwrappr.h"

virtual L_INT LBitmapList::DeleteItems(uIndex, uCount=1)

L_UINT uIndex;	/* index of the first bitmap to delete */
L_UINT uCount;	/* number of bitmaps to delete */

Deletes a set of bitmaps from the class object's bitmap list.

Parameter	Description
uIndex	Index of the first bitmap to delete.
uCount	Number of bitmaps to delete. You can specify (L_UINT) -1 to delete to the end of the list.

Returns

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

Comments

This removes the bitmaps from the class object's bitmap list and frees the bitmaps.

You cannot use this function to update a bitmap list while it is being used in an animation playback.

Required DLLs and Libraries

LTFIL

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

Platforms

Win32, x64.

See Also

Functions:	Class Members
Topics:	Raster Image Functions: Playing Animated Images
	Implementing Animation

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LBitmapList__DeleteItemsExample(HWND hWnd)
{
   L_INT nRet;
   LBitmapList BitmapList;
   LBitmapBase Bitmap;
   L_TCHAR szDummyBuffer[50];
   L_INT nCount;
   nRet =BitmapList.Create ();
   if(nRet !=SUCCESS)
      return nRet;
   // load three images and insert them in the list
   nRet =Bitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp")), 0,ORDER_BGR);
   if(nRet !=SUCCESS)
      return nRet;
   nRet =BitmapList.InsertItem (&Bitmap);
   if(nRet !=SUCCESS)
      return nRet;
   nRet =Bitmap.Load(MAKE_IMAGE_PATH(TEXT("image2.cmp")), 0,ORDER_BGR);
   if(nRet !=SUCCESS)
      return nRet;
   nRet =BitmapList.InsertItem (&Bitmap);
   if(nRet !=SUCCESS)
      return nRet;
   nRet =Bitmap.Load(MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\Image3.cmp")), 0,ORDER_BGR);
   if(nRet !=SUCCESS)
      return nRet;
   nRet =BitmapList.InsertItem (&Bitmap);
   if(nRet !=SUCCESS)
      return nRet;
   // Delete all items
   nRet =BitmapList.DeleteItems (0, BitmapList.GetItemsCount());
   if(nRet !=SUCCESS)
      return nRet;
   nCount = BitmapList.GetItemsCount ();
   wsprintf(szDummyBuffer, TEXT("List contains %d items."), nCount);
   MessageBox(hWnd, szDummyBuffer, TEXT("LBitmapList"), MB_OK);
   
   return SUCCESS;
}