LBitmapList::RemoveItem

#include "ltwrappr.h"

virtual L_INT LBitmapList::RemoveItem(uIndex, pRemovedBitmap)

L_UINT uIndex;	position of the bitmap in the list
LBitmapBase * pRemovedBitmap;	pointer to an LBitmapBase object

Removes a bitmap from the list.

Parameter	Description
uIndex	Position of the bitmap in the list. Use zero-based indexing. For example, if there are 10 bitmaps in a list, the index of the last one is 9. When you remove a bitmap from a list, the indexes of other bitmaps change to accommodate the removal.
pRemovedBitmap	Pointer to the bitmap object that references the removed bitmap. You can use this object afterward to work with the individual bitmap.

Returns

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

Comments

This function does not free the bitmap. If you want to remove a bitmap from a bitmap list and free the bitmap, you should use LBitmapList::DeleteItems.

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.

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
L_INT LBitmapList__RemoveItemExample(HWND hWnd) 
{ 
   L_INT nRet; 
   LBitmapList BitmapList; 
   LBitmapBase Bitmap, PaintBitmap; 
   HDC hDC; 
   RECT rcClientRect; 
   // load three images and insert them in the list 
   Bitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp")), 0,ORDER_BGR); 
   BitmapList.Create (); 
   BitmapList.InsertItem (&Bitmap); 
   Bitmap.Load(MAKE_IMAGE_PATH(TEXT("image2.cmp")), 0,ORDER_BGR); 
   BitmapList.InsertItem (&Bitmap); 
   Bitmap.Load(MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\Image3.cmp")), 0,ORDER_BGR); 
   BitmapList.InsertItem (&Bitmap); 
   // Set the DC and the Destination rectangle 
   GetClientRect(hWnd, &rcClientRect); 
   hDC = GetDC(hWnd); 
   PaintBitmap.Paint()->SetDC(hDC); 
   PaintBitmap.SetDstRect(&rcClientRect); 
   // Remove an item and paint the removed item 
   nRet =BitmapList.RemoveItem (2, &PaintBitmap); 
   if(nRet !=SUCCESS) 
      return nRet; 
   PaintBitmap.Paint()->PaintDC(); 
   ReleaseDC(hWnd, hDC); 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Raster Imaging C++ Class Library Help

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