LBitmapList::DeleteItems
#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. |
See Also
Functions: |
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Topics: |
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Example
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(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\image1.cmp"), 0,ORDER_BGR); if(nRet !=SUCCESS) return nRet; nRet =BitmapList.InsertItem (&Bitmap); if(nRet !=SUCCESS) return nRet; nRet =Bitmap.Load(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\image2.cmp"), 0,ORDER_BGR); if(nRet !=SUCCESS) return nRet; nRet =BitmapList.InsertItem (&Bitmap); if(nRet !=SUCCESS) return nRet; nRet =Bitmap.Load(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\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; }