Classes and Member Functions > LBitmapBase > LBitmapBase Member Functions > LBitmapBase::IsBitmapListLocked

LBitmapBase::IsBitmapListLocked

#include "ltwrappr.h"

L_BOOL LBitmapBase::IsBitmapListLocked()

Determines whether the bitmap list is locked.

Returns

TRUE	The bitmap list is locked.
FALSE	The bitmap list is not locked.

Comments

Call this function to check if the bitmap list is locked. If this class object was created using the LBitmapList::GetItem, LBitmapList::GetFirstItem, LBitmapList::GetLastItem, LBitmapList::GetPreviousItem, or LBitmapList::GetNextItem functions, then the bitmap list will be locked until you restore the bitmap to the list using the LBitmapList::SetItem function.

Required DLLs and Libraries

LTDIS
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 LBitmapBase__IsBitmapListLockedExample() 
{ 
   L_INT nRet; 
   LBitmapBase MyBitmap; 
   LBitmapList BmpList; 
   L_TCHAR* pszFile=MAKE_IMAGE_PATH(TEXT("image1.cmp")); 
   /*add items to BmpList*/ 
   nRet =BmpList.Load(pszFile); 
   if(nRet !=SUCCESS) 
      return nRet; 
   nRet =BmpList.GetItem(0,&MyBitmap, sizeof(BITMAPHANDLE)) ; 
   if(nRet !=SUCCESS) 
      return nRet; 
   if(MyBitmap.IsBitmapListLocked()) 
      nRet = BmpList.SetItem(0,&MyBitmap) ; 
   return nRet; 
}