LBitmapList::IsCreated

#include "ltwrappr.h"

virtual L_BOOL LBitmapList::IsCreated(L_VOID)

Determines whether a bitmap list has been created.

Returns

TRUE	A bitmap list has been created.
FALSE	A bitmap list has not been created.

Comments

The class object must contain a created bitmap list before you can use functions to insert, remove, or otherwise access bitmap list items.

You can create a bitmap list for the class object by doing one of the following:

$image\sqrblit.gif$ calling LBitmapList::Create

$image\sqrblit.gif$ calling the constructor LBitmapList(LBitmapList L_FAR* pBitmapList)

$image\sqrblit.gif$ using the = operator

$image\sqrblit.gif$ using LBitmapList::Load

$image\sqrblit.gif$ calling LBitmapList::CopyItems

$image\sqrblit.gif$ calling LBitmapList::SetBitmapList

$image\sqrblit.gif$ calling LBitmapList::SetHandle.

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

Example

L_VOID IsCreatedSamples(HWND hWnd)
{
   LBitmapList BitmapList;
   LBitmapBase Bitmap;
   L_BOOL bIsCreated;

   BitmapList.Create ();
   // load three images and insert them in the list
   Bitmap.Load(TEXT("image1.cmp"), 0,ORDER_BGR);
   BitmapList.InsertItem (&Bitmap);
   Bitmap.Load(TEXT("image2.cmp"), 0,ORDER_BGR);
   BitmapList.InsertItem (&Bitmap);
   Bitmap.Load(TEXT("image3.cmp"), 0,ORDER_BGR);
   BitmapList.InsertItem (&Bitmap);

   // get the internal handle
   bIsCreated = BitmapList.IsCreated ();
   if(bIsCreated == TRUE)
      MessageBox(hWnd, TEXT("List created successfully"), TEXT("LBitmapList"), MB_OK);

   // destroy the list
   BitmapList.Destroy ();
}