LBitmapList::GetCurrentIndex
#include "ltwrappr.h"
L_UINT LBitmapList::GetCurrentIndex(L_VOID)
Gets the current index for the bitmap list object.
Returns
The current index for the bitmap list object.
Comments
The current index controls which item is returned when calling LBitmapList::GetNextItem and LBitmapList::GetPreviousItem.
Use zero-based indexing. For example, if there are 10 bitmaps in a list, the index of the last one is 9.
Note: If the list is empty, this function will return 0.
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: |
Raster Image Functions: Creating and Maintaining Lists of Images |
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Example
L_VOID BitmapListSamples(HWND hWnd)
{
LBitmapList BitmapList;
LBitmapBase Bitmap;
L_TCHAR szDummyBuffer[50];
L_UINT uCurrentIndex;
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);
// Set list to second item
BitmapList.SetCurrentIndex(2);
// get the current index
uCurrentIndex = BitmapList.GetCurrentIndex ();
wsprintf(szDummyBuffer, TEXT("This is item number %d in list."), uCurrentIndex);
MessageBox(hWnd, szDummyBuffer, TEXT("LBitmapList"), MB_OK);
// destroy bitmaplist
BitmapList.Destroy ();
}