LImageListControl::GetFirstVisible

#include "ltwrappr.h"

L_INT LImageListControl::GetFirstVisible ()

Gets the index of the first visible item in the ImageList Control. This item is the one at the upper left corner of the control's view.

Returns

>= 0

The zero-based index of the first visible item.

< 0

An error occurred. Refer to Return Codes.

Required DLLs and Libraries

LTDIS
LTFIL
LTIMG

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.

See Also

Functions:

Class Members

Topics:

Using the ImageList Control

Example

L_INT LImageListControl__GetFirstVisibleExample(LImageListControl & ImageList, L_INT& nLastVisible) 
{ 
   L_INT nViewSize, nFirstVisible; 
   L_INT nColsOrRowsCount, nItemsCount; 
 
   nViewSize = ImageList.GetViewSize(); 
   nFirstVisible = ImageList.GetFirstVisible(); 
 
   if (ImageList.GetScrollStyle() == SCROLLSTYLE_VERTICAL) 
      nColsOrRowsCount = ImageList.GetColumnCount(); 
   else 
      nColsOrRowsCount = ImageList.GetRowCount(); 
 
   nLastVisible = nFirstVisible + (nViewSize * nColsOrRowsCount) - 1; 
 
   nItemsCount = ImageList.GetItemCount(); 
 
   if (nLastVisible > nItemsCount - 1) 
      nLastVisible = nItemsCount - 1; 
 
   return SUCCESS; 
} 
Help Version 20.0.2019.9.23
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2019 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Raster Imaging C++ Class Library Help