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.
Value | Meaning |
---|---|
>= 0 | The zero-based index of the first visible item. |
< 0 | An error occurred. Refer to Return Codes. |
Win32, x64.
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;
}
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