ViewSize example for C++ Builder
long nSize;
long nFirst;
long nLast;
long nCols;
long nCount;
//NOTE: assume scroll style = SCROLLSTYLE_VERTICAL
//get the view size
nSize = LEADImgList1->ViewSize;
//get the first visible item
nFirst = LEADImgList1->FirstVisibleItem;
//get the column count
nCols = LEADImgList1->ColumnCount;
//calculate the index of last visible item
nLast = nFirst + (nSize * nCols) - 1; //0 based index
nCount = LEADImgList1->Count;
if (nLast > nCount - 1)
nLast = nCount - 1;