进来看一下
zxjmm 2002-05-18 10:51:04 UINT nIndex = lpDIS->itemID;
if (nIndex != (UINT) -1)
{
//draw two rectangles, one for each row column
dc.FillSolidRect(rect2,RGB(192,192,192));
dc.DrawEdge(rect2,EDGE_SUNKEN,BF_BOTTOMRIGHT);
dc.DrawEdge(rect,EDGE_SUNKEN,BF_BOTTOM);
}
上面代码 if (nIndex != (UINT) -1)这句何解。谢谢