下面的代码是MFC programmer's SOURCEBOOK中的一部分供参考:
// HitTestEx - Determine the row index and column index for a point
// Returns - the row index or -1 if point is not over a row
// point - point to be tested.
// col - to hold the column index
int CSLList::HitTestEx(CPoint &point, int *col) const
{
int colnum = 0;
int row = HitTest( point, NULL );
if( col ) *col = 0;
// Make sure that the ListView is in LVS_REPORT
if( (GetWindowLong(m_hWnd, GWL_STYLE) & LVS_TYPEMASK) != LVS_REPORT )
return row;
// Get the top and bottom row visible
row = GetTopIndex();
int bottom = row + GetCountPerPage();
if( bottom > GetItemCount() )
bottom = GetItemCount();
// Get the number of columns
CHeaderCtrl* pHeader = (CHeaderCtrl*)GetDlgItem(0);
int nColumnCount = pHeader->GetItemCount();
// Loop through the visible rows
for( ;row <=bottom;row++)
{
// Get bounding rect of item and check whether point falls in it.
CRect rect;
GetItemRect( row, &rect, LVIR_BOUNDS );
if( rect.PtInRect(point) )
{
// Now find the column
for( colnum = 0; colnum < nColumnCount; colnum++ )
{
int colwidth = GetColumnWidth(colnum);
if( point.x >= rect.left
&& point.x <= (rect.left + colwidth ) )
{
if( col ) *col = colnum;
return row;
}
rect.left += colwidth;
}
}
}
return -1;
}