I need to get the number of columns in a list control in report mode.
Right now I'm sending a LVM_GETCOLUMN
with increasing column number until SendMessage
returns FALSE
:
int col;
for (col = 0;; col++)
{
LVCOLUMN Column;
Column.mask = LVCF_WIDTH;
if (!::SendMessage(hWnd, LVM_GETCOLUMN, col, (LPARAM)Column)
break;
}
But this is rather awkward.
You can retrieve the number of columns from the header control of the list control.
HWND hWndHdr = (HWND)::SendMessage(hWnd, LVM_GETHEADER, 0, 0);
int count = (int)::SendMessage(hWndHdr, HDM_GETITEMCOUNT, 0, 0L);