int hwndHeader =  OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); if (OS.IsWinCE) { OS.InvalidateRect (hwndHeader, null, true); } else { int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; OS.RedrawWindow (hwndHeader, null, 0, flags); }
public void setFont (Font font) {	checkWidget ();	super.setFont (font);	setScrollWidth ();	int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0);	if ((bits & OS.LVS_EX_GRIDLINES) == 0) return;	bits = OS.GetWindowLong (handle, OS.GWL_STYLE);		if ((bits & OS.LVS_NOCOLUMNHEADER) != 0) return;	setRowHeight ();}