Forms Delphi

Title: prevent a Form from Moving/Resizing?
private

procedure WMSysCommand(var Msg: TWMSysCommand); message WM_SYSCOMMAND;
{...}
implementation
procedure TForm1.WMSysCommand(var Msg: TWMSysCommand);
begin
if ((Msg.CmdType and $FFF0) = SC_MOVE) or
((Msg.CmdType and $FFF0) = SC_SIZE) then
begin
Msg.Result := 0;
Exit;
end;
inherited;
end;