//鼠标左键单击图片同事移动鼠标,窗体会同时随着鼠标移动
procedure TForm1.Image1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
if Button=mbLeft then
begin
windows.ReleaseCapture;
self.Perform(messages.WM_SYSCOMMAND,$f017,0);
end;
end;