unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
DevMode: TDeviceMode;
begin
EnumDisplaySettings( nil, 0, DevMode );
DevMode.dmFields := DM_PELSWIDTH or DM_PELSHEIGHT;
DevMode.dmPelsWidth := 1024;
DevMode.dmPelsHeight := 768;
if ChangeDisplaySettings(DevMode, CDS_UPDATEREGISTRY)
= DISP_CHANGE_SUCCESSFUL then
showmessage('Unable to change screen resolution');
else
showmessage('Success!');
end;
end.