توسط دستورات و توابع زیر می توانید رزولوشن مونیتور و اندازه دسکتاپ ویندوز را بدست آورید.

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;

type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
ShowMessage(IntToStr(Screen.Width) + ' * ' + IntToStr(Screen.Height));
end;

procedure TForm1.Button2Click(Sender: TObject);
var
hRect : TRect;
begin
SystemParametersInfo(SPI_GETWORKAREA,0,@hRect, 0);
ShowMessage(IntToStr(hRect.Top)
+ ' ' + IntToStr(hRect.Left)
+ ' ' + IntToStr(hRect.Bottom)
+ ' ' + IntToStr(hRect.Right));
end;

end.