unit1.pas

该软件是Delphi关于API的一个使用！ 有详细说明文档和程序实例！

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    GroupBox1: TGroupBox;
    CheckBox1: TCheckBox;
    CheckBox2: TCheckBox;
    CheckBox3: TCheckBox;
    CheckBox4: TCheckBox;
    Button1: TButton;
    GroupBox2: TGroupBox;
    CheckBox5: TCheckBox;
    CheckBox6: TCheckBox;
    Button2: TButton;
    GroupBox3: TGroupBox;
    Label1: TLabel;
    Label2: TLabel;
    Button3: TButton;
    GroupBox4: TGroupBox;
    Button4: TButton;
    Label3: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  case(GetSystemMetrics(SM_CLEANBOOT)) of
    0:CheckBox1.Checked:=True;
    1:CheckBox2.Checked:=True;
    2:CheckBox3.Checked:=True;
    else
    CheckBox4.Checked:=True;
  end;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  if GetSystemMetrics(SM_NETWORK) AND $01 = $01
  then
    CheckBox5.Checked:=True
  else
    CheckBox6.Checked:=True;
end;

procedure TForm1.Button3Click(Sender: TObject);
var
  x:longint;
  a:string;
begin
  x := GetSystemMetrics(SM_CXSCREEN);
  Str(x,a);
  Label1.Caption := '显示器水平分辨率：' + a;
  x := GetSystemMetrics(SM_CYSCREEN);
  Str(x,a);
  Label2.Caption := '显示器垂直分辨率：' + a;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
  case(GetSystemMetrics(SM_CMOUSEBUTTONS)) of
    0: Label3.Caption:='鼠标异常';
    1: Label3.Caption:='鼠标有1个按键';
    2: Label3.Caption:='鼠标有2个按键';
    3: Label3.Caption:='鼠标有3个按键'
  end;
end;

end.