unit1.~pas

精彩编程百例51～75 其中有 cpu速度测试 检测声卡 查询内存信息 图像处理技巧 模拟放大镜效果等待

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var I:Integer;
begin 
  I := WaveOutGetNumDevs();
  if I<=0 then
    showmessage('系统没有发现声卡:(')
  else
    showmessage('系统发现声卡8_*');
end;



end.