键盘和鼠标

Question

unit Unit1;interfaceuses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Edit1: TEdit;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form1: TForm1;
    EventArr:array[0..1000]of EVENTMSG;
  EventLog:Integer;
  PlayLog:Integer;
  hHook,hPlay:Integer;
  recOK:Integer;
  canPlay:Integer;
  bDelay:Bool;
implementation{$R *.DFM}Function PlayProc(iCode:Integer;wParam:wParam;lParam:lParam):LRESULT;stdcall;
begin
  canPlay:=1;
  Result:=0;  if iCode < 0 then    //必须将消息传递到消息链的下一个接受单元
    Result := CallNextHookEx(hPlay,iCode,wParam,lParam)
  else if iCode = HC_SYSMODALON then
    canPlay:=0
  else if iCode = HC_SYSMODALOFF then
    canPlay:=1
  else if ((canPlay =1 )and(iCode=HC_GETNEXT)) then begin
    if bDelay then begin
      bDelay:=False;
      Result:=50;
    end;
    pEventMSG(lParam)^:=EventArr[PlayLog];
  end
  else if ((canPlay = 1)and(iCode = HC_SKIP))then begin
    bDelay := True;
    PlayLog:=PlayLog+1;
  end;
  if PlayLog>=EventLog then begin
    UNHookWindowsHookEx(hPlay);
  end;
end;function HookProc(iCode:Integer;wParam:wParam;lParam:lParam):LRESULT;stdcall;
begin
  recOK:=1;
  Result:=0;  if iCode < 0 then
    Result := CallNextHookEx(hHook,iCode,wParam,lParam)
  else if iCode = HC_SYSMODALON then
    recOK:=0
  else if iCode = HC_SYSMODALOFF then
    recOK:=1
  else if ((recOK>0) and (iCode = HC_ACTION)) then begin
    EventArr[EventLog]:=pEventMSG(lParam)^;
    EventLog:=EventLog+1;    if EventLog>=1000 then begin
      UnHookWindowsHookEx(hHook);
    end;
  end;
end;procedure TForm1.FormCreate(Sender: TObject);
begin
 Button1.Caption:='纪录';
  Button2.Caption:='停止';
  Button3.Caption:='回放';
  Button4.Caption:='范例';
  Button2.Enabled:=False;
  Button3.Enabled:=False;
end;procedure TForm1.Button1Click(Sender: TObject);
begin
  EventLog:=0;
  //建立键盘鼠标操作消息纪录链
  hHook:=SetwindowsHookEx(WH_JOURNALRECORD,HookProc,HInstance,0);
  Button2.Enabled:=True;
  Button1.Enabled:=False;
end;procedure TForm1.Button2Click(Sender: TObject);
begin
  UnHookWindowsHookEx(hHook);
  hHook:=0;  Button1.Enabled:=True;
  Button2.Enabled:=False;
  Button3.Enabled:=True;
end;procedure TForm1.Button3Click(Sender: TObject);
begin
  PlayLog:=0;
  //建立键盘鼠标操作消息纪录回放链
  hPlay:=SetwindowsHookEx(WH_JOURNALPLAYBACK,PlayProc,
    HInstance,0);  Button3.Enabled:=False;
end;end.