Послать нажатие клавиш

Delphi , ОС и Железо , Клавиши

Автор: Xavier Pacheco

unit Main;

interface

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

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    Button2: TButton;
    MainMenu1: TMainMenu;
    File1: TMenuItem;
    Open1: TMenuItem;
    Exit1: TMenuItem;
    Button4: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Open1Click(Sender: TObject);
    procedure Exit1Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

uses SendKey, KeyDefs;

procedure TForm1.Button1Click(Sender: TObject);
begin
  Edit1.SetFocus; // focus Edit1
  SendKeys('^{DELETE}I love...'); // send keys to Edit1
  WaitForHook; // let keys playback
  Perform(WM_NEXTDLGCTL, 0, 0); // move to Edit2
  SendKeys('~delphi ~developer''s ~guide!'); // send keys to Edit2
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  H: hWnd;
  PI: TProcessInformation;
  SI: TStartupInfo;
begin
  FillChar(SI, SizeOf(SI), 0);
  SI.cb := SizeOf(SI);
  { Invoke notepad }
  if CreateProcess(nil, 'notepad', nil, nil, False, 0, nil, nil, SI,
    PI) then
  begin
    { wait until notepad is ready to receive keystrokes }
    WaitForInputIdle(PI.hProcess, INFINITE);
    { find new notepad window }
    H := FindWindow('Notepad', 'Untitled - Notepad');
    if SetForegroundWindow(H) then // bring it to front
      SendKeys('Hello from the Delphi Developer''s Guide SendKeys ' +
        'example!{ENTER}'); // send keys!
  end
  else
    MessageDlg(Format('Failed to invoke Notepad.  Error code %d',
      [GetLastError]), mtError, [mbOk], 0);
end;

procedure TForm1.Open1Click(Sender: TObject);
begin
  ShowMessage('Open');
end;

procedure TForm1.Exit1Click(Sender: TObject);
begin
  Close;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
  WaitForInputIdle(GetCurrentProcess, INFINITE);
  SendKeys('@fx');
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
  WaitForHook;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  WaitForInputIdle(GetCurrentProcess, INFINITE);
  SendKeys('@fo');
end;

end.

Статья Послать нажатие клавиш раздела ОС и Железо Клавиши может быть полезна для разработчиков на Delphi и FreePascal.

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