问题来源: http://www.cnblogs.com/del/archive/2009/10/27/1590975.html#1696167
procedure TForm1.Button1Click(Sender: TObject); var hEdit: HWND; str: string; begin str := '准备要添加到记事本的字符串'; WinExec('Notepad.exe', SW_SHOWNORMAL); hEdit := GetWindow(GetForegroundWindow, GW_CHILD); SendTextMessage(hEdit, WM_SETTEXT, 0, str); end;