如何将按键发送到窗口？

使用SendMessage插入文本到编辑缓冲区（这听起来像你想要的）：

 HWND notepad = FindWindow(_T("Notepad"), NULL); HWND edit = FindWindowEx(notepad, NULL, _T("Edit"), NULL); SendMessage(edit, WM_SETTEXT, NULL, (LPARAM)_T("hello")); 

如果你需要键码和任意击键，你可以使用SendInput() （可用于2k / xp和首选）或keybd_event() （这将在新操作系统中调用SendInput）

http://www.codeguru.com/forum/showthread.php?t=377393

还有你可能感兴趣的SendMessage的WM_SYSCOMMAND / WM_KEYDOWN / WM_KEYUP / WM_CHAR事件。

keybd_event（）已被SendInput（）取代，所以最好使用它。 下面是一些示例代码来完成你所要求的。 您可以使用SendMessage（）直接编辑记事本窗口的编辑控件，也可以使用SendInput（）来合成要发送到窗口的按键。

使用SendInput() ：

 int SendKeystrokesToNotepad( const TCHAR *const text ) { INPUT *keystroke; UINT i, character_count, keystrokes_to_send, keystrokes_sent; HWND notepad; assert( text != NULL ); //Get the handle of the Notepad window. notepad = FindWindow( _T( "Notepad" ), NULL ); if( notepad == NULL ) return 0; //Bring the Notepad window to the front. if( !SetForegroundWindow( notepad ) ) return 0; //Fill in the array of keystrokes to send. character_count = _tcslen( text ); keystrokes_to_send = character_count * 2; keystroke = new INPUT[ keystrokes_to_send ]; for( i = 0; i < character_count; ++i ) { keystroke[ i * 2 ].type = INPUT_KEYBOARD; keystroke[ i * 2 ].ki.wVk = 0; keystroke[ i * 2 ].ki.wScan = text[ i ]; keystroke[ i * 2 ].ki.dwFlags = KEYEVENTF_UNICODE; keystroke[ i * 2 ].ki.time = 0; keystroke[ i * 2 ].ki.dwExtraInfo = GetMessageExtraInfo(); keystroke[ i * 2 + 1 ].type = INPUT_KEYBOARD; keystroke[ i * 2 + 1 ].ki.wVk = 0; keystroke[ i * 2 + 1 ].ki.wScan = text[ i ]; keystroke[ i * 2 + 1 ].ki.dwFlags = KEYEVENTF_UNICODE | KEYEVENTF_KEYUP; keystroke[ i * 2 + 1 ].ki.time = 0; keystroke[ i * 2 + 1 ].ki.dwExtraInfo = GetMessageExtraInfo(); } //Send the keystrokes. keystrokes_sent = SendInput( ( UINT )keystrokes_to_send, keystroke, sizeof( *keystroke ) ); delete [] keystroke; return keystrokes_sent == keystrokes_to_send; } 

使用SendMessage() ：

 int SendKeystrokesToNotepad( const TCHAR *const text ) { HWND notepad, edit; assert( text != NULL ); //Get the handle of the Notepad window. notepad = FindWindow( _T( "Notepad" ), NULL ); if( notepad == NULL ) return 0; //Get the handle of the Notepad window's edit control. edit = FindWindowEx( notepad, NULL, _T( "Edit" ), NULL ); if( edit == NULL ) return 0; SendMessage( edit, EM_REPLACESEL, ( WPARAM )TRUE, ( LPARAM )text ); return 1; } 

我希望有帮助。