keybd_event The keybd_event function synthesizes a keystroke. The system can use such a synthesized keystroke to generate a WM_KEYUP or WM_KEYDOWN message. The keyboard driver's interrupt handler calls the keybd_event function. Windows NT: This function has been superseded. Use SendInput instead.VOID keybd_event( BYTE bVk, // virtual-key code BYTE bScan, // hardware scan code DWORD dwFlags, // flags specifying various function options DWORD dwExtraInfo // additional data associated with keystroke );
Parameters bVk Specifies a virtual-key code. The code must be a value in the range 1 to 254. bScan Specifies a hardware scan code for the key. dwFlags A set of flag bits that specify various aspects of function operation. An application can use any combination of the following predefined constant values to set the flags. Value Meaning KEYEVENTF_EXTENDEDKEY If specified, the scan code was preceded by a prefix byte having the value 0xE0 (224). KEYEVENTF_KEYUP If specified, the key is being released. If not specified, the key is being depressed. dwExtraInfo Specifies an additional 32-bit value associated with the key stroke. Return Values This function has no return value. Res Although keybd_event passes an OEM-dependent hardware scan code to the system, applications should not use the scan code. The system converts scan codes to virtual-key codes internally and clears the up/down bit in the scan code before passing it to applications. An application can simulate a press of the PRINTSCREEN key in order to obtain a screen snapshot and save it to the clipboard. To do this, call keybd_event with the bVk parameter set to VK_SNAPSHOT, and the bScan parameter set to 0 for a snapshot of the full screen or set bScan to 1 for a snapshot of the active window. Windows CE: Windows CE supports an additional flag for the dwFlags parameter. Use the KEYEVENTF_SILENT flag to simulate a keystroke without making a clicking sound.Windows CE does not support the KEYEVENTF_EXTENDEDKEY flag.QuickInfo Windows NT: Requires version 3.1 or later. Windows: Requires Windows 95 or later. Windows CE: Requires version 1.0 or later. Header: Declared in winuser.h. Import Library: Use user32.lib.See Also Keyboard Input Overview, Keyboard Input Functions, GetAsyncKeyState, GetKeyState, MapVirtualKey, SetKeyboardState
要如何解决.
详细的见msdn
同样有一个函数mouse_event()像鼠标小精灵这些软件，就是使用这些函数编写的。。
The keybd_event function synthesizes a keystroke. The system can use such a synthesized keystroke to generate a WM_KEYUP or WM_KEYDOWN message. The keyboard driver's interrupt handler calls the keybd_event function. Windows NT: This function has been superseded. Use SendInput instead.VOID keybd_event(
BYTE bVk, // virtual-key code
BYTE bScan, // hardware scan code
DWORD dwFlags, // flags specifying various function options
DWORD dwExtraInfo // additional data associated with keystroke
);
Parameters
bVk
Specifies a virtual-key code. The code must be a value in the range 1 to 254.
bScan
Specifies a hardware scan code for the key.
dwFlags
A set of flag bits that specify various aspects of function operation. An application can use any combination of the following predefined constant values to set the flags. Value Meaning
KEYEVENTF_EXTENDEDKEY If specified, the scan code was preceded by a prefix byte having the value 0xE0 (224).
KEYEVENTF_KEYUP If specified, the key is being released. If not specified, the key is being depressed.
dwExtraInfo
Specifies an additional 32-bit value associated with the key stroke.
Return Values
This function has no return value. Res
Although keybd_event passes an OEM-dependent hardware scan code to the system, applications should not use the scan code. The system converts scan codes to virtual-key codes internally and clears the up/down bit in the scan code before passing it to applications. An application can simulate a press of the PRINTSCREEN key in order to obtain a screen snapshot and save it to the clipboard. To do this, call keybd_event with the bVk parameter set to VK_SNAPSHOT, and the bScan parameter set to 0 for a snapshot of the full screen or set bScan to 1 for a snapshot of the active window. Windows CE: Windows CE supports an additional flag for the dwFlags parameter. Use the KEYEVENTF_SILENT flag to simulate a keystroke without making a clicking sound.Windows CE does not support the KEYEVENTF_EXTENDEDKEY flag.QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winuser.h.
Import Library: Use user32.lib.See Also
Keyboard Input Overview, Keyboard Input Functions, GetAsyncKeyState, GetKeyState, MapVirtualKey, SetKeyboardState
具体参数我也忘了,我在网吧里面.. 反正大体上是这样了...
keybd_event(VK_DIVIDE,0,0,0); // 模拟按下:
keybd_event(VK_DIVIDE,0,KEYEVENTF_KEYUP,0); // 模拟松开:
keybd_event(VK_SHIFT,0,KEYEVENTF_KEYUP,0); // 模拟松开shift给分!
其实，很多时候，不一定使用这么麻烦的函数的。。比方说，sendmessage基本上就可以高定一切基于窗口的输入信息