How to detect if keystroke was emulated by keybd_event or SendInput?

Question

是否可以在我的自定义 Win32 控件中检测到，在处理WM_CHAR或WM_KEYDOWN消息时，击键是来自实际键盘，还是通过调用SendInput或keybd_event类型函数来模拟？

Answer 1

You could check if the LLKHF_INJECTED flag is set in a low-level hook. I don't think you can tell just by looking at the LPARAM.

Answer 2

Starting in Windows 8, you can use the GetCurrentInputMessageSource() function in your message handler. You can check if the reported originId is IMO_HARDWARE , IMO_INJECTED , or IMO_SYSTEM .