Not find 'SendKeyBoardMessage' and other APIs.

I don't know if it's very complete, but some of the ones I need to use I didn't find.

[DllImport("user32.dll")]
public static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, byte[] lParam);

References:
UserImporter.zip
https://pinvoke.net/
https://docs.microsoft.com/en-us/windows/win32/api/winuser/