internal extern static void keybd_event(byte bVk, byte bScan, KeyEventFFlags dwFlags, int dwExtraInfo);
internal extern static void keybd_event(byte bVk, byte bScan, KeyEventFFlags dwFlags, int dwExtraInfo);
internal extern static void keybd_event(byte bVk, byte bScan, KeyEventFFlags dwFlags, int dwExtraInfo);
internal extern static void keybd_event(byte bVk, byte bScan, KeyEventFFlags dwFlags, int dwExtraInfo);