private void SendKeyUp(short key)
{
Input[] input = new Input[1];
input[0].type = INPUT.KEYBOARD;
input[0].ki.wVk = key;
input[0].ki.dwFlags = KeyboardConstaint.KEYEVENTF_KEYUP;
input[0].ki.time = Win32.GetTickCount();
if (Win32.SendInput((uint)input.Length, input, Marshal.SizeOf(input[0])) < input.Length)
{ throw new Win32Exception(Marshal.GetLastWin32Error()); }
}
internal static extern UInt32 SendInput(UInt32 nInputs, Input[] pInputs, Int32 cbSize);
[DllImport("user32.dll")]public static extern UInt32 SendInput(UInt32 nInputs, Input[] pInputs, int cbSize);