public void sendCtrlCharacter(char c)
{
keybd_event((byte)VKeys.VK_CONTROL, 0, 0, 0);
Thread.Sleep(100);
PostMessage(appWin, WM_KEYDOWN, (IntPtr)VkKeyScan(c), (IntPtr)keytranslator[c.ToString().ToLower()[0]]);
Thread.Sleep(300);
keybd_event((byte)VKeys.VK_CONTROL, 0, 0x2, 0);
}