/// <summary>
/// Single Int KeyCode hex or ascii
/// </summary>
///
///
public static void SendKey(int scanCode, bool press)
{
KEYBOARD_INPUT[] input = new KEYBOARD_INPUT[1];
input[0] = new KEYBOARD_INPUT();
input[0].type = INPUT_KEYBOARD;
input[0].flags = KEYEVENTF_UNICODE;
input[0].time = 0;
input[0].wVk = 0;
input[0].dwExtraInfo = IntPtr.Zero;
if ((scanCode & 0xFF00) == 0xE000)
{ // extended key?
input[0].flags |= KEY_EXTENDED;
}
if (press)
{ // press?
input[0].scanCode = (ushort)(scanCode & 0xFF);
}
else
{ // release?
input[0].scanCode = (ushort)scanCode;
input[0].flags |= KEY_UP;
}
uint result = SendInput(1, input, Marshal.SizeOf(input[0]));
if (result != 1)
{
throw new Exception("Could not send key: " + scanCode);
}
}
/// <summary>
/// String of 1 to many letters, words, etc example
/// SendKeys("HelloWorld");
/// this does a Press and Release
/// </summary>
///
public static void SendKeys(string sKeys)
{
Byte[] aKeys = UTF8Encoding.ASCII.GetBytes(sKeys);
int iLen = aKeys.Length;
ushort scanCode = 0;
for (int x = 0; x < iLen; x++)
{
//2 elements for each key, one for press one for Release
scanCode = aKeys[x];
KEYBOARD_INPUT[] input = new KEYBOARD_INPUT[2];
input[0] = new KEYBOARD_INPUT();
input[0].type = INPUT_KEYBOARD;
input[0].flags = KEYEVENTF_UNICODE;
input[1] = new KEYBOARD_INPUT();
input[1].type = INPUT_KEYBOARD;
input[1].flags = KEYEVENTF_UNICODE;
if ((scanCode & 0xFF00) == 0xE000)
{ // extended key?
input[0].flags |= KEY_EXTENDED;
input[1].flags |= KEY_EXTENDED;
}
//input[0] for key press
input[0].scanCode = (ushort)(scanCode & 0xFF);
//input[1] for KeyReleasse
input[1].scanCode = (ushort)scanCode;
input[1].flags |= KEY_UP;
//call sendinput once for both keys
//result =
SendInput(2, input, Marshal.SizeOf(input[0]));
}
}
