mapping virtual key codes

mapVirtualKeySample.cs

static void Main(string[] args)
{
	uint[] keys = new uint[] { 56, 82, 79, 77, 72 };

	var scanCodes = keys.Select(_ => MapVirtualKey(_, MapVirtualKeyMapTypes.MAPVK_VSC_TO_VK));

	Console.WriteLine("mapped `{0}` to `{1}`", AsString(keys), AsString(scanCodes));

	Console.WriteLine("done");
	Console.ReadLine();
}
[DllImport("user32.dll")]
static extern uint MapVirtualKey(uint uCode, MapVirtualKeyMapTypes uMapType);
[DllImport("user32.dll")]
static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, uint dwExtraInfo);
public const int KEYEVENTF_EXTENDEDKEY = 0x01;
public const int KEYEVENTF_KEYUP = 0x02;

static string AsString(IEnumerable<uint> values)
{
	return string.Join(",", values);
}


/// <summary>
/// The set of valid MapTypes used in MapVirtualKey
/// </summary>
public enum MapVirtualKeyMapTypes : uint
{
	/// <summary>
	/// uCode is a virtual-key code and is translated into a scan code.
	/// If it is a virtual-key code that does not distinguish between left- and
	/// right-hand keys, the left-hand scan code is returned.
	/// If there is no translation, the function returns 0.
	/// </summary>
	MAPVK_VK_TO_VSC = 0x00,

	/// <summary>
	/// uCode is a scan code and is translated into a virtual-key code that
	/// does not distinguish between left- and right-hand keys. If there is no
	/// translation, the function returns 0.
	/// </summary>
	MAPVK_VSC_TO_VK = 0x01,

	/// <summary>
	/// uCode is a virtual-key code and is translated into an unshifted
	/// character value in the low-order word of the return value. Dead keys (diacritics)
	/// are indicated by setting the top bit of the return value. If there is no
	/// translation, the function returns 0.
	/// </summary>
	MAPVK_VK_TO_CHAR = 0x02,

	/// <summary>
	/// Windows NT/2000/XP: uCode is a scan code and is translated into a
	/// virtual-key code that distinguishes between left- and right-hand keys. If
	/// there is no translation, the function returns 0.
	/// </summary>
	MAPVK_VSC_TO_VK_EX = 0x03,

	/// <summary>
	/// Not currently documented
	/// </summary>
	MAPVK_VK_TO_VSC_EX = 0x04
}