/// <summary>
/// Decoces the message.
/// </summary>
/// <param name="m">The Message.</param>
private void DecodeMessage(Message m)
{
int inputCount = m.WParam.ToInt32();
var touchInput = new TouchInput[inputCount];
if (!TouchInterops.GetTouchInputInfo(m.LParam, inputCount, touchInput, Marshal.SizeOf(touchInput)))
{
_logger.Warn("Error while extracting TouchInputInfo.");
return;
}
for (int i = 0; i < inputCount; i++)
{
TouchInput touchInfo = touchInput[i];
var touchMode = TouchMode.Down;
if ((touchInfo.dwFlags & (int)TouchFlags.TOUCHEVENTF_DOWN) != 0)
{
touchMode = TouchMode.Down;
}
else if ((touchInfo.dwFlags & (int)TouchFlags.TOUCHEVENTF_UP) != 0)
{
touchMode = TouchMode.Up;
}
else if ((touchInfo.dwFlags & (int)TouchFlags.TOUCHEVENTF_MOVE) != 0)
{
touchMode = TouchMode.Move;
}
var touch = new Input.Touch(touchInfo.dwID,
new Vector2(touchInfo.cxContact / 100f, touchInfo.cyContact / 100f),
new Vector2(touchInfo.x / 100f, touchInfo.y / 100f), new DateTime(0, 0, 0, 0, 0, 0, touchInfo.dwTime),
touchMode);
_touches.Add(touch);
if (!TouchInterops.CloseTouchInputHandle(m.LParam))
{
_logger.Warn("Unable to close TouchInputHandle.");
}
}
}
/// <summary>
/// Initializes the input.
/// </summary>
public void Initialize()
{
IntPtr handle = SGL.Components.Get <RenderTarget>().Handle;
if (!TouchInterops.RegisterTouchWindow(handle, 0))
{
throw new InvalidOperationException("Unable to register TouchWindow.");
}
IsAvailable = true;
var msgFilter = new MessageFilter(handle)
{
Filter = TouchInterops.WM_TOUCH
};
msgFilter.MessageArrived += MessageArrived;
_handle = handle;
}