/// <summary>
/// Function to bind the input device.
/// </summary>
protected override void BindDevice()
{
if ((Exclusive) && (!_isExclusive))
{
_lastPosition = Cursor.Position;
UpdateCursorPosition();
_isExclusive = true;
}
if ((!Exclusive) && (_isExclusive))
{
_isExclusive = false;
Position = BoundControl.PointToClient(Point.Truncate(_lastPosition));
}
if (_isBound)
{
return;
}
UnbindDevice();
if (_messageFilter != null)
{
_messageFilter.RawInputPointingDeviceData += GetRawData;
}
_device.UsagePage = HIDUsagePage.Generic;
_device.Usage = (ushort)HIDUsage.Mouse;
_device.Flags = RawInputDeviceFlags.None;
_device.WindowHandle = BoundControl.Handle;
// Enable background access.
if (AllowBackground)
{
_device.WindowHandle = BoundControl.Handle;
_device.Flags |= RawInputDeviceFlags.InputSink;
}
// Attempt to register the device.
if (!Win32API.RegisterRawInputDevices(_device))
{
throw new GorgonException(GorgonResult.DriverError, Resources.GORINP_RAW_CANNOT_BIND_POINTING_DEVICE);
}
if (!Exclusive)
{
BoundControl.MouseLeave += BoundControl_MouseLeave;
}
_isBound = true;
}
/// <summary>
/// Function to retrieve and parse the raw pointing device data.
/// </summary>
/// <param name="sender">Sender of the event.</param>
/// <param name="e">Event data to examine.</param>
private void GetRawData(object sender, RawInputPointingDeviceEventArgs e)
{
if ((BoundControl == null) || (BoundControl.Disposing))
{
return;
}
if ((_deviceHandle != IntPtr.Zero) && (_deviceHandle != e.Handle))
{
return;
}
if ((Exclusive) && (!Acquired))
{
// Attempt to recapture.
if (BoundControl.Focused)
{
Acquired = true;
}
else
{
return;
}
}
// Do nothing if we're outside and we have exclusive mode turned off.
if (!Exclusive)
{
Point clientPosition = BoundControl.PointToClient(Cursor.Position);
if (!WindowRectangle.Contains(clientPosition))
{
_outside = true;
return;
}
if (_outside)
{
// If we're back inside place position at the entry point.
_outside = false;
Position = clientPosition;
}
}
// Get wheel data.
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.MouseWheel) != 0)
{
OnPointingDeviceWheelMove((short)e.PointingDeviceData.ButtonData);
}
// If we're outside of the delay, then restart double click cycle.
if (_doubleClicker.Milliseconds > DoubleClickDelay)
{
_doubleClicker.Reset();
_clickCount = 0;
}
// Get button data.
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.LeftDown) != 0)
{
BeginDoubleClick(PointingDeviceButtons.Left);
OnPointingDeviceDown(PointingDeviceButtons.Left);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.RightDown) != 0)
{
BeginDoubleClick(PointingDeviceButtons.Right);
OnPointingDeviceDown(PointingDeviceButtons.Right);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.MiddleDown) != 0)
{
BeginDoubleClick(PointingDeviceButtons.Middle);
OnPointingDeviceDown(PointingDeviceButtons.Middle);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.Button4Down) != 0)
{
BeginDoubleClick(PointingDeviceButtons.Button4);
OnPointingDeviceDown(PointingDeviceButtons.Button4);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.Button5Down) != 0)
{
BeginDoubleClick(PointingDeviceButtons.Button5);
OnPointingDeviceDown(PointingDeviceButtons.Button5);
}
// If we have an 'up' event on the buttons, remove the flag.
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.LeftUp) != 0)
{
if (IsDoubleClick(PointingDeviceButtons.Left))
{
_clickCount += 1;
}
else
{
_doubleClicker.Reset();
_clickCount = 0;
}
OnPointingDeviceUp(PointingDeviceButtons.Left, _clickCount);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.RightUp) != 0)
{
if (IsDoubleClick(PointingDeviceButtons.Right))
{
_clickCount += 1;
}
else
{
_doubleClicker.Reset();
_clickCount = 0;
}
OnPointingDeviceUp(PointingDeviceButtons.Right, _clickCount);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.MiddleUp) != 0)
{
if (IsDoubleClick(PointingDeviceButtons.Middle))
{
_clickCount += 1;
}
else
{
_doubleClicker.Reset();
_clickCount = 0;
}
OnPointingDeviceUp(PointingDeviceButtons.Middle, _clickCount);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.Button4Up) != 0)
{
if (IsDoubleClick(PointingDeviceButtons.Button4))
{
_clickCount += 1;
}
else
{
_doubleClicker.Reset();
_clickCount = 0;
}
OnPointingDeviceUp(PointingDeviceButtons.Button4, _clickCount);
}
if ((e.PointingDeviceData.ButtonFlags & RawMouseButtons.Button5Up) != 0)
{
if (IsDoubleClick(PointingDeviceButtons.Button5))
{
_clickCount += 1;
}
else
{
_doubleClicker.Reset();
_clickCount = 0;
}
OnPointingDeviceUp(PointingDeviceButtons.Button5, _clickCount);
}
// Fire events.
RelativePosition = new PointF(RelativePosition.X + e.PointingDeviceData.LastX, RelativePosition.Y + e.PointingDeviceData.LastY);
OnPointingDeviceMove(new PointF(Position.X + e.PointingDeviceData.LastX, Position.Y + e.PointingDeviceData.LastY),
false);
UpdateCursorPosition();
}