public void Cancel()
{
if (_capturedHandler != null)
{
_capturedHandler.Cancel();
_capturedHandler = null;
}
}
/// <summary>
/// Called by the framework to let <see cref="IMouseButtonHandler"/> perform any necessary cleanup
/// when capture is going to be forcibly released.
/// </summary>
/// <remarks>
/// <para>
/// The <see cref="ControlGraphic"/> implementation calls <see cref="IMouseButtonHandler.Cancel"/> on
/// the current handler or <see cref="Cancel"/> in decreasing order of priority.
/// </para>
/// </remarks>
void IMouseButtonHandler.Cancel()
{
if (_capturedHandler != null)
{
_capturedHandler.Cancel();
_capturedHandler = null;
}
try
{
this.Cancel();
}
finally
{
_isTracking = false;
_lastTrackedPosition = PointF.Empty;
}
}