/// <summary>
/// Begins to track the mouse to detect mouse movement to start deferred drag and drop operations
/// </summary>
private void StartOrTrackMouseToStart()
{
if (_definition is ImmediateDragDefinition)
{
// enqueue in UI thread to make sure the whole fluent setup has been executed before.
SourceControl.BeginInvoke(() => Start(_definition.Effect));
}
else
{
_initialPosition = Control.MousePosition;
SourceControl.MouseMove += SourceControl_MouseMove;
SourceControl.MouseUp += SourceControl_MouseUp;
}
}
