private void ImageProcessingManager_ProcessStateChanged(object sender, ProcessStateChangedEventArgs e)
{
ProcessProgressForm processProgressForm = userStateToProcessProgressForm[e.UserState];
processProgressForm.ChangeTaskState(e.Item, e.State);
}
protected virtual void OnProcessStateChanged(ProcessStateChangedEventArgs e)
{
if (ProcessStateChanged != null)
{
ProcessStateChanged(this, e);
}
}