private void ShowQueueForm()
{
// if queueForm is never been showed or is closed, generate it again
if (queueForm == null || queueForm.IsDisposed)
{
queueForm = new QueueForm(this);
}
queueForm.Show();
if (queueForm.WindowState == FormWindowState.Minimized)
{
queueForm.WindowState = queueForm.GetLastWindowState();
}
queueForm.BringToFront();
System.Windows.Forms.Application.DoEvents();
}
