private void settingsToolStripMenuItem1_Click(object sender, EventArgs e)
 {
     if (settingsModule == null || settingsModule.IsDisposed)
     {
         settingsModule = new SettingsModule();
         settingsModule.Show();
     }
     else
     {
         if (settingsModule.WindowState == FormWindowState.Minimized)
         {
             settingsModule.WindowState = FormWindowState.Maximized;
         }
         settingsModule.Activate();
     }
 }