private async void FormViewer_Shown(object sender, EventArgs e) { ToolStripMenuItem defaultDevice = null; foreach (var item in Program.GetDevices()) { var _item = new ToolStripMenuItem(item.Value) { Tag = item.Key }; _item.Click += Item_Click; _item.SetImage(MaterialDesign.Instance, MaterialDesign.IconType.videocam, 48, toolStripMenu.BackColor); toolStripButtonDevices.DropDownItems.Add(_item); if (Properties.Settings.Default.AutoStart && item.Key == Properties.Settings.Default.DefaultDevice) { defaultDevice = _item; } } labelPreview.Visible = defaultDevice == null; if (defaultDevice != null) { defaultDevice.PerformClick(); } if (Properties.Settings.Default.CheckForUpdates) { await GitHubInfo.CheckForUpdateAsync(); } }