//methods controls
private void ActionDevice(Func <DeviceCapture, DeviceState> task)
{
int key;
if (list_view_devices.SelectedItems.Count > 0)
{
var item = list_view_devices.SelectedItems[0];
key = (int)item.Tag;
item.ImageIndex = (int)task(DeviceController.GetDevice(key));
}
else
{
key = DeviceController.selected_device;
DeviceController.ChangeIconState(key, task(DeviceController.GetDevice(key)));
}
EnableDeviceButtons();
}