The fullScreen is not functioning properly.

[ibaoyun]

During waitUntilReadyToShow, the fullScreen is set to true. However, when the window is restored using setFullScreen(false), it only displays the background color without any content and the taskbar icon also disappears. Additionally, calling windowManager.minimize(); has no effect either. The platform in use is Windows.

[Arvinth-Krishna]

Yes, I'm facing the same issue, when I switch from one display to another.

[humam-alBasha]

You can skip the issue until it is resolved .

const WindowOptions windowOptions = WindowOptions( size: Size(800, 600), center: true, backgroundColor: Colors.transparent, skipTaskbar: false, // titleBarStyle: TitleBarStyle.hidden, ); windowManager.waitUntilReadyToShow(windowOptions, () async { await windowManager.show(); await windowManager.focus(); await windowManager.setFullScreen(true); });

[humam-alBasha]

In the setFullScreen function , setSize is Future function need await
// (Windows) Force refresh the app so it 's back to the correct size
// (see GitHub issue #311)
if (Platform.isWindows) {
final size = await getSize();
setSize(size + const Offset(1, 1));
setSize(size);
}

[Markus43]

Just to add: There's a working plugin for windows here: https://pub.dev/packages/fullscreen_window - might be interesting to compare the code and evaluate the differences.