Return exit code from `gio::Application::run()` from `main()`

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1065>

1 files changed, 4 insertions, 2 deletions

diff --git a/video/gtk4/examples/gtksink.rs b/video/gtk4/examples/gtksink.rs
index 160ef281..acaa8235 100644
--- a/video/gtk4/examples/gtksink.rs
+++ b/video/gtk4/examples/gtksink.rs
@@ -141,7 +141,7 @@ fn create_ui(app: &gtk::Application) {
     });
 }
 
-fn main() {
+fn main() -> glib::ExitCode {
     gst::init().unwrap();
     gtk::init().unwrap();
 
@@ -150,9 +150,11 @@ fn main() {
     let app = gtk::Application::new(None::<&str>, gio::ApplicationFlags::FLAGS_NONE);
 
     app.connect_activate(create_ui);
-    app.run();
+    let res = app.run();
 
     unsafe {
         gst::deinit();
     }
+
+    res
 }