parent window
the uri to show
timestamp from the event that triggered this call, or GDK_CURRENT_TIME
a gio.cancellable.Cancellable to cancel the launch
a callback to call when the action is complete
Deprecated: Use gtk.file_launcher.FileLauncher.launch or gtk.uri_launcher.UriLauncher.launch instead
This function launches the default application for showing a given uri.
The callback will be called when the launch is completed. It should call gtk.global.showUriFullFinish to obtain the result.
This is the recommended call to be used as it passes information necessary for sandbox helpers to parent their dialogs properly.