gtk:uri-launcher-launch (launcher parent cancellable func)

launcher -- a gtk:uri-launcher object
parent -- a parent gtk:window widget
cancellable -- a g:cancellable object to cancel the operation
func -- a g:async-ready-callback callback function to call when the operation is complete

Launch an application to open the URI. This may present an app chooser dialog to the user.

The callback will be called when the operation is completed. It should call the gtk:uri-launcher-launch-finish function to obtain the result.

Since 4.10