launch

Description:

public async bool launch (Window? parent, Cancellable? cancellable) throws Error

Launch an application to open the file.

This may present an app chooser dialog to the user.

The callback will be called when the operation is completed. It should call [method@Gtk.FileLauncher.launch_finish] to obtain the result.

this	a `GtkFileLauncher`
parent	the parent `GtkWindow`
cancellable	a `GCancellable` to cancel the operation
callback	a callback to call when the operation is complete
user_data	data to pass to `callback`