Immediately quits the application.

Upon return to the mainloop, run will return, calling only the 'shutdown' function before doing so.

The hold count is ignored. Take care if your code has called hold on the application and is therefore still expecting it to exist. (Note that you may have called hold indirectly, for example through gtk_application_add_window.)

The result of calling run again after it returns is unspecified.

Parameters:

this	a Application