On Sep 20, 2007, at 5:11 PM, Stan wrote:
> void do_exit()
> {
> // What is the condition of 'this' here?
> // Has it been deleted? Does it matter if
> // we got here because the user pressed the 'x'
> // on the window border?
> }
No, there is no special processing here. This is just a regular
callback which happens to default to hiding the window, so a rapidly
prototyped application can exit by clicking the "Close" button or by
pressing ESC.
If you simply return, nothing will happen.
Do not delete the widget in a callback. If you must delete a widget
in a callback, use Fl::delete_widget(self) instead.
If you want to quit the application, you can either simply call exit
() or _exit() from within the callback, and C++ together with the OS
will release all of you standard resources.
If you want to quit your app by leaving the "run()" loop, you can
hide all windows, and Fl::run() will return control. To find all
windows, use Fl::first_window and Fl::next_window
Matthias
----
http://robowerk.com/
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