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Is there an onClose event in OpenFL?

I am using a library that needs to be cleaned up during logout (i.e. close the socket so it doesn't hang until some timeout) in an OpenFL 2.2.1 application.

However, I have not been able to find any event that is triggered when I close the window using Alt+F4

or the window close button.

How can I detect that the application is shutting down to clean up my resources?

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2 answers


To answer the question about openfl-next

, there is an event lime.app.Application.onExit

that it inherits from lime.app.Module

. The link Application

is stored in the instance field openfl.display.Stage.application

.

So, the variant with several versions of the function will be as follows:

static function setExitHandler(func:Void->Void):Void {
    #if openfl_legacy
    openfl.Lib.current.stage.onQuit = function() {
        func();
        openfl.Lib.close();
    };
    #else
    openfl.Lib.current.stage.application.onExit.add(function(code) {
        func();
    });
    #end
}


And then you just

setExitHandler(function() {
    trace("Quit!");
});
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Part of the answer would be disabling to legacy OpenFL (with -Dopenfl-legacy

or <haxedef name="openfl-legacy" />

).

This trick forces the compiler to use the legacy API that allows Lib.stage.onQuit

.

public static function main():Void
{
    // …
    Lib.stage.onQuit = onClose;
    // …
}

private static function onClose()
{
    // …
    // Cleanup of opened resources
    // …
    Lib.close();
}


Be sure to call Lib.close()

, otherwise your window won't close anymore!

However, this doesn't answer my question for a new one openfl-next

.

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