Question

I noticed that in Windows, if you maximize a window you can not resize it until you un-maximized it again. This appears to be a normal behaviour, so I would like to remove my resize gripper when the window is maximised.

At the moment I can’t find a property to detect if a window is maximized, and although I could add a boolean in my controller, it wouldn’t necessarily catch requests to maximize from the OS.

So if you know of a reliable way to test if a window is maximized please let me know.

On a related note, I am using custom chrome, and when I maximize a window it overlaps the windows task bar. I can think of hacks to detect available screen size (using a transparent system chrome window), but it would be good to know of a better method.

Thanks

Rob

Answer 1

I have figured out how this can best be done thanks to some pointers from TheBrain.

Firstly you need to watch for resize events to the window your want to control:

NativeApplication.nativeApplication.activeWindow.addEventListener(NativeWindowBoundsEvent.RESIZE, onWindowResize);

Then handle that event to decide if the window is maximised or not:

public function onWindowResize(event:NativeWindowBoundsEvent):void
{
    if (event.afterBounds.height >= Screen.mainScreen.visibleBounds.height && event.afterBounds.width >= Screen.mainScreen.visibleBounds.width)
        isMaximised = true;
    else
        isMaximised = false;
}

You then need to catch or create your own maximize button, and when clicked perform the following code:

            if (isMaximised)
            {
                var bounds:Rectangle = Screen.mainScreen.visibleBounds;
                NativeApplication.nativeApplication.activeWindow.bounds = bounds;
            }
            else
            {
                NativeApplication.nativeApplication.activeWindow.bounds = new Rectangle(100, 100, 500, 600);
            }

You can modify the bounds to over maximize (which is handy for custom chrome windows with shadows), and you can also set the application to reset to a default size if the maximize button is clicked when it’s already maximized (or do nothing).

I had issues about when to assign the window resize listner, and ended up removing and adding it every time the maximize button was clicked. It’s a bit of overkill, but not too bad.