How to know if a NSWindow is fullscreen in Mac OS X Lion?

user_656488 0
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I guess I should check if [NSApplication presentationOptions] contains NSFullScreenModeApplicationPresentationOptions, but how do I achieve that?

EDIT: using [NSApplication presentationOptions] doesn't work as in my document-based app there might be some documents in fullscreen and others not. I'm now looking for another solution. I'm wondering why there isn't a property called [NSWindow isFullscreen] or something like that.

nsapplication osx-lion nswindow fullscreen cocoa
4 Answers

The way I handled it in pre-10.7 (where neither NSApplicationPresentationFullScreen nor NSFullScreenWindowMask was available) was to check

if ([mainWindow frame].size.height == [[mainWindow screen] frame].size.height)
{
    // window is fullscreen
}

And this piece of really old code seem to still work not only on "Lion" but also on today's - at the time of writing 10.14.x - OS.

user_24280250
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