Question

I’ve seen a ton of posts about adding a control to a NSWindow to give it the ability to go into full-screen — both through code and Interface Builder settings. What I’m looking for is when the application is launched, it opens in full-screen by default.

Answer 1

Set your main window’s delegate. You can use your app delegate as the window delegate if you don’t already have a window delegate. Then add this method to the window delegate:

- (void)windowDidBecomeMain:(NSNotification *)notification
{
    static BOOL shouldGoFullScreen = YES;
    if (shouldGoFullScreen) {
        if (!([self.window styleMask] & NSFullScreenWindowMask))
            [self.window toggleFullScreen:nil];
        shouldGoFullScreen = NO;
    }
}