I have an application where sometimes I need to go full screen. While in full
screen mode, I need to change the presentation mode so that sometimes the
menubar and toolbar are autohiding, and sometimes just not shown. Then when I
exit full screen, I reset the values to what they were before I started.
This works fine, except that when I return from full screen, the minimize
button is disabled on the window.
So I thought I would record the styleMask of the window before going full
screen, and then restore it afterwards.
When I ask for the window's styleMask, I get a value of 4111 which according to
the documentation would be an impossible value. If I just use that value for
setStyleMask: later in my program, my minimize button is still disabled.
I'm suspecting that Apple must be using the value for other things too, so I
thought I would use:
oldStyleMask = [window styleMask];
oldStyleMask = oldStyleMask &
(NSTitledWindowMask|NSClosableWindowMask|NSMiniaturizableWindowMask|NSResizableWindowMask|NSTexturedBackgroundWindowMask);
… do stuff …
[window setStyleMask:oldStyleMask];
Now when I use the & statement, I get a value of 15, which matches how the
window looks, but setting the style mask back to that value still doesn't
enable the minimize button.
I looked around and found a suggestion on stack overflow
http://stackoverflow.com/questions/7888308/nswindow-loses-miniaturize-button-on-lion,
but the idea there would only be applicable if I was keeping the same
application presentation options for the whole time I'm in full screen, which
is not the case.
I have the same problem on 10.6, and the proposed workaround linked off stack
overflow doesn't work - presumably because I change the application
presentation options.
I even thought I would try to be smart and override styleMask with the
following:
- (NSUInteger)styleMask {
return [super styleMask]|NSMiniaturizableWindowMask;
}
But even that wouldn't enable the miniaturize button!
Does anyone know of a workaround for this?
TIA
Gideon
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