Change window level

advanced
#1

Hi all,

I’m not sure if I’m writing in the right place, but I’ll give it a try…

I need to change the windows level for an OF application ( macosx - of 0.6 ).

The app has to launch in fullscreen at the same level than would have a screensaver, because sometimes the application should launch when an other app is already in fullscreen mode ( yes, It’s kind of freak ).

I’m not really aware of Cocoa stuff, but I understand I would need to set the windows level as NSScreenSaverWindowLevel.

Anyone knows how to achieve this ?

Help would be really appreciated,

M

#2

I just tried this (actually the opposite direction), based on this:

http://boinc.berkeley.edu/svn/branches/-…-cglutfix.m

my code is here:

http://www.openframeworks.cc/files/glut-…-Change.zip

(I am lowering the window level, but you can raise it, as in the above .m code). you can modify #define RealSaverLevel, to the higher level in the above .m code (which is for screensavers).

it required the appKit framework added to OF…

hope that helps!
zach

#3

Hi Zach!

That piece of code just saved my life!

I had really a lot of problems ( flickering, no focus etc… )…

How could I know that

// The standard ScreenSaverView class actually sets the window
// level to 2002, not the 1000 defined by NSScreenSaverWindowLevel
// and kCGScreenSaverWindowLevel

Never read that in the cocoa dev docs !

Thanks you a lot! Totally awesome.

M