How to center an NSView

The first thing that stands out about your comment is that you're saying the app isn't fullscreen; it should open fullscreen by default, and not have a menubar. I'd double check stuff if you renamed the project, to see if you didn't break something between the xib/nib and the project. Does the project open with a menubar in Lion without it being edited any?

I tried building using your code in XCode 4.3 and found that whilst the default project worked just fine, including your additional code resulted in a full screen, but one wherein the QCView composition rendered over to the bottom left and sadly vanished within a couple of seconds.

//
//  AppController.m
//  CMQCBackdrop
//
//  Created by Christopher Wright on 4/23/08.
//  Copyright 2008 Christopher Wright. All rights reserved.
//
 
#import "AppController.h"
#import <OpenGL/CGLMacro.h>
 
@implementation AppController
 
- (void) applicationWillFinishLaunching:(NSNotification*)notification
{
   NSScreen *screen = [[NSScreen screens] lastObject];
   NSRect winFrame = [screen frame];
 
    [visWindow setFrame: winFrame display: YES animate: NO];
   [visWindow setLevel: NSScreenSaverWindowLevel];
 
   [visView loadCompositionFromFile:
    [Bad link];
   [visView startRendering];
 
 
 
   // hide the cursor
   //CGDisplayHideCursor (kCGDirectMainDisplay);
}
 
@end

-- just works.

Are you getting the display problems you report above if you run this code instead of the slightly different code you have posted, I wonder?

Ok So I've taken a fresh copy of the default QCFullscreen code - http://kineme.net/wiki/SimpleFullscreenQCApp

I'm running Lion 10.7.3 and using xcode 4.3 and it won't build due to the following error

"The run destination My Mac 64-bit is not valid for Running the scheme 'QCFullscreen'."

So I've changed the architecture to "Standard (32/64-bit Intel)" and changed the base SDK to "Latest Mac OS X (Mac OS X 10.7)"

I've also changed the clear color of the myCompo composition to red to check if the composition is rendering full screen - When I run this I see the application run full screen in that there is no window frame but I can still see the menu bar - https://skitch.com/sheridan/8a4ia/fullscreen

So to fix this I've commented out the following line

    [visWindow setLevel: NSScreenSaverWindowLevel];

and added in to following code straight below it

    // Capture the main display
    if (CGDisplayCapture( kCGDirectMainDisplay ) != kCGErrorSuccess) {
        NSLog( @"Couldn't capture the main display!" );
        // Note: you'll probably want to display a proper error dialog here
    }
 
    int windowLevel = CGShieldingWindowLevel();
   [visWindow setLevel: windowLevel];

This results in the a fullscreen app but where the menu bar is replaced by a black line - kind of makes sense - what really confuses me is if I then plug in an external monitor (1920x1200) and then shut the lid of my macbook pro such that I only have one display i get the following - https://skitch.com/sheridan/8a4s1/fullscreen

If I remove the extra code I added I get similarly placed QC composition (which looks to be 1680x1050) but no backing and no space for the menu bar at the top - https://skitch.com/sheridan/8a4ad/fullscreen

If I add in my logging messages again

    NSLog(@"visView Bounds: %@", NSStringFromRect([visView bounds]));
    NSLog(@"visView Frame: %@", NSStringFromRect([visView frame]));

it tells me both the frame and bounds for the view are

4/05/12 11:16:27.679 AM QCFullscreen: visView Bounds: {{0, 0}, {1920, 1200}}
4/05/12 11:16:27.679 AM QCFullscreen: visView Frame: {{0, 0}, {1920, 1200}}

I've attached my altered code - am I using the wring functions for lion? or are there some weird changes in xcode 4.3?

Try changing the unsigned int for an NSUInteger on the styleMask definition in the Visualiser.m. Ran straight out of the build.

Nope still no go - if your using xcode 4.3 im guessing your on 10.7.3

When you say worked straight out of the build do you mean you changed my code and it worked or you were using the code in the zip at - http://kineme.net/wiki/SimpleFullscreenQCApp

Just wondering if your building against the 10.7 frameworks or not - do you get a complete fullscreen app or do you see the menubar? could you please attach a zip of your code

Cheers James

At your request .... the core contents of the project folder, including the composition I'm testing with.

I get a complete full screen application without any unwanted menu bar.

It doesn't work, same issues as my previous post. I tried it on a fresh install though and it did work which is a little odd as my normal install is only a month old...although I did run the migration assistant and then upgrade from xcode 4.2. The problem seems to be something in my user space library as things work not only on the fresh install but also in a fresh account - any ideas as to what settings I may need to blitz.

I tried removing ~/Library/Developer/ and no luck - it seems to be something outside of xcode as if I take the compiled app from the fresh install or new account it still doesn't run on my day to day account

Understood - you got it working on a fresh install, but on an updated / upgraded install, with some other frameworks obstructing, no dice.

Any Console messages that might help clarify what is the problematic item?

No nothing in the console - I've assumed that frameworks are system wide though, and as it works on a different user account on the same system this would indicate that its not framework related and something else in my user ~/Library no?

I have a few programs installed that I thought may be the cause of the problem (air display, gfxcardstatus) but I've removed these and still no dice

I just looked in ~/Library and found a frameworks folder with three items in it but I've removed them and it also didn't help

I think I'm going to have to slowly try removing large chunks of my library folder until I can narrow down which area is causing it