macOS Center Window If There Is No setFrameAutosaveName?

[Darkroom]

in my mainWindow.m file, i'm trying to center the mainWindow if it's the first time the app is launched. if it's not the first time, than setFrameAutosaveName... shouldn't this code work??:

- (void)awakeFromNib
	{
	if (![[NSUserDefaults standardUserDefaults] objectForKey: @"MAINWINDOWPositionHeightWidth"])
		{
		[self center];
		NSLog (@"First App Launch, Window Is Centered");
		}
		else
		{
		[self setFrameAutosaveName:@"MAINWINDOWPositionHeightWidth"];
                NSLog (@"Window Is In The Same State The User Left It");
		}
	}

 

[Darkroom]

whatever... i'll just center it manually in IB... but i think it's kinda ghetto that Apple doesn't include a "Center Window On Main Screen" option under Content Size & Position, especially since they do have a "Use Current" option... seems kinda dumb to me...

 

[Darkroom]

humm... so i just realized that my app's main window is way off on smaller screens if i center it manually... does anyone have an answer to my problem? seems like it shouldn't be too complex... unless i'm doing something ultra dumb, in which case i would appreciate if you'd please tell me.

so what's wrong with this code?

- (void)awakeFromNib
	{
	NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
	if (![standardUserDefaults objectForKey:@"MAINWINDOWPositionHeightWidth"])
		{
		[self center];
		}
		else
		{
		[self setFrameAutosaveName:@"MAINWINDOWPositionHeightWidth"];
		}
	}

[EDIT] sorry, i have it working now... but i swear i did this already at first and it didn't work... oh well... this is what works:

- (void)awakeFromNib
	{
	[self center];
	[self setFrameAutosaveName:@"MAINWINDOWPositionHeightWidth"];
	}