Yeah, I don't know if there's a logical reason why the "Custom View" object in IB is treated specially or if it's a historical artifact.
--Andy On Oct 5, 2011, at 2:51 AM, Dong Feng wrote: > Thank you, Andy. > > But slightly wired that NSOpenGLView isn't considered as a custom view, > considering it itself is a subclass of NSView. Anyway at least I can count on > the way it works. :-) > > > > 2011/10/5 Andy Lee <ag...@mac.com> > See "The Object Loading Process": > > <http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/LoadingResources/CocoaNibs/CocoaNibs.html#//apple_ref/doc/uid/10000051i-CH4-SW19> > > a. Standard Interface Builder objects (and custom subclasses of those > > objects) receive an initWithCoder: message. > [...] > > b. Custom views in Mac OS X receive an initWithFrame: message. > > Your Method 1 corresponds to the "a" case. Your Method 2 corresponds to the > "b" case. > > --Andy > > > On Oct 5, 2011, at 1:32 AM, Dong Feng wrote: > > > I have a subclass of NSOpenGLView which named POpenGLView. I tried two ways > > to use it in IB: > > > > Method 1: > > To create an OpenGL view in IB directly, and set its class type > > "POpenGLView". > > > > Method 2: > > To create a NSView in IB, and set its class type "POpenGLView". > > > > The most significant difference between the two ways is > > - in Method 2, initWithFrame: is invoked. > > - in Method 1, initWithCoder: is invoked. > > > > I checked Apple examples and found this one: > > http://developer.apple.com/library/mac/#samplecode/GLEssentials/Listings/main_m.html#//apple_ref/doc/uid/DTS40010104-main_m-DontLinkElementID_31 > > > > Apple's example takes Method 2 and relies on the behavior of invoking > > initWithFrame: . > > > > What's the rule of IB/XIB regarding picking instantiate method? > > > > Thanks, > > Dong > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
