[Openmcl-devel] NSView setWantsLayer undefined?

R. Matthew Emerson rme at clozure.com
Fri Jul 3 10:17:13 PDT 2009

On Jul 3, 2009, at 12:16 PM, Neil Baylis wrote:

> It seems that the NSView function "setWantsLayer" is undefined.

I see that you're using a 32-bit lisp

#/setWantsLayer: is available on Mac OS X 10.5 and later.  For  
backward compatibility reasons, we supply Tiger-derived interface  
databases with the 32-bit ports, and those interfaces (obviously)  
don't contain the new-with-Leopard stuff.

I think it may be the case that Leopard-derived interfaces would still  
work (for some value of work) on Tiger systems, and I think we'd like  
to see Leopard interfaces for all Darwin ports in CCL 1.4.

(There's a ticket for this at http://trac.clozure.com/openmcl/ticket/481.)

Can you use the 64-bit lisp?  It uses Leopard interfaces, so those  
methods will be present.

If not, send me private mail, and I'll see about getting you Leopard  
interfaces for Cocoa for x8632.

> For example, I tried to call it on the view created in Ron's scribble
> application:
> (defun make-scribble-window ()
>   (let ((w (make-ns-window 300 300 "Scribble"))
>         (v (make-instance 'scribble-view)))
>     (#/setWantsLayer: v #$YES)
>     (#/setAlphaValue: v 0.5)
>     (#/setContentView: w v)
>     w))
> and got this for my trouble:
>> Error: Undefined function NEXTSTEP-FUNCTIONS:|setWantsLayer:|
> called with arguments (#<SCRIBBLE-VIEW <ScribbleView: 0x3b2ae80>
> (#x3B2AE80)> 1) .
>> While executing: MAKE-SCRIBBLE-WINDOW, in process Listener(6).
> Apropos reveals the following:
> CL-USER>  (apropos "setAlphaValue")
> CL-USER> (apropos "setWantsLayer")
> Any idea what's going on here?
> Neil
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