Re: [Pyobjc-dev] getRectsBeingDrawn:count: signature help

[Ronald O. <ron...@ma...>]

On 14-apr-04, at 20:07, Ted Horst wrote:

>
> I would like to use getRectsBeingDrawn:count: in a python NSView 
> subclass,
> but I don't know how to declare the signature properly.  I tried:
>
> setSignatureForSelector('NSView', 'getRectsBeingDrawn:count:',
> 'v@:o^{_NSRect={_NSPoint=ff}{_NSSize=ff}}o^i')
>
> and I get a rect back, but the data is bogus (not surprisingly).  If I 
> use:
>
> setSignatureForSelector('NSView', 'getRectsBeingDrawn:count:',
> 'v@:o^^{_NSRect={_NSPoint=ff}{_NSSize=ff}}o^i')
>
> I get something back (a PyObjCPointer), but I don't know how to access 
> it.
>
> What is the proper signature and usage of a method like this (ie one 
> that
> returns a variable length list of struct through a pointer to a 
> pointer).

This cannot be solved in plain python, because the first argument is 
used to return an array of objects.

This is fixed in revision 1.6 of 
Modules/AppKit/_AppKitMapping_NSView.m, which should surface in a day 
or so. With that you can do::

    rects, count = myView.getRectsBeingDrawn_count()

Ronald
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