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Re: [Help-smalltalk] C Callbacks

From: Paolo Bonzini
Subject: Re: [Help-smalltalk] C Callbacks
Date: Tue, 20 May 2008 06:54:01 +0200
User-agent: Thunderbird (Macintosh/20080421)

Udo Schneider wrote:

is there any way to create regular C-Callbacks from within GST? I need some magic which provides a function pointer (to a block or method) which I can pass to a C func as callback.

As far as I can see the underlying libffi supports this using ffi_prep_closure_loc(). Is this already available in GST?

No, but callbacks are available without using libffi. You use functions in the vm_proxy, see the GLUT bindings in the opengl branch of my repository for a simple example.


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