[cairo] Re: cairo_surface_*_user_data in language bindings

Daniel Keep daniel.keep.lists at gmail.com
Sat May 6 22:30:16 PDT 2006

Christian Biesinger wrote:
> Daniel Keep wrote:
>> get/set_user_data functions.
>> Basically: are these ever *required* for use of the api?  For example,
>> does one of the backends ask the programmer to place extra information
>> in a surface using these functions?
> They're called "user data" because they're for the user... (So the
> answer is "no")
>> If the answer is "no", then I can cheat and just implement them using
>> hashes and boxes (which also means I don't have to worry about the GC) :)
> Note http://cairographics.org/manual/bindings-surfaces.html which says:
> "The cairo_surface_set_user_data(), and cairo_surface_get_user_data()
> methods are provided for use in language bindings, and should not be
> directly exposed to applications."
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Aah, thanks very much :)  Hashes and boxes it is, then!

	-- Daniel


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