Re: C callback function
Re: C callback function
- Subject: Re: C callback function
- From: Bill Bumgarner <email@hidden>
- Date: Fri, 2 Mar 2007 22:43:57 -0800
On Mar 2, 2007, at 10:20 PM, Guy Meyer wrote:
I have got a C callback function within an object.
The said callback function needs access one of the objects variables.
If the said object was a singleton the solution was to create a
global variable outside the scope of the object accessible to both
the object and the c callback function.
However, as the object is instantiated multiple times the said
global variable can not be shared amongst all callback functions and
should be unique for each object.
Any suggestion will be appreciated.
Most callback functions have some kind of context argument, typically
a (void *). You would generally pass the object as the context
argument, thus allowing you to message the object in your callback
function.
b.bum
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