GSource callback

Krzysztof <kj@xxxxxxxxxxxx> · Wed, 30 Mar 2016 22:58:50 +0200



    The documentation for Glib function g_source_set_callback ()
    tells this:

    "The exact type of func
    depends on the type of source; ie. you
    should not count on func
    being called with data as
    its first
    parameter."

    What does it exactly mean? The callback function has the type: 

    gboolean (*GSourceFunc) (gpointer user_data);


    So what should I expect as a parameter when glib calls my callback
    function with a gpointer data. How can I find my
    data?

    -- 
Regards
Krzysztof J.

  
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