pygst - glimagesink callback
Question: I'm trying to use 'glimagesink' element with python. The element (which is
GObject inside) has `client-draw-callback` property which should (in C++ at
least) contain a function (`bool func(uint t, uint w, uint h)`) pointer. I've
tried `element.set_property('client-draw-callback', myfunc)`, and creating
function pointer with ctypes, but every time it says, `TypeError: could not
convert argument to correct param type`

I could find any docs on using glimagesink or glfilterapp in python ):

The working c++ code:

    
    
    gboolean drawCallback (GLuint texture, GLuint width, GLuint height)
    
    { ... } 
    
    GstElement* glimagesink = gst_element_factory_make ("glimagesink", "glimagesink0");
    g_object_set(G_OBJECT(glimagesink), "client-draw-callback", drawCallback, NULL)
    


Answer: This isn't the problem you're having (as far as I can tell) but it's important
to note that this API has changed recently, now it expects a void pointer of
data which allows you to pass in a handle to user_data (or NULL) when you
connect your callback.

    
    
    gboolean drawCallback (GLuint texture, GLuint width, GLuint height, gpointer data)
    

