On Thu, Feb 14, 2013 at 6:51 AM, Justin Rosander <[email protected]> wrote: > Hi there, > > I'm trying to put together a midi controller featuring faders that would be > assigned to different channels. In exploring the use of an array to make a > window full of sliders, I put the following together: > > for(x = 0; x < 12; x++) { > > //add slider > sl[x] = elm_slider_add(win); > > elm_slider_horizontal_set(sl[x], EINA_FALSE); > //pack at the end of the box > elm_box_pack_end(box, sl[x]); > evas_object_show(sl[x]); > //callback to function returning value > evas_object_smart_callback_add(sl[x], "changed", _changed_cb, NULL); > } Replace the NULL in the callback_add with a pointer to data. It will be available as the first argument in the callback funcion as a void * . If you don't need to reference any other data in the cb, you can pass &sl[x]. Also, the second arg. in the cb is the first arg. in the callback_add(). > > What I'm trying to figure out is how I would differentiate one slider from > another in a callback function? For instance, when I move, say, "slider 1" > as opposed to "slider 2". > > Any input is appreciated. > > Justin > ------------------------------------------------------------------------------ > Free Next-Gen Firewall Hardware Offer > Buy your Sophos next-gen firewall before the end March 2013 > and get the hardware for free! Learn more. > http://p.sf.net/sfu/sophos-d2d-feb > _______________________________________________ > enlightenment-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/enlightenment-users
------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ enlightenment-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/enlightenment-users
