Returns the callback associated to an event.
Icallback IupGetCallback(Ihandle* ih, const char *name); [in C] [There is no equivalent in Lua]
ih: identifier of the interface element.
name: attribute name of the callback.
Returns: the callback or NULL if there is none.
This function replaces the deprecated combination:
IupGetFunction(IupGetAttribute(ih, name))
If an event is associated using IupSetFunction and IupSetAttribute, the IupGetCallback also returns the correct callback. So old applications work normally.
IupSetCallback, IupGetFunction