IupGetAllFunctions
Returns the well-known function-namespace names that IUP dispatches itself, plus any extra names the application has registered via IupSetFunction or IupSetCallback on the global namespace.
The well-known set covers ENTRY_POINT,
IDLE_ACTION, and the global input family
(GLOBALKEYPRESS_CB, GLOBALBUTTON_CB,
GLOBALMOTION_CB, GLOBALWHEEL_CB). They are
listed even when no callback has been bound; pair this with IupGetFunction to discover which ones
are currently bound.
Parameters/Return
int IupGetAllFunctions(char** names, int n);names: array receiving the names. Each entry points
to an internal string. Pass NULL to query the count.
n: maximum number of names the array can receive.
Returns: number of names written, or the total count
if names is NULL or n is 0/-1.
Internal names (those starting with _IUP) are
skipped.