g_object_replace_qdata

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
gboolean
g_object_replace_qdata
(,
GQuark quark
,
gpointer oldval
,
gpointer newval
,
GDestroyNotify destroy
,
GDestroyNotify* old_destroy
)

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