public string missing_uri_sink_installer_detail_new (string protocol)
This function is mainly for applications that call external plugin installation mechanisms using one of the two above-mentioned functions in the case where the application knows exactly what kind of plugin it is missing.
the URI protocol the missing source needs to implement, e.g. "http" or "mms"
a newly-allocated detail string, or NULL on error. Free string with g_free when not needed any longer.