pub type alljoyn_authlistener_requestcredentialsasync_ptr = Option<unsafe extern "system" fn(context: *const c_void, listener: alljoyn_authlistener, authmechanism: PCSTR, peername: PCSTR, authcount: u16, username: PCSTR, credmask: u16, authcontext: *mut c_void) -> QStatus>;
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Required features: "Win32_Devices_AllJoyn"