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    NPP URLNotify

    « Gecko Plugin API Reference « Plug-in Side Plug-in API


    Notifies the plug-in instance of the completion of a URL request.


    #include <npapi.h>
    void NPP_URLNotify(NPP         instance, 
                       const char* url,
                       NPReason    reason, 
                       void*       notifyData);


    The function has the following parameters:

    Pointer to the current plug-in instance.
    URL of the NPN_GetURLNotify() or NPN_PostURLNotify() request that has completed.
    Reason code for completion of request. Values:
    • NPRES_DONE (most common): Completed normally.
    • NPRES_USER_BREAK: User canceled stream directly by clicking the Stop button or indirectly by some action such as deleting the instance or initiating higher-priority network operations.
    • NPRES_NETWORK_ERR: Stream failed due to problems with network, disk I/O, lack of memory, or other problems.
    Plug-in-private value for associating a previous NPN_GetURLNotify() or NPN_PostURLNotify() request with a subsequent NPP_URLNotify() call.


    The browser calls NPP_URLNotify() after the completion of a NPN_GetURLNotify() or NPN_PostURLNotify() request to inform the plug-in that the request was completed and supply a reason code for the completion.

    The most common reason code is NPRES_DONE, indicating simply that the request completed normally. Other possible reason codes are NPRES_USER_BREAK, indicating that the request was halted due to a user action (for example, clicking the Stop button), and NPRES_NETWORK_ERR, indicating that the request could not be completed, perhaps because the URL could not be found.

    The parameter notifyData is the plug-in-private value passed as an argument by a previous NPN_GetURLNotify() or NPN_PostURLNotify() call, and can be used as an identifier for the request.

    See also

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    Contributors to this page: Pmash, Sheppy, Mgjbot
    Last updated by: Sheppy,