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Editorial Team
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Editorial Team
Asked: May 11, 20262026-05-11T21:37:38+00:00 2026-05-11T21:37:38+00:00

I have written a NPAPI plugin in C which needs to call the NPN_Invoke

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I have written a NPAPI plugin in C which needs to call the NPN_Invoke function
(in order to call a JavaScript function).

But NPN_Invoke() takes the NPP instance as a parameter.

Only the NP_New() and NP_Destroy() functions get passed NPP instance. How do I get this NPP instance?

Thanks in advance.

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  1. Editorial Team
    Editorial Team
    2026-05-11T21:37:38+00:00Added an answer on May 11, 2026 at 9:37 pm

    In the NP_GetEntryPoints define your own NP_yourNew Function, Now when the after the NP_New the framework calls your NP_yourNew with the instance. The instance could be saved when the your callback just gets invoked.

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