Re: Re: Receiving JavaScript arrays in npruntime plugin

• Subject: Re: Re: Receiving JavaScript arrays in npruntime plugin
• From: "Aras Pranckevicius" <email@hidden>
• Date: Wed, 11 Oct 2006 12:47:41 +0200
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Even if "length" returns 0, you could try to access property 0, 1, 2,
etc. When you got to the end of the array, you would get "undefined"
back.

Thanks, this seems to work.

For reference, here's how I'm accessing the "length" property:

	NPObject* dispatch = NPVARIANT_TO_OBJECT(val); // the array object
	NPVariant outvar;
	NPString str;
	str.utf8characters = "length";
	MakeNPString( "length", str ); // sets utf8characters and utf8length

	VOID_TO_NPVARIANT(outvar);
	if( NPN_Evaluate( npp, dispatch, &str, &outvar ) ) // query length
	{
		int length = -1;
		if( NPVARIANT_IS_DOUBLE(outvar) )
		{
			// in Safari all numbers seem to be doubles...
			length = static_cast<int>( NPVARIANT_TO_DOUBLE(outvar) );
			// always get zero!
		}
		else if( NPVARIANT_IS_INT32(outvar) )
		{
			// this happens in Firefox, length being correct
			length = NPVARIANT_TO_INT32(outvar);
		}
		NPN_ReleaseVariantValue(&outvar);
		// ...

--
Aras Pranckevicius
Graphics programmer at unity3d.com
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