Get Instance ID from IIS Filter context (SF_REQ_GET_PROPERTY - SF_PROPERTY_INSTANCE_NUM_ID)MOTOBIT.COM

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Question: What is the return result of this function (SF_REQ_GET_PROPERTY)? It says that pData will contain the property requested. pData is a pointer, but a pointer to what in this case?

BOOL WINAPI * ServerSupportFunction( struct _HTTP_FILTER_CONTEXT * pfc, enum SF_REQ_TYPE sfReq, PVOID pData, DWORD ul1, DWORD ul2 ); SF_REQ_GET_PROPERTY is passed to ServerSupportFunction as sfReq parameter, pData contaions pointer to DWORD which returns InstanceID and ul2 is zero. Next GetInstanceID function is a sample of the ServerSupportFunction/SF_PROPERTY_INSTANCE_NUM_ID call. //Returns an InstanceID from Filter context//Returns an InstanceID from Filter context DWORD GetInstanceID(HTTP_FILTER_CONTEXT *pfc) { //Specify a buffer for the Instance ID DWORD InstanceID = 0xFFFFFFFF; //Call ServerSupportFunction BOOL SupportResult = pfc->ServerSupportFunction(pfc, (enum SF_REQ_TYPE)SF_REQ_GET_PROPERTY, &InstanceID, SF_PROPERTY_INSTANCE_NUM_ID, 0); //Return the InstanceID return InstanceID; };

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<A
 Href="https://www.motobit.com/tips/detpg_INSTANCE_NUM/"
 Title="Short sample to get an IIS
	property using ServerSupportFunction"
>Get Instance ID from IIS Filter context (SF_REQ_GET_PROPERTY - SF_PROPERTY_INSTANCE_NUM_ID)</A>

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