IServiceProvider::QueryService(REFGUID,Q**) method (servprov.h)

Article
02/22/2024

Acts as the factory method for any services exposed through an implementation of IServiceProvider.

Syntax

HRESULT QueryService(
  REFGUID guidService,
  Q       **pp
);

Parameters

guidService

The unique identifier of the service (an SID).

pp

The address of the caller-allocated variable to receive the interface pointer of the service on successful return from this function. The caller becomes responsible for calling Release through this interface pointer when the service is no longer required.

Return value

S_OK on success.

Remarks

QueryService creates or accesses the implementation of the service identified with guidService. In ppv, it returns the address of the interface that is specified by riid.

Requirements

Requirement	Value
Minimum supported client	Windows Build 22000
Minimum supported server	Windows Build 22000
Header	servprov.h

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