Reference

IUnknown_QueryService(3w)

NAME

IUnknown_QueryService (SHLWAPI.176)

SYNOPSIS

HRESULT IUnknown_QueryService
(
IUnknown* lpUnknown,
REFGUID sid,
REFIID riid,
LPVOID* lppOut
)

DESCRIPTION

Retrieve a Service Interface from an object.

PARAMS

lpUnknown [In] Object to get an IServiceProvider interface from.

sid [In] Service Id for IServiceProvider_QueryService(3w) call.

riid [In] Function requested for QueryService call.

lppOut [Out] Destination for the service interface pointer.

RETURNS

Success: S_OK. lppOut contains an object providing the requested service

Failure: An HRESULT error code.

NOTES

lpUnknown is expected to support the IServiceProvider interface.

IMPLEMENTATION

Declared in "shlwapi.h".

Implemented in "dlls/shlwapi/ordinal.c".

Debug channel "shell".

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