Performs as a factory for services that are exposed through an implementation of IServiceProvider.
Namespace: Microsoft.VisualStudio.Data.Framework
Assembly: Microsoft.VisualStudio.Data.Framework (in Microsoft.VisualStudio.Data.Framework.dll)
Syntax
'宣言
Private Function QueryService ( _
ByRef guidService As Guid, _
ByRef riid As Guid, _
<OutAttribute> ByRef ppvObject As IntPtr _
) As Integer Implements IServiceProvider.QueryService
'使用
Dim instance As ServiceProvider
Dim guidService As Guid
Dim riid As Guid
Dim ppvObject As IntPtr
Dim returnValue As Integer
returnValue = CType(instance, IServiceProvider).QueryService(guidService, _
riid, ppvObject)
int IServiceProvider.QueryService(
ref Guid guidService,
ref Guid riid,
out IntPtr ppvObject
)
private:
virtual int QueryService(
Guid% guidService,
Guid% riid,
[OutAttribute] IntPtr% ppvObject
) sealed = IServiceProvider::QueryService
JScript does not support explicit interface implementations.
Parameters
guidService
Type: System.Guid%A unique identifier of the requested service.
riid
Type: System.Guid%A unique identifier of the interface that the caller wants to receive for the service.
ppvObject
Type: System.IntPtr%The address of the interface specified by the riid parameter.
Return Value
Type: System.Int32
An integer specifying the address of the interface for the requested service.
Implements
IServiceProvider.QueryService(Guid%, Guid%, IntPtr%)
Permissions
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.