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IVdsProviderPrivate::OnLoad method

[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]

Prompts the provider to initialize itself, and passes a callback object that the provider uses to get necessary interfaces.

Syntax


HRESULT OnLoad(
  [in]  LPWSTR pwszMachineName,
  [in]  IUnknown *pCallbackObject
);

Parameters

pwszMachineName [in]

This parameter is reserved.

pCallbackObject [in]

Pointer to a callback object.

Return value

This method can return standard HRESULT values, such as E_INVALIDARG or E_OUTOFMEMORY, and VDS-specific return values. It can also return converted system error codes using the HRESULT_FROM_WIN32 macro. Errors can originate from VDS itself or from the underlying VDS provider that is being used. Possible return values include the following.

Return code/valueDescription
S_OK

The provider is initialized.

VDS_E_INITIALIZED_FAILED
0x80042401L

The provider failed to initialize.

 

Remarks

VDS calls this method immediately after calling the CoCreateInstance method on a provider.

Implementers must implement this method. Invoke the IUnknown::QueryInterface method to query for the IVdsAdviseSink interface.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

VdsHwPrv.h

Library

Uuid.lib

See also

IVdsProviderPrivate
IVdsProviderPrivate::OnUnload
IVdsAdviseSink

 

 

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