通过

PropVariantToWinRTPropertyValue function

  • 项目

Extracts a Windows runtime property value from a PROPVARIANT structure. If no value can be extracted, a default value is assigned.

Syntax

HRESULT PropVariantToWinRTPropertyValue(
  _In_   REFPROPVARIANT propvar,
  _In_   REFIID riid,
  _Out_  void **ppv
);

Parameters

  • propvar [in]
    Reference to a source PROPVARIANT structure.

  • riid [in]
    Reference to the requested IID.

  • ppv [out]
    A pointer to a memory space that receives a pointer to the interface requested in riid. This is typically Windows::Foundation::IPropertyValue.

Return value

If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Minimum supported client

 Windows 8 [desktop apps only]

Minimum supported server

 Windows Server 2012 [desktop apps only]

Header

 Propsys.h

Library

 Propsys.lib

DLL

 Propsys.dll

See also

WinRTPropertyValueToPropVariant

 

 

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Build date: 6/28/2013