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InitVariantFromBuffer function

Initializes a VARIANT structure with the contents of a buffer.

Syntax


HRESULT InitVariantFromBuffer(
  _In_   const VOID *pv,
  _In_   UINT cb,
  _Out_  VARIANT *pvar
);

Parameters

pv [in]

Type: const VOID*

Pointer to the source buffer.

cb [in]

Type: UINT

The length of the buffer, in bytes.

pvar [out]

Type: VARIANT*

When this function returns, contains the initialized VARIANT structure.

Return value

Type: HRESULT

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

Remarks

Creates a VT_ARRAY | VT_UI1 variant..

Examples

The following example, to be included as part of a larger program, demonstrates how to use InitVariantFromBuffer.


// void *pv;
// UINT cb;
// Assume variable pv and cb are initialized and valid. pv points to a 
// buffer and cb contains the size of the buffer in bytes.
VARIANT var;

HRESULT hr = InitVariantFromBuffer(pv, cb, & var);

if (SUCCEEDED(hr))
{
    // var now is valid and has type VT_ARRAY | VT_UI1.
    VariantClear(&var);
}

Requirements

Minimum supported client

Windows XP with SP2, Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 with SP1 [desktop apps only]

Redistributable

Windows Desktop Search (WDS) 3.0

Header

Propvarutil.h

Library

Propsys.lib

DLL

Propsys.dll (version 6.0 or later)

See also

VariantToBuffer
InitPropVariantFromBuffer

 

 

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