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IAttributeGet::GetAttribIndexed

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Microsoft DirectShow 9.0

IAttributeGet::GetAttribIndexed

This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later.

The GetAttribIndexed method returns an attribute value, specified by index.

Syntax

  HRESULT GetAttribIndexed(
  LONG  lIndex,
  GUID*  pguidAttribute,
  BYTE*  pbAttribute,
  DWORD*  pdwAttributeLength
);

Parameters

lIndex

[in]  Zero-based index of the attribute. To get the number of attributes, call IAttributeGet::GetCount.

pguidAttribute

[out]  Receives the GUID for this attribute.

pbAttribute

[in, out]  Pointer to a buffer that receives the attribute value. This parameter can be NULL.

pdwAttributeLength

[in, out]  If pbAttribute is NULL, this parameter receives the size of the attribute data, in bytes. If pbAttribute is non-NULL, this parameter specifies the size of the pbAttribute buffer, in bytes.

Return Values

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
E_INVALIDARG The lIndex parameter is out of range.
S_OK The method succeeded.

Requirements

Header: Include dsattrib.h.

See Also