IMFAttributes::GetUINT32 method (mfobjects.h)

  • Article

Retrieves a UINT32 value associated with a key.

Syntax

HRESULT GetUINT32(
  [in]  REFGUID guidKey,
  [out] UINT32  *punValue
);

Parameters

[in] guidKey

GUID that identifies which value to retrieve. The attribute type must be MF_ATTRIBUTE_UINT32.

[out] punValue

Receives a UINT32 value. If the key is found and the data type is UINT32, the method copies the value into this parameter. Otherwise, the original value of this parameter is not changed.

Return value

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

Return code Description
S_OK
 The method succeeded.
MF_E_ATTRIBUTENOTFOUND
 The specified key was not found.
MF_E_INVALIDTYPE
 The attribute value is not a UINT32.

Remarks

This interface is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:

  • Windows XP with Service Pack 2 (SP2) and later.
  • Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (October 2006 Update Rollup for Windows XP Media Center Edition) installed.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2008 [desktop apps | UWP apps]
Target Platform Windows
Header mfobjects.h (include Mfidl.h)
Library Mfuuid.lib

See also

Attributes and Properties

IMFAttributes

MFGetAttributeUINT32

MF_ATTRIBUTE_TYPE