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IltmmMediaTypeDisp::get_Subtype

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#include "ltmm.h"

C Syntax

HRESULT IltmmMediaTypeDisp_get_Subtype(pMediaTypeDisp, pVal)

C++ Syntax

HRESULT get_Subtype(pVal)

 

IltmmMediaTypeDisp *pMediaTypeDisp;

/* pointer to an interface */

BSTR *pVal;

/* string */

Retrieves the subtype of the media sample.

Parameter

Description

pMediaTypeDisp

Pointer to an IltmmMediaTypeDisp interface.

pVal

Pointer to a character string that contains the subtype string. For more information on possible strings, refer to the DirectShow documentation.

Returns

S_OK

The function was successful.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

The string referenced by pVal contains a formatted Globally Unique Identifier (GUID) of the form {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}. For more information on the available GUIDs, refer to the DirectShow documentation.

If the function succeeds, the caller must free the BSTR referenced by pVal, by calling the SysFreeString function.

Platforms

Win32, x64

See Also

Elements:

IltmmMediaTypeDisp::get_Format, IltmmMediaTypeDisp::get_FixedSizeSamples, IltmmMediaTypeDisp::get_FormatSize, IltmmMediaTypeDisp::get_SampleSize, IltmmMediaTypeDisp::get_FormatType, IltmmMediaTypeDisp::get_TemporalCompression, IltmmMediaTypeDisp::get_Type, IltmmMediaTypeDisp::GetFormatData, IltmmMediaTypeDisp::put_FixedSizeSamples, IltmmMediaTypeDisp::put_FormatSize, IltmmMediaTypeDisp::put_FormatType, IltmmMediaTypeDisp::put_SampleSize, IltmmMediaTypeDisp::put_Subtype, IltmmMediaTypeDisp::put_TemporalCompression, IltmmMediaTypeDisp::put_Type, IltmmMediaTypeDisp::SetFormatData

Topics:

Multimedia Function Group

 

IltmmMediaTypeDisp interface

 

ltmmMediaType object

Example

For a C example, refer to Copying ltmmMediaType Attributes and Data for C.

For a C++ example, refer to Copying ltmmMediaType Attributes and Data for C++.

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