IltmmPlay::IsRateSupported

Summary

Determines whether a specific playback rate is supported or not.

Syntax

#include "ltmm.h"

Language Syntax
C HRESULT IltmmPlay_IsRateSupported(pPlay, Rate, pResult)
C++ HRESULT IsRateSupported(Rate, pResult)

Parameters

IltmmPlay *pPlay

Pointer to an IltmmPlay interface.

double Rate

The playback rate for which to check.

VARIANT_BOOL *pResult

Pointer to a variable to be updated with a value that indicates whether the specified playback rate is supported. Possible values are:

Value Description
VARIANT_TRUE The rate is supported.
VARIANT_FALSE The rate is not supported.

Returns

Value Meaning
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 playback rate is expressed as a ratio of the normal playback speed. For example, use 1.0 for normal speed, 2.0 for double speed, and 0.5 for half speed.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

Language Example
C IltmmPlay::IsRateSupported
C++ IltmmPlay::IsRateSupported
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.