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MFStartup function

Initializes Microsoft Media Foundation.

Syntax


HRESULT MFStartup(
  ULONG Version,
  DWORD dwFlags = MFSTARTUP_FULL
);

Parameters

Version

Version number. Use the value MF_VERSION, defined in mfapi.h.

dwFlags

This parameter is optional when using C++ but required in C. The value must be one of the following flags:

ValueMeaning
MFSTARTUP_NOSOCKET

Do not initialize the sockets library.

MFSTARTUP_LITE

Equivalent to MFSTARTUP_NOSOCKET.

MFSTARTUP_FULL

Initialize the entire Media Foundation platform. This is the default value when dwFlags is not specified.

 

Return value

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

Return codeDescription
S_OK

The method succeeded.

MF_E_BAD_STARTUP_VERSION

The Version parameter requires a newer version of Media Foundation than the version that is running.

MF_E_DISABLED_IN_SAFEMODE

The Media Foundation platform is disabled because the system was started in "Safe Mode" (fail-safe boot).

E_NOTIMPL

Media Foundation is not implemented on the system. This error can occur if the media components are not present (See KB2703761 for more info).

 

Remarks

An application must call this function before using Media Foundation. Before your application quits, call MFShutdown once for every previous call to MFStartup.

Do not call MFStartup or MFShutdown from work queue threads. For more information about work queues, see Work Queues.

This function 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.

Windows Phone 8: This API is supported.

Windows Phone 8.1: This API is supported.

Examples


    hr = MFStartup(MF_VERSION);


Requirements

Minimum supported client

Windows Vista [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Mfapi.h

Library

Mfplat.lib

DLL

Mfplat.dll

See also

Media Foundation Functions
Initializing Media Foundation

 

 

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