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CBaseList.AddBefore method

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The AddBefore method inserts a list before the specified position.

Syntax

BOOL AddBefore(
   POSITION  pos,
   CBaseList *pList
);

Parameters

pos

Position before which to insert the list.

pList

Pointer to the list to insert.

Return value

Returns TRUE if successful. Otherwise, returns FALSE.

Remarks

Existing position indicators, including the one specified in the pos parameter, remain valid. If the method fails, some of the items might have been added.

Requirements

Requirement Value
Header
Wxlist.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CBaseList Class