DSIsMarker
Checks the current stream position.
Synopsis
int32 DSIsMarker (DSStreamCBPtr streamCBPtr, uint32 markerValue, Boolean* fIsMarker)
Description
Determines if the specified stream is positioned at the destination of a stream branching operation because it arrived there as the result of a DSGoMarker() call. This is used to implement conditional flushing of data based upon the knowledge that the stream position is a result of "play through" or a "branch."
Arguments
streamCBPtr
- Pointer to the stream context block.
markerValue
- Pointer to Boolean where
TRUE is returned if markerValue is a branch destination.
fIsMarker
- Pointer to a Boolean variable that will be set to
TRUE if the value of markerValue is the destination of the most recent DSGoMarker() call.
Return Value
- Value
- Error Condition
kDSNoErr
- None
The return value is not dependent on whether or not the stream is located at the specified marker.
Associated Files
DataStreamLib.h
See Also
DSGoMarker