Setting the Time Format

can represent time in one or more different formats including milliseconds, samples, Society of Motion Picture and Television Engineers (SMPTE), and MIDI song-pointer formats. The wType member specifies the format used to represent time. Before calling a function that uses the MMTIME structure, you must set the wType member to indicate your requested time format. Be sure to check wType after the call to see if the requested time format is supported. If the requested time format is not supported, the time is specified in an alternate time format selected by the device driver and the wType member is changed to indicate the selected time format. MMSYSTEM.H defines the following flags for the wType member of the MMTIME structure.

Flag	Description
TIME_MS	Milliseconds
TIME_SAMPLES	Number of waveform audio samples
TIME_BYTES	Number of waveform audio bytes
TIME_SMPTE	SMPTE time
TIME_MIDI	MIDI song-position pointer

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