// ksmedia.h

typedef union _timecode {
  struct {
    WORD  wFrameRate;
    WORD  wFrameFract;
    DWORD dwFrames;
  };
  DWORDLONG qw;
} TIMECODE;
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Windows Driver Kit DDI reference (ns-ksmedia-_timecode)

_timecode structure

Description

The TIMECODE union describes a timecode from an external device. This structure is no longer used.

Members

`wFrameRate`

Specifies the frame rate.

`wFrameFract`

Specifies the fractional frame. The full-scale frame is 0x1000.

`dwFrames`

Specifies a timecode value as a binary frame count.

`qw`

Specifies the timecode as a quad-word.

Remarks

This structure is defined for the purpose of searching to a timecode based on an absolute track number (ATN) and/or relative time counter (RTC). However, not all devices support searching to a timecode using this structure.

TIMECODE - NtDoc