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The WMTIMECODE structure is used with device control to get the current tape position and frame count information.
Syntax
typedef struct WMTIMECODE{
WORD wFrameRate;
WORD wFrameFract;
DWORD dwFrames;
};
Remarks
wFrameRate is a WORD containing the number of frames per second. Specify with one of the following values.
| Value | Description |
| ED_FORMAT_SMPTE_30 | 30 frames per second. |
| ED_FORMAT_SMPTE_30DROP | 30 frames per second drop frame (actual rate 29.97 fps). |
| ED_FORMAT_SMPTE_25 | 25 frames per second. |
| ED_FORMAT_SMPTE_24 | 24 frames per second. |
wFrameFract is a WORD containing the fractional frame. Full scale is 0x1000. Fractional frame can be used to indicate temporal offset into frame when time code was actually read from an external device; for example, wFrameFract=0x7ff means the time code value was read from the device at the end of the first video field.
dwFrames is a DOUBLE WORD containing the time code value as a binary framecount in the format 0xhhmmssff.
Requirements
Header: wmdevctl.h
Library: wmdevctl.dll
See Also