MCI_VCR_SET_PARMS structure
The MCI_VCR_SET_PARMS structure contains parameters for the MCI_SET command for video-cassette recorders.
Syntax
typedef struct tagMCI_VCR_SET_PARMS {
DWORD_PTR dwCallback;
DWORD dwTimeFormat;
DWORD dwAudio;
DWORD dwTimeMode;
DWORD dwRecordFormat;
DWORD dwCounterFormat;
DWORD dwIndex;
DWORD dwTracking;
DWORD dwSpeed;
DWORD dwLength;
DWORD dwCounter;
DWORD dwClock;
DWORD dwPauseTimeout;
DWORD dwPrerollDuration;
DWORD dwPostrollDuration;
} MCI_VCR_SET_PARMS;
Members
-
dwCallback
-
The low-order word specifies a window handle used for the MCI_NOTIFY flag.
-
dwTimeFormat
-
Current time format.
-
dwAudio
-
Not used.
-
dwTimeMode
-
Constant that specifies the timing source used by the device. The timing source is either a timecode recorded on videotape, or the counters in the device that sense videotape movement.
-
dwRecordFormat
-
Recording rate.
-
dwCounterFormat
-
Format of a new counter time value.
-
dwIndex
-
Contents of on-screen display.
-
dwTracking
-
Speed adjustment used when tracking the VCR playback rate.
-
dwSpeed
-
Playback speed used by the device as an integer. Normal playback speed is 1000, double speed is 2000, and half speed is 500.
-
dwLength
-
Videotape length when the length is undetectable by the device.
-
dwCounter
-
New counter value.
-
dwClock
-
New clock time.
-
dwPauseTimeout
-
New timeout value for pause command.
-
dwPrerollDuration
-
Videotape length needed to stabilize the VCR output.
-
dwPostrollDuration
-
Videotape length needed to brake the VCR transport when a MCI_STOP or MCI_PAUSE command is issued.
Remarks
When assigning data to the members of this structure, set the corresponding flags in the fdwCommand parameter of the mciSendCommand function to validate the members.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|