SVVCR

See also

Manage the playback when using the VCR.

WebVue support - No. Returns an unsuccessful code if used in this context.

Mode	Mnemonic	Syntax
1	READ	1
2	STOP	2
3	PAUSE	2
4	PREVIOUS	2
5	NEXT	2
6	MDF_READ_PARAM	3

Arguments common to more than one mode

Argument	Meaning
EventPeriod	Period for replaying events in ms (step mode).
EventCount	Number of events to be played in the period (step mode).
TimeFactor	Replay speed coefficient (time mode).
PlaybackMode	Replay mode, 0=step, 1=time.
UnitName	Archive unit name.
PictureFileNumber	A VCR archive unit file number. The file number is constructed from the date and timestamp at which it was created. For example 19991208150000 represents 08/12/1999 15:00:00. The file number is a record of the VCR variables at the time and date it was created.

Syntax 1

IntVal = SVVCR(Mode, PlaybackMode, UnitName, PictureFilenumber, EventPeriod, EventCount, TimeFactor);

Return type: INTEGER.

Execution

Mode	Mnemonic	Action
1	READ	Read and play the specified VCR archive starting at the date and time of the PictureFileNumber. Return: 1 if successful, else 0.

Syntax 2

IntVal = SVVCR(Mode);

Return type: INTEGER.

Execution

Mode	Mnemonic	Action
2	STOP	Playing of events is stopped.
3	PAUSE	Playing of events is paused.
4	PREVIOUS	If playing, go backward by the time factor x10.
5	NEXT	If playing, go forward by the time factor x10.
		Return: 1 if successful, else 0.

Syntax 3

IntVal = SVVCR(Mode, EventPeriod, EventCount, TimeFactor );

Return type: INTEGER.

Execution

Mode	Mnemonic	Action
6	MDF_READ_PARAMETER	Modify the VCR playback parameters. Return: 1 if successful, else 0.