flushdata

Remove data from memory buffer used to store acquired image frames

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Syntax

flushdata(obj)
flushdata(obj,mode)

Description

flushdata(obj) removes the data from the memory buffer associated with obj used to store acquired image frames

example

flushdata(obj,mode) removes the data specified by mode.

Examples

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Construct a video input object.

obj = videoinput("gentl",1);

Initiate an acquisition.

start(obj);

Check how many frames of data are available.

obj.FramesAvailable
ans =
     10

Remove the data from the memory buffer.

flushdata(obj)

Check how many frames of data are available.

obj.FramesAvailable
ans =
     0

Remove the video input object from memory.

delete(obj)

Input Arguments

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Video input object, specified as the output of the videoinput function. obj can be a single video input object or an array of video input objects.

Example: videoinput("matrox")

Select which data to remove, specified as one of the following.

  • "all" — Remove all buffer data associated with obj.

  • "triggers" — Remove the data that was acquired during the oldest trigger executed. TriggerRepeat must be greater than 0 and FramesPerTrigger must not be set to Inf. See videoinput Trigger Properties.

Example: "triggers"

Data Types: char | string

Version History

Introduced before R2006a

See Also

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