User`s guide

isrunning

17-53

isrunning

Determine whether video input object is running

Syntax

bool = isrunning(obj)

Description

bool = isrunning(obj) returns true if the video input object obj is running,

otherwise false. A video input object is running if the value of its Running property is

set to 'on'.

If obj is an array of video input objects, bool is a logical array where each element in

bool represents the corresponding element in obj. If an object in obj is running, the

isrunning function sets the corresponding element in bool to true, otherwise false.

If the video input objects in obj is invalid, isrunning returns an error.

Examples

Create a video input object, configure a manual trigger, and then start the object. This

puts the object in running state.

vid = videoinput('winvideo');

triggerconfig(vid,'manual')

start(vid)

Use isrunning to check the state of the object.

bool = isrunning(vid)

bool =

Create a second video input object.

vid2 = videoinput('winvideo');