MATLAB IMAGE ACQUISITION TOOLBOX - RELEASE NOTES Guide de l'utilisateur Page 445

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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 =
1
Create a second video input object.
vid2 = videoinput('winvideo');
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