how can i get screenshot continuously by pressing key?

This is my program that I can take a screenshot only once.

i want to take screenshot continuously in video by pressing key.

Can I do this by adding an index?

thanks before.

a = imaqhwinfo;
vid = videoinput('winvideo',1);
set(vid, 'FramesPerTrigger', Inf);
set(vid, 'ReturnedColorspace', 'rgb')
vid.FrameGrabInterval = 5;
start(vid) 
while(vid.FramesAcquired<=200)
    
    Key=get(gcf,'CurrentKey');
    if Key =='s'
        img1 = getsnapshot(vid);
        break;
    end

[KSSV]

You need to remove break and use strcmp instead of ==

[a.s]

data = getsnapshot(vid);

Answer 1

[KSSV]

a = imaqhwinfo;
vid = videoinput('winvideo',1);
set(vid, 'FramesPerTrigger', Inf);
set(vid, 'ReturnedColorspace', 'rgb')
vid.FrameGrabInterval = 5;
start(vid) 
while(vid.FramesAcquired<=200)
    
    Key=get(gcf,'CurrentKey');
    if strcmp(Key,'s')
        img1 = getsnapshot(vid);        
    end
end

[a.s]

thank you so much.....Now I want it to show me the frames every time I press the button. For example, I pressed the button 4 times.How can I see these 4 frames?