callback stop

Hi

I wamt to set up button controling "stop" video, but when I push one "stop" button,then the button callback one video stop,other video also play video continuely.

this is my code

function vidplayer()
obj = mmreader('can.avi');
obj1 = mmreader('watch.avi');
obj2 = mmreader('phone.avi');
obj3 = mmreader('can.avi');

v = read(obj);
v1 = read(obj1);
v2 = read(obj2);
v3 = read(obj3);
figure('Name','scene  ',...
    'NumberTitle','off',...
    'Visible','on',...
    'Position',[150 100 1000 500],... 
    'Color',[1,1,0.95],'HandleVisibility','on',...
    'Menubar','none',...
    'IntegerHandle','off',...
    'Resize','on');

hstat = uicontrol('style','checkbox','value',0,'position',...
            [160 10 25 25]);
hplay = uicontrol('style','pushbutton','string','PLAY',...
            'position',[10 130 50 25],'backgroundColor',[1,1,0.2],'callback',{@play_callback,v});
hplay = uicontrol('style','pushbutton','string','PLAY',...
            'position',[10 90 50 25],'backgroundColor',[1,1,0.2],'callback',{@play_callback1,v1});
hplay = uicontrol('style','pushbutton','string','PLAY',...
            'position',[10 50 50 25],'backgroundColor',[1,1,0.2],'callback',{@play_callback2,v2});
hplay = uicontrol('style','pushbutton','string','PLAY',...
            'position',[10 10 50 25],'backgroundColor',[1,1,0.2],'callback',{@play_callback3,v3});
hstop = uicontrol('style','pushbutton','string','STOP',...
            'position',[60 130 50 25],'backgroundColor',[1,0.5,0.5],'callback',{@stop_callback,v});
hstop = uicontrol('style','pushbutton','string','STOP',...
            'position',[60 90 50 25],'backgroundColor',[1,0.5,0.5],'callback',{@stop_callback1,v1});
hstop = uicontrol('style','pushbutton','string','STOP',...
            'position',[60 50 50 25],'backgroundColor',[1,0.5,0.5],'callback',{@stop_callback2,v2});
hstop = uicontrol('style','pushbutton','string','STOP',...
            'position',[60 10 50 25],'backgroundColor',[1,0.5,0.5],'callback',{@stop_callback3,v3});
hexit = uicontrol('style','pushbutton','string','EXIT',...
            'position',[110 10 50 25],'backgroundColor',[1,0,0.1],'callback',@exit_callback);

function play_callback(hObject,eventdata,vid)
    set(hstat,'value',1);    
    for frame = 1 : size(vid,4)   
        if get(hstat,'value') == 1,
            subplot(2,2,1); imshow(vid(:,:,:,frame));
            drawnow;    
        else, break; end
    end    
end
function play_callback1(hObject,eventdata,vid)
    set(hstat,'value',1);    
    for frame = 1 : size(vid,4)   
        if get(hstat,'value') == 1,
             subplot(2,2,2); imshow(vid(:,:,:,frame));
            drawnow;    
        else, break; end
    end    
end

function play_callback2(hObject,eventdata,vid)
    set(hstat,'value',1);    
    for frame = 1 : size(vid,4)   
        if get(hstat,'value') == 1,
            subplot(2,2,3); imshow(vid(:,:,:,frame));
            drawnow;    
        else, break; end
    end    
end

function play_callback3(hObject,eventdata,vid)
    set(hstat,'value',1);    
    for frame = 1 : size(vid,4)   
        if get(hstat,'value') == 1,
            subplot(2,2,4); imshow(vid(:,:,:,frame));
            drawnow;    
        else, break; end
    end    
end

function stop_callback(hObject,eventdata,vid)
    set(hstat,'value',0);
end
function stop_callback1(hObject,eventdata,vid)
    set(hstat,'value',0);
end
function stop_callback2(hObject,eventdata,vid)
    set(hstat,'value',0);
end
function stop_callback3(hObject,eventdata,vid)
    set(hstat,'value',0);
end
function exit_callback(hObject,eventdata)
    stop_callback;
    close gcf;
end
end

please give me something advice. Thank!

[Jiro Doke]

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