drawout question

After why the program code does run, still will present busy. Maybe will be the drawout question, ask that had any method to be possible to solve this problem,or had the any program code could substitute for drawout .

This is my program code: function f4() clear all;

obj1 = mmreader('can.avi'); obj2 = mmreader('watch.avi'); obj3 = mmreader('book.avi'); obj4 = mmreader('phone.avi');

vid1 = read(obj1); vid2 = read(obj2); vid3 = read(obj3); vid4 = read(obj4);

frame1 = 1; frame2 = 50; frame3 = 30; frame4 = 1; f4 = 1;

hst1=0; hst2=0; hst3=0; hst4=0;

h = figure('Name','Video ', 'NumberTitle','off','Color',[1,1,1],'Toolbar','none','Visible','on', 'Position',[80 40 1150 700],... 'Resize','off','menu','none');

hstat1 = uicontrol('unit','pixel','style','checkbox','value',0,'position',... [50 630 25 25],'units','normalized'); hstat2 = uicontrol('unit','pixel','style','checkbox','value',0,'position',... [50 550 25 25],'units','normalized'); hstat3 = uicontrol('unit','pixel','style','checkbox','value',0,'position',... [50 480 25 25],'units','normalized'); hstat4 = uicontrol('unit','pixel','style','checkbox','value',0,'position',... [50 410 25 25],'units','normalized');

hplay1 = uicontrol('unit','pixel','style','pushbutton','string','藥罐_PLAY',... 'position',[50 630 70 40],'backgroundColor',[0.3,0.7,1],'units','normalized','callback',{@play1_callback}); hplay2 = uicontrol('unit','pixel','style','pushbutton','string','手錶_PLAY',... 'position',[50 550 70 40],'backgroundColor',[0.3,0.7,1],'units','normalized','callback',{@play2_callback}); hplay3 = uicontrol('unit','pixel','style','pushbutton','string','書本_PLAY',... 'position',[50 480 70 40],'backgroundColor',[0.3,0.7,1],'units','normalized','callback',{@play3_callback}); hplay4 = uicontrol('unit','pixel','style','pushbutton','string','手機_PLAY',... 'position',[50 410 70 40],'backgroundColor',[0.3,0.7,1],'units','normalized','callback',{@play4_callback});

hstop1 = uicontrol('unit','pixel','style','pushbutton','string','藥罐_STOP',... 'position',[50 330 70 40],'backgroundColor',[0.2,1,0],'units','normalized','callback',@stop1_callback); hstop2 = uicontrol('unit','pixel','style','pushbutton','string','手錶_STOP',... 'position',[50 250 70 40],'backgroundColor',[0.2,1,0],'units','normalized','callback',@stop2_callback); hstop3 = uicontrol('unit','pixel','style','pushbutton','string','書本_STOP',... 'position',[50 170 70 40],'backgroundColor',[0.2,1,0],'units','normalized','callback',@stop3_callback); hstop4 = uicontrol('unit','pixel','style','pushbutton','string','手機_STOP',... 'position',[50 90 70 40],'backgroundColor',[0.2,1,0],'units','normalized','callback',@stop4_callback);

hexit = uicontrol('unit','pixel','style','pushbutton','string','EXIT',... 'position',[50 10 70 40],'backgroundColor',[1,0,0],'units','normalized','callback',@exit_callback);

while (1)

if hst1==1 subplot(2,2,1); imshow(vid1(:,:,:,frame1)); if frame1 < size(vid1,4) frame1 = frame1+1; else frame1 = 1; end

end

if hst2==1 subplot(2,2,2); imshow(vid2(:,:,:,frame2)); if frame2 < size(vid2,4) frame2 = frame2+1; else frame2 = 1; end end

if hst3==1 subplot(2,2,3); imshow(vid3(:,:,:,frame3)); if frame3 < size(vid3,4) frame3 = frame3+1; else frame3 = 1; end end

if hst4==1 subplot(2,2,4); imshow(vid4(:,:,:,frame4)); if frame4 < size(vid4,4) frame4 = frame4+1; else frame4 = 1; end % else % subplot(2,2,4); imshow(vid2(:,:,:,1)); end

drawnow; if f4 ==10000 break; % else f4 = f4+1; end end

function play1_callback(hObject0,eventdata0) set(hstat1,'value',1); hst1=1; set(hplay1 ,'backgroundColor',[1,1,0],'string','藥罐_播放中'); %set(gcf,'units','normalized','position',[0 0 1 1]); end

function play2_callback(hObject1,eventdata1) set(hstat2,'value',1); hst2=1; set(hplay2 ,'backgroundColor',[1,1,0],'string','手錶_播放中'); end

function play3_callback(hObject2,eventdata2) set(hstat3,'value',1); hst3=1; set(hplay3 ,'backgroundColor',[1,1,0],'string','書本_播放中'); end

function play4_callback(hObject3,eventdata) set(hstat4,'value',1); hst4=1; set(hplay4 ,'backgroundColor',[1,1,0],'string','手機_播放中'); end

function stop1_callback(hObject,eventdata) set(hstat1,'value',0); hst1=0; set(hplay1 ,'backgroundColor',[0.3,0.7,1],'string','藥罐_PLAY'); end

function stop2_callback(hObject,eventdata) set(hstat2,'value',0); hst2=0; set(hplay2 ,'backgroundColor',[0.3,0.7,1],'string','手錶_PLAY'); end

function stop3_callback(hObject,eventdata) set(hstat3,'value',0); hst3=0; set(hplay3 ,'backgroundColor',[0.3,0.7,1],'string','書本_PLAY'); end

function stop4_callback(hObject,eventdata) set(hstat4,'value',0); hst4=0; set(hplay4 ,'backgroundColor',[0.3,0.7,1],'string','手機_PLAY'); end

function exit_callback(hObject,eventdata)

stop1_callback; stop2_callback; stop3_callback; stop4_callback; f4=1000; close gcf; end

end

Please instruct me, thank you very much!

[Jan]

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[Image Analyst]

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