Unknow error due to push second button when first button has already pushed

I have develop a programs which has several buttons. Les's say pushbutton1 and pushbutton2. When pushbutton1 is pushed, the program is running. However, when pushbutton2 is pressed, following error is appear. What is the problems?

Error using
tpac6de6f0_2275_443d_a558_3c8bef237e41>pushbutton2_Callback (line
1124)
Not enough input arguments.

Error using drawnow
Error while evaluating uicontrol Callback

if val1==1
y1=audioread(strcat(handles.path_wave,handles.name_wave),[round((counter-1)*len*Fs)+1 round((counter)*len*Fs)-1]);
handles.player1 = audioplayer(y1, Fs);
j=i+1;
% save all data to the handles object
handles.y        = y1';
handles.Fs       = Fs;
handles.timeSec  = length(y1)/Fs;
handles.atSample = 0;
[row col]=size(y1);

while flag1==0
    try
        play(handles.player1);
        tic
        H3=scatter(handles.axes3,[1:counter],play_time(1:counter),10);
        set(H3,'MarkerFaceColor','red');
        set(H3,'MarkerEdgeColor','red');
        set(H3,'LineWidth',1);   

          % assign a periodic timer to fire during playback
          cla(handles.axes2);
          h1=plot(handles.axes2,y1);
          set(h1,'linewidth',0.001)
          set(h1,'color',[0.5 0.5 0.5])

          overal=overal+len;
          counter=counter+1;
          y2=audioread(strcat(handles.path_wave,handles.name_wave),[round((counter-1)*len*Fs)+1 round((counter)*len*Fs)-1]);
          handles.player2 = audioplayer(y2, Fs);
          flag_forward=0;
          flag_backward=0;
          real_time=toc;
          while real_time<len &&  flag_forward==0 && flag_backward==0
              if (time(j)-time(i))<real_time && time(j)<overal
              H=scatter(handles.axes1,Normalized_Longitude(j),Normalized_Latitude(j),'b');
              set(H,'MarkerFaceColor','blue');
              set(H,'MarkerEdgeColor','blue');
              handles.F(j) = getframe(gcf);
                refreshdata
                drawnow
                i=j;
                j=i+1;
              end
              temp_flag=0;
              a=get(handles.pushbutton4, 'userdata') ;
              b=get(handles.pushbutton2, 'userdata') ;
              real_time=toc;
              while ~a || ~b
                  a=get(handles.pushbutton4, 'userdata') ; 
                  b=get(handles.pushbutton2, 'userdata') ;
                  pause(handles.player1);
                  drawnow;
                  temp_flag=1;
              end
              if temp_flag==1
              tic
              timer1=toc;
              while (timer1-real_time)<0.00001  
                  timer1=toc;
              end
              resume(handles.player1);
              end

function pushbutton2_Callback(hObject, eventdata, handles)

*error is here=>* if get(handles.pushbutton2,'userdata')==1
set(handles.pushbutton2,'userdata',0);
else
set(handles.pushbutton2,'userdata',1);
end

[Geoff Hayes]

amir - what is line 1124? Based on the error message, the problem seems to be with drawnow but that doesn't make much sense. Please post the full error message and the line of code that is generating the error.

Answer 1

[Walter Roberson]

The error could occur there if you had done the equivalent of

set(handles.pushbutton2, 'Callback', @pushbutton2_Callback)

somewhere in your code. For example you might have dynamically created the pushbutton uicontrol.

If you let GUIDE handle creation of the pushbutton2 then the problem should not occur.

At the MATLAB command line, give the command

dbstop if error

and run the code until the problem shows up. When it does, give the command

get( findall(0, 'tag', 'pushbutton2'), 'Callback' )

and show us the result.