togglebutton with togglebutton inside for afteruse control

hi, I have a problem when dealing with toggle button control. I use one togglebutton2 to deside whether the mechine is on or off after use. togglebutton1 to control the system runing or stop. When the togglebutton1 value = 0, it should read the value of togglebutton2 to decide the mechine is on or off. But the command line just show

Error using handle.handle/get
Invalid or deleted object.

Error in pump_Callback (line 152)
            if get(GUI.tot+28, 'value') == 1
 
Error while evaluating UIControl Callback.

my codes are

if get(togglebutton1, 'value') ==0
        set(hObject,'BackgroundColor',GUI.menucolor,...
            'string',[get(hObject, 'UserData') ' stopped'],'FontSize',8);
        if check == GUI.tot+5 %the value control speed
            GUI.p1Running = 0;
            if get(togglebutton2, 'value') == 1
            stop(p1.t);
            vc = vc_set_bits_ac(vc, p1.num, [0 0 0 0 0 0]);
            elseif get(togglebutton2, 'value') == 0
            stop(p1.t);
            vc = vc_set_bits_ac(vc, p1.num, [0 0 0 0 0 0]);
            end
        end
end

But the code can work well when they are the following one. How can I do? Please Help! Very Thank!

  if get(togglebutton1, 'value') ==0
        set(hObject,'BackgroundColor',GUI.menucolor,...
            'string',[get(hObject, 'UserData') ' stopped'],'FontSize',8);
        if check == GUI.tot+5 %the value control speed
            GUI.p1Running = 0;
            stop(p1.t);
            vc = vc_set_bits_ac(vc, p1.num, [0 0 0 0 0 0]);
        end
  end

[Jan]

The line if get(GUI.tot+28, 'value') == 1 occurs in the error message, but not in the shown code. Please post the code, you are actually running, not any otehr code.

Are you sure that GUI.tot+28 is meaningful? We cannot know, what the variables check and GUI.tot are.

Answer 1

[Cris LaPierre]

I'm with Jan. Your error is coming from code you have not shared.

if get(GUI.tot+28, 'value') == 1

The get function expects the first input to be an object. Basically, a handle to an object. It would appear from your code GUI.tot is a number and not an object handle. So the error is that it cannot find the specified object because either your object handle is invalid or the object has been deleted.

A more typical expression would be

if get(togglebutton1, 'value') == 1

[Kuang-Yu WANG]

ah... sorry my fault. Actually GUI.tot+28 is togglebutton1. Because I do not want to make the question be too complex then I change the name of them.

[Walter Roberson]

Better to post the actual code.

If you are running R2014a or earlier, then GUI handles are numeric, and adding a number to them would create another numeric value. It is valid in those releases to get() passing in a numeric value -- it is just that the result would seldom just happen to be another valid object handle. It is not impossible to build a situation in those releases such as

GUI.tot = figure(); GUI.fig2 = figure(GUI.tot+35);

but it is seldom a good idea.