toggle button callback did not function

Question

Kuang-Yu WANG 2018-12-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/437053-toggle-button-callback-did-not-function

评论： Walter Roberson 2018-12-24

function closepump_Callback(hObject)
%CLOSEPUMP Summary of this function goes here
%   Detailed explanation goes here
global GUI
if get(hObject,'value')==1 % button down
    set(hObject,'BackgroundColor',GUI.offcolor,... %yellow = pump running
        'string',[valves open]);
    
elseif get(hObject,'value')==0 %button up
    set(hObject,'BackgroundColor',GUI.menucolor,...
        'string',[valves close]);
else
    fprintf(2, 'callback object value was not 1 or 0, was %g\n', get(hObject,'Value'));
end

this is my callback of a togglebutton. However it said there are too many input arguments. How can I fix it?

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Answer 1

Image Analyst 2018-12-24

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https://ww2.mathworks.cn/matlabcentral/answers/437053-toggle-button-callback-did-not-function#answer_353708

在 MATLAB Online 中打开

Try this:

function closepump_Callback(hObject, eventdata, handles)

I suspect the last two inputs somehow got deleted by accident.

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Kuang-Yu WANG 2018-12-24

not this problem. But still thanks. I found out that is

'string',[valves close]

need to change to

'string','valves close'

Walter Roberson 2018-12-24

在 MATLAB Online 中打开

No, that would not have made the difference for that error message. However, the missing input arguement locations would make a difference. See for example your July posting about this same software, in which you had coded

function checkpump(hObject, ~, ~)

Notice three input arguement slots.

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