How to control button in GUI Start and Stop process

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Adisorn Phanukthong 2017-6-20

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https://ww2.mathworks.cn/matlabcentral/answers/345428-how-to-control-button-in-gui-start-and-stop-process

回答： Pathasu Doungmala 2019-3-1

采纳的回答： Walter Roberson

when I press stop button process is stop all and when press start button again process is begin again

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Gopichandh Danala 2017-6-20

provide more details, we don't understand like what to start or stop lot of assumptions

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采纳的回答

Walter Roberson 2017-6-20

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/345428-how-to-control-button-in-gui-start-and-stop-process#answer_271232

编辑：Walter Roberson 2017-6-20

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There is no way to use the GUI to interrupt a routine without its cooperation.

Your stop_Callback should set a value in a shared area. Your realtimefunction routine should sometimes fetch the current version of the value, and exit if it finds it has been asked to stop.

For example,

function start_Callback(hObject, eventdata, handles)
  set(hObject, 'UserData', false);
  realtimefunction(handles);
function stop_Callback(hObject, eventdata, handles)
  set(handles.start, 'UserData', true);
function realtimefunction(handles)
   ...
   while true
     drawnow();        %give a chance for interrupts
     need_to_stop = get(handles.start, 'UserData');
     if ~isempty(need_to_stop) && need_to_stop;
       break;
     end
     ...
   end
   %now clean up as needed

That is not what the comments say. As you inform me that you are having problems executing the code, I must presume that the comments describe the way that the code is intended to operate and that any code that does not work that way is incorrect code that you were asking me to repair.

In any case you can easily remove the test I put in about framecount < 100