How do I stop a function?

6 次查看（过去 30 天）
Renato Pereira
Renato Pereira 2017-9-11
评论： Walter Roberson 2017-9-13
I have a function running when I push a button in a GUI. I want to end this function when I press another button. example:
function first_callback (hObject, eventdata, handles)
a = b + c
while...
...
...
...
end
end
function stopbuttonback_callback (hObject, eventdata, handles)
%something that stops function first_callback
end

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采纳的回答

Walter Roberson
Walter Roberson 2017-9-12
function first_callback (hObject, eventdata, handles)
a = b + c
set(handles.stopbutton, 'UserData', false);
while true
drawnow();
if get(stopbutton, 'UserData'); break; end
...
...
...
end
end
function stopbuttonback_callback (hObject, eventdata, handles)
set(hObject, 'UserData', true);
end
  3 个评论
显示 1更早的评论
Renato Pereira
Renato Pereira 2017-9-13
Dont know why but when I write the "while true" the function stopbuttonback_callback doesn't work... let me give you the all code:
function start_Callback(hObject, eventdata, handles)
a = 0;
while a < 100
b = datestr(a/(24*60*60),'HH:MM:SS');
set(handles.time,'String',b);
a = a + 1;
pause(1)
end
function stop_Callback(hObject, eventdata, handles)
set(handles.time,'String','00:00:00');
Walter Roberson
Walter Roberson 2017-9-13
function start_Callback(hObject, eventdata, handles)
a = 0;
set(handles.stop, 'UserData', false);
while a < 100
pause(1); %pause works as well as drawnow() to allow interrupts
if get(handles.stop, 'UserData'); break; end
b = datestr(a/(24*60*60),'HH:MM:SS');
set(handles.time,'String',b);
a = a + 1;
end
function stop_Callback(hObject, eventdata, handles)
set(handles.time,'String','00:00:00');
set(hObject, 'UserData', true);

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