In my gui3 , i want to break loop when i close the gui figure window

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cansu
cansu 2019-1-30
评论： Jan 2019-1-30
I created closeRequestFunc with this code;
function figure1_CloseRequestFcn(hObject,eventdata,handles)
clear playsnd
delete(hObejct);
end
My for loop works. But i want to add if statement to break loop when closing figure window
i tried this but not work.
if (handles.figure1_CloseRequestFcn)
break;
end
What do you suggest ???

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采纳的回答

Rik
Rik 2019-1-30
You can write a small function that tests if the object still exists. Unfortunately, exist and isobject don't solve this for you.
if isdeleted(handles.figure1)
break;
end
function tf=isdeleted(h)
tf=false;
try
get(h);
catch ME
if strcmp(ME.identifier,'MATLAB:class:InvalidHandle')
tf=true;
end
end
end
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Rik
Rik 2019-1-30
@Adam, good point, didn't think about that function. You could also move that comment to an answers.

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更多回答（1 个）

Adam
Adam 2019-1-30
isgraphics( handles.figure1 )
will tell you if the figure is still active or has been deleted.

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