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Problem with getting output from KeyPressFcn

조회 수: 2 (최근 30일)
yuval
yuval 2018년 2월 9일
댓글: Adam 2018년 2월 9일
Hello, I have a KeyPressFcn with two input variables and i would like one output variable.
Example of the code:
h = figure
set(h,'KeyPressFcn',{@pushbutton_callback,var1,var2});
function outputVar = pushbutton_callback(src,event,var1,var2)
outputVar = var1*var2;
end
The problem is that outputVar doesn't exist in the workspace afterwards...
I've read the documentation but still as it appears didn't really understand how to work with this function.
Thanks in advance.
  댓글 수: 1
Adam
Adam 2018년 2월 9일
Callbacks cannot define output arguments. You will need to save your value using e.g. guidata:
function pushbutton_callback(src,event,var1,var2)
hGUIData = guidata( src );
hGUIData.outputVar = var1*var2;
guidata( src, hGUIData );
end
Then it can be accessed via
hGUIData = guidata( h )
hGUIData.outputVar

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