cannot setappdata to GUIHandles

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William
William 2013-1-21
Matlab wiki claims this exists but I cannot set or save anything to GUIHandle I tried GUIHANDLES and that didn't work either. DOes anyone know what handles are the best to pass variables in and out of functions? I don't want to use global variables
Here is what I tried below
Thanks
% Do this to save variables to your figure's workspace.
% handles.GUIHandle is the "Tag" property of your main GUI figure.
% Double-click figure to bring up the "Property Inspector" in GUIDE.
setappdata(handles.GUIHandle, 'yourVariable', yourVariable)
% Do this to retrieve variables from your figure's workspace.
yourVariable = getappdata(handles.GUIHandle , 'yourVariable')
% Do this to remove what you saved from your figure's workspace.
rmappdata(handles.GUIHandle, 'yourVariable')

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Walter Roberson
Walter Roberson 2013-1-21
At the place that GUIHandle appears, you need to use the same name as you set for the Tag property of your figure.
Like the comment says above, "Double-click figure to bring up the "Property Inspector" in GUIDE." You can set the Tag property from there.
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Image Analyst
Image Analyst 2013-1-22
编辑：Image Analyst 2013-1-22
For what it's worth, I always call the tag for my main GUI "figMainWindow". So it's always the same and I never have to try to remember what I called a particular one. If my main GUI calls other subordinate, helper GUIs, then I give them a slightly different name, like figSettings or something. I also expanded the explanation in the FAQ to try to make it more clear what you have to do.
William
William 2013-1-28
An excellent Idea thank you

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