Making a Gui with nested functions. My handle structure disappears after moving to different functions in the code.

I'm making a Gui without using Guide (I felt like it gave a lot of cloggy code) and I am having trouble keeping my handle structure in the code. I currently don't have any idea why it happens.

My code's basic structure is as follows.

function streakgui

h.fig= figure('position', [num num num num]);

%put button locations

h.browsebut= uicontrol...(its a pushbutton)

set(h.browsebut, 'Callback', {@browsedhf, h});

%other push button)

h.findpeaks= uicontrol(...

h.thresh= uicontrol('style', 'edit', 'position', [num num num num], 'String', 'Intensity Thres');

Other edittext box
h.minarea...

%callback functions

      function h=findpeaks(hObject, eventdata, h)
           h.thres=get(h.thresh,'String');

      end
end

What happens next doesn't really matter but at this point some of my originial h fields go away and I don't know why. I've tried looking at it in debugging mode and h.fig and h.findpeaks are still there but the edit text boxes are gone from h when it is trying to pull the data. I'm not sure if I somehow deleted h or what is going. Any advice or tips would be apprieciated!

Answer 1

[Image Analyst]

findpeaks() is a built in function of the Signal Processing toolbox. That might be the problem. Use a different name for your custom function.

[Aaron Greenbaum]

I renamed findpeaks to peakfind and I had the same error. In debugging mode I noticed that the edittext data is not contained in the h structure before I try to get(data).

[Image Analyst]

The solution can be found in this link.

Find out where the fields of h disappear and tell us what line caused that.

[Aaron Greenbaum]

I ended up making h a global variable in my functions and solved the problem. Thanks for the debugging video, I saved it for reference.