Specifications

1 Getting Started with GUIDE
1-12
Editing Version 5 GUIs with Version 7 GUIDE
In MATLAB Version 5, GUIDE saved GUI layouts as MAT-file/M-file pairs.
Since MATLAB Version 6, GUIDE saves GUI layouts as FIG-files. GUIDE also
generates an M-file to program the GUI callbacks. However, this M-file does
not contain layout code as did M-files created in Version 5.
Use the following procedure to edit a Version 5 GUI with Version 7 GUIDE:
1 Display the Version 5 GUI.
2 Obtain the handle of the GUI figure. If the figure’s handle is hidden (i.e., the
figure’s
HandleVisibility property is set to off), set the root
ShowHiddenHandles property to on:
set(0,'ShowHiddenHandles','on')
Then get the handle from the root’s Children property:
hObject = get(0,'Children');
This statement returns the handles of all figures that exist when you issue
the command. For simplicity, ensure that the GUI is the only figure
displayed.
3 Pass the handle as an argument to the guide command:
guide(hObject)
Saving the GUI in Version 7 GUIDE
When you save the edited GUI with Version 7 GUIDE, MATLAB creates a
FIG-file that contains all the layout information. The original MAT-file/M-file
combination is no longer used. To display the revised GUI, run the M-file
generated by GUIDE.
Updating Callbacks
Ensure that the Callback properties of the uicontrols in your GUI are set to the
desired callback string or callback M-file name when you save the FIG-file. If
your Version 5 GUI used an M-file that contained a combination of layout code
and callback routines, then you should restructure the M-file to contain only
the commands needed to initialize the GUI and the callback functions. The