metainfo = metaclass(x)
propList = metainfo.PropertyList
propertyNames = {propList.Name}

Thanks.

An unfortunate side-effect of this design is that the Variable Editor needs to interact with the workspace (probably via JMI). Since there is only one Matlab computational thread, this interaction needs to wait for the user’s function to exit (the ‘>>’ prompt returning) before being able to query the variable data for display in the Editor.

Bottom Line: you can’t wait (synchronously) on the Variable Editor within your code.

But, you CAN make this work if you modify your request such that a callback function is called when the Variable Editor editing has ended (the window is closed) – this makes the design asynchronous, which enables the JMI interaction. Note: The following uses some undocumented/unsupported features that may break in future Matlab releases or might cause your screen to go blind:

% Open the variable in the Variable Editor
openvar(varname);
drawnow; pause(0.5); % wait for client to become visible

% Get handle of variable's client in the Variable Editor
jDesktop = com.mathworks.mde.desk.MLDesktop.getInstance;
jClient = jDesktop.getClient(varname);
hjClient = handle(jClient,'CallbackProperties');

% Instrument the client to fire callback when it's closed
set(hjClient,'ComponentRemovedCallback',{@my_callback,varname});

function my_callback(varEditorObj,eventData,varname)
   data = evalin('caller',varname);
   % do something with this modified data

Your best bet would be a custom GUI or one of the input dialogs. Try searching the file exchange for submissions like this one.

The variable editor is very usefull to edit any kind of variable but i’d would like to know if there is a way to do something like :

modified_var = openvar('initial_var')

That is, edit a variable with the variable editor, modify it and then get the modified variable as output.

Of course, i’d like to do this from inside a function.

Thanks for any help

There shouldn’t be a limit to the number of dependent properties that can be displayed (other than maybe system resources). Since this occurs for you at some variable point, I would suggest first talking to technical support to see if they can recommend a workaround:
http://www.mathworks.com/support/service_requests/contact_support.do

I find the variable editor very useful now that it is possible to view my own objects. There seems to be a problem using dependent properties however. It seems that if I have more than a couple of them, none of my objects properties show in the Variable Editor anymore. Is there a way around this? I cannot find any documentation to suggest what I am doing wrong.

I use Matlab R2008b, but I cannot see the private members of the obj I’m debugging. Are there any additional settings to be made in order to make them visible in the variable editor?

Daniel

Thanks for asking,
—
Bob Gilmore

I am using varible editor in order to check the values in a big array (more than 280000 rows)

Is it possible to jump to a specific row or colum in variable editor ?

Thank you very much