Implementing button callbacks on a GUI

[MU Speech Lab]

Hello Harold/Matt,

I'm trying to build a GUI within XBAT which will contain some
pushbuttons. One of my problems is that when using a buttongroup, I
can't get more than one button to display and keep getting the error
below:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
??? Error using ==> set
Value must be a string, a function handle, or a cell array containing
string or
function handle

Error in ==> control_group at 1368
set(this_button, 'callback', this_callback);

Error in ==> browser_feature_menu at 551
pal = control_group(par, '', str, control, opt);

??? Error while evaluating uimenu Callback
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

My code which creates the buttongroup is as follows:
control(end + 1) = control_create( ...
'name',{'new','delete'}, ...
'alias',{'New...','Delete...'}, ...
'style','buttongroup', ...
'width', 2/3,...
'space', 0.25 ...
);

This code is practically copy and pasted from the buttongroups on the
main pallet, but it won't work for me at all. For now, I have settled
to have the buttons just be on separate lines, but if you could help
me solve this problem I would greatly appreciate it.


The second (and larger) issue I'm having is that once I get buttons
onto the GUI, I am unable to make them respond to mouse click. I know
they require a callback, and that it belongs in a separate
parameter_control_callback file, but I can't figure out how to
structure this file or write the callback method.
Any help at all would be wonderful. Thanks for your time guys.

[MU Speech Lab]

Solved the callback problem, still can't get multiple buttons to show
up though.