Return a structure kind output from a programmatic UI and then use this output to modify a settings parameters m-file

Hi everybody,

I am developing a programmatic UI that returns a structure kind output and then I want the output to be imported to a m-file in order to modify a m-file settings parameters.

function selpar
%SELPAR Summary of this function goes here

% Define struct
data = struct('chanBW', 1, 'modType', 1);

% Construct the components
f = figure('Visible','on','Name','selpar','Position',[360,200,450,285]);
%guidata(f,struct('chanBW',1.4,'modType',1));
pmchanBw = uicontrol(f,'Style','popupmenu', 'Callback', @select_chanBW,'String',{'1.4','3','5','10','15','20'},...
          'Position',[30 80 130 20],'Tag','popumpmenu1');
pmod = uicontrol(f,'Style', 'popupmenu', 'Callback', @select_modulation, 'String', {'QPSK', '16QAM', '64QAM'},...
          'Position',[30 120 130 20],'Tag','popupmenu2');
push = uicontrol(f, 'Style', 'pushbutton', 'Callback', @start_simulation, 'String', {'Start'},...
          'Position',[250 60 40 20]);

%Write Callbacks
function select_chanBW(hObject, callbackdata)
chanString = hObject.String;
chanValue = hObject.Value;
switch chanString{chanValue}
  case '1.4'
      data.chanBW = 1;
  case '3'
       data.chanBW = 2;
  case '5'
       data.chanBW = 3;
  case '10'
       data.chanBW = 4;
  case '15'
       data.chanBW = 5;
  case '20'
       data.chanBW = 6;
end
end

function select_modulation(hObject, callbackdata)
modString = hObject.String;
modValue = hObject.Value;
switch modString{modValue}
  case 'QPSK'
      data.modType = 1;
  case '16QAM'
      data.modType = 2;
  case '64QAM' 
      data.modType = 3;
end 
end

function start_simulation(hObject, callbackdata)
display([data.chanBW data.modType]);
%Here has to be placed the code referred to export the structure data 
%Call the main code (which reads the settings parameters m-file)
end

end

Thanks in advance.