Get Values of uibuttongroup uicontrol checkboxs when i clicked on other uibuttongroup uicontrol pushbutton

I want to get the data of the checkbox values when i clicked on the submit button, presently just the callback is executed but not able to get the values of the checkbox -

get(bg1_cb,'Values) will give the cell values

but when inside the call back execution function, i am not able to retreive the values from the checkbox which i need to pass to OutputData varaible. which is the output function.

function OutputData = AlgRun_Test
%% Intial Variables
S1_Alg  = {'Test1','Test2','Test3','Test4','Test5','Test6','Test7'};

%% Create Figure and its Properties
Fig_Left   = 200;
Fig_Bottom = 100;
Fig_Width  = 210;
Fig_Height = 450;
f = figure('units','pixels','position',[Fig_Left,Fig_Bottom,Fig_Width,Fig_Height],...
             'toolbar','none','menu','none');
set(f,'Name','User Algorithm Selection');
set(f,'NumberTitle','off');

%% CheckBox Selection 
Left_Next = 5;
if true
    G1_Left   = Left_Next;
    G1_Bottom = 95;
    G1_Width  = 200;
    G1_Height = 350;
    bg1 = uibuttongroup('Visible','on','units','pixels',...
                      'Title','Test Selection','Tag','BG1',...
                      'Position',[G1_Left G1_Bottom G1_Width G1_Height]);
    for i = 1:length(S1_Alg)
    % Create three radio buttons in the button group
    bg1_cb(i) = uicontrol(bg1,'Style','checkbox',...
                      'String',S1_Alg{i},'Tag',['BG1_CB' num2str(i)],...
                      'Position',[10 300-(i-1)*30 200 30],...
                      'HandleVisibility','off');
    end
    Left_Next = G1_Left+G1_Width+10;
    Pre_Width = G1_Left+G1_Width-10;
end

%% User Confirmation
if true
    G4_Left   = 5;
    G4_Bottom = 15;
    G4_Width  = Pre_Width;
    G4_Height = 75;
    bg4 = uibuttongroup('Visible','on','units','pixels',...
        'Title','Confirm Selection','Tag','BG4',...
        'Position',[G4_Left G4_Bottom G4_Width G4_Height],...
        'SelectionChangedFcn',@pbselection);
    
    bg4_pb(1) = uicontrol(bg4,'Style','pushbutton',...
              'String','Submit','Callback',@submitcb,...
              'Position',[(G4_Width/8) 20 50 30],...
              'HandleVisibility','off');

    bg4_pb(2) = uicontrol(bg4,'Style','pushbutton',...
              'String','Cancel',...
              'Position',[((G4_Width/2)+G4_Width/8) 20 50 30],...
              'HandleVisibility','off');
end

%% Returning the User Selection Data Back
x = 0;
function pbselection(source,eventdata)
    disp(['Previous: ' event.OldValue.String]);
    disp(['Current: ' event.NewValue.String]);
    disp('------------------');
end

function submitcb(source,event) %(hObject, event, handles)
    OutputData = 0;
end

end

Answer 1

[Dennis]

You need to pass the handle of your checkboxes to your submitcb to access the values.

First add those handles as additional input to your callback:

bg4_pb(1) = uicontrol(bg4,'Style','pushbutton',...
              'String','Submit','Callback',{@submitcb,bg1_cb},... %<-----
              'Position',[(G4_Width/8) 20 50 30],...
              'HandleVisibility','off');
          

Then edit your callback:

function submitcb(source,event,cb) %cb are your checkbox handles
    for i=1:7
        OutputData=cb(i).Value %do something with them
    end
end