MATLAB: Lock first app if second is running

app designerlock appp

Hello,

how can i lock first app if secod is running.

I have the main app and one app which ask some input data from oprator. And i would like to lock main app during time when operator write some data to second one app. It should be locked, visibility is not solutions….

Thanks.

Tomas

Best Answer

You can use waitfor in the main function and provide the handle of the uifigure.

[EDITED] I assume, that https://www.mathworks.com/matlabcentral/fileexchange/15895-enable-disable-entire-figure-window works with figures only, not with uifigures. I did not test https://www.mathworks.com/matlabcentral/fileexchange/31437-windowapi with uifigures also, and it would run under Windows only:

% [EDITED: works with uifigure also, tested in R2018b]
H = uifigure;
WindowAPI(H, 'enable', 0);
pause(10)
WindowAPI(H, 'enable', 1);

You can disable all elements of the uifigure manually: Store a collection of all handles you want to disable in aa variable. Then set the 'Enable' property to 'off' and add a message, that the window is locked until the other is finished.

Actually using uiwait should work suffciently, if the other window is 'modal'. Unfortunately I do not see a way to create a modal uifigure. But if the 2nd GUI is opened through a callback of the 1st GUI, setting teh 'Interruptible' property of the 1st GUI to 'off' and the 'BusyAction' to 'cancel' should ignore all interactions with the 1st GUI, when it waits to waitfor inside the callback.

Another idea is to set a flag in the GUI's UserData, which is checked in each callback, as long as the 2nd GUI is open:

function CallbackOf1StGUI(H, EventData)
GUI1 = ancestor(H, 'uifigure');  % Does this work?
if GUI1.UserData.Locked
    return;
end
GUI2 = OpenGUI2();
GUI1.UserData.Locked = true;
waitfor(GUI2);
GUI1.UserData.Locked = false;
end

Add the test of the locked GUI in each callback.

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MATLAB: Is there a way to disable focus on a calling app while designing multi-window apps using app designer

I've figured out a work around for my needs. Solution is as follows:

Create a progress dialog in the calling app UIFigure from the dialog app startup function

    function startupFcn(app,CallingApp)
        app.InterruptDialog=uiprogressdlg(CallingApp.UIFigure);
        %rest of your code

    end

2. Close the progress dialog in the close request function of the dialog app

    function UIFigureCloseRequest(app,event)
        close(app.InterruptDialog);
        %rest of your code
        delete(app);
    end

The only negative of this method is that the progress dialog kicks in after the dialog app becomes visible, but the lag is acceptable. Hope this helps.

MATLAB: Appdesigner button group problem

Enabled property is not valid for Button Group but valid for Button. So, app.Button.Enable = 'off' will work.

%% Create UIFigure
app.UIFigure = uifigure;
app.UIFigure.Position = [100 100 640 480];
app.UIFigure.Name = 'UI Figure';
% Create ButtonGroup
app.ButtonGroup = uibuttongroup(app.UIFigure);
app.ButtonGroup.Title = 'Button Group';
app.ButtonGroup.Position = [282 115 123 106];
% Create Button
app.Button = uiradiobutton(app.ButtonGroup);
app.Button.Enable = 'off';
app.Button.Text = 'Button';
app.Button.Position = [11 60 58 22];
app.Button.Value = true;
% Create Button2
app.Button2 = uiradiobutton(app.ButtonGroup);
app.Button2.Enable = 'off';
app.Button2.Text = 'Button2';
app.Button2.Position = [11 38 65 22];
% Create Button3
app.Button3 = uiradiobutton(app.ButtonGroup);
app.Button3.Text = 'Button3';
app.Button3.Position = [11 16 65 22];
%% Disable all buttons 
app.Button.Enable = 'off';
app.Button2.Enable = 'off';
app.Button3.Enable = 'off';

Also, Button Group has Visible property, so you can hide button group by the following.

app.ButtonGroup.Visible = 'off';

Best Answer

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MATLAB: Is there a way to disable focus on a calling app while designing multi-window apps using app designer

MATLAB: Appdesigner button group problem

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