Addlistener in uiprogressDlg for CancelRequested

Hey,

I would like to add a listener to the Variable CancelRequested for uiprogressDlg. This shall be possible outside a loop without polling all the time by hand. Since only get.CancelRequested will be asked, which is not observable, I get no respond. I would appreciate your help, how to solve this.

classdef Untitled

properties

fig

dlg

end

methods

function obj = Untitled()

obj.fig = uifigure;

obj.dlg = uiprogressdlg(obj.fig,'Title','Wait',...

'Message','Starting','Cancelable','on','CancelText','Cancel','Indeterminate','on');

addlistener(obj.dlg,"CancelRequested",'PostSet',@obj.cancelMeasurement);

main(obj)

end

function main(obj)

counter = 50;

for ii = 1:counter %you can put all your other code here

%% outcommented is not a solution ;)

% if isempty(findobj(fig)) == 1

% obj.dlg.CancelRequested = 1;

% end

% if dlg.CancelRequested == 1

% disp('You Hit Cancel or Exited')

% delete(fig)

% return

% end

% obj.dlg.Value = ii/counter;

obj.dlg.Message = sprintf('%12.2f%% complete',ii/counter*100);

pause(0.1)

end

obj.dlg.CancelRequested

close(obj.dlg);

end

function cancelMeasurement(obj,~,~)

close(obj.dlg);

close(obj.fig);

errordlg('Measurement aborted by User','Information');

end

end

end

Answer 1

[Arthi Sathyamurthi]

Hello Markus,

The code “obj.dlg.CancelRequested” only gets the state of CancelRequested and returns the value. Hence set the state of CancelRequested to a value as

obj.dlg.CancelRequested = 1; 

in order to call the addlistener handle.