Switching SelectedTab by WindowKeyPressFcn successively

I want to switch uitab using WindowKeyPressFcn as the attached code. If the last clicked object is outside of the tab group (white area), pressing 1 and 2 on the keyboard successively switches selectedTab as I want. However, if the inside of the tab group (gray, red or green area) were clicked last, the tab can not be switched with the keyboard after switching one time.

Is there any solutions?

Thank you.

Answer 1

[Mahato Endo]

It might be an unexpected behavior of “WindowKeyPressFcn”. You can report the behavior to the MathWorks technical support team directly. https://jp.mathworks.com/support/servicerequests/index.html

[Yuki]

Thank you for your comment. I will ask to the support center.

Answer 2

[Yuki]

I got a reply from support center. If we focused on existing uicontrol object or a dummy object in tab, the problem never happen. I heared also that they will try to update WIndowKeyPressFcn itself.

>> lines are modifications from support center.

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function h=test_slcttab

h.fig=figure('WindowKeyPressFcn',@WindowKeyPressFcn_fig,'Color',[1 1 1]);

h.tg=uitabgroup(h.fig,'Position',[0 0 1 2/3]);

h.tb1=uitab(h.tg,'Title','t1','BackgroundColor',[1 0 0]);

>> h.control1 = uicontrol( h.tb1, 'Style', 'Text', 'Position', [0 0 0 0] );

h.tb2=uitab(h.tg,'Title','t2','BackgroundColor',[0 1 0]);

>> h.control2 = uicontrol( h.tb2, 'Style', 'Text', 'Position', [0 0 0 0] );

function WindowKeyPressFcn_fig(~,N1_in2)

if strcmp(N1_in2.Key,'1')

h.tg.SelectedTab=h.tb1;

>> uicontrol(h.control1)

elseif strcmp(N1_in2.Key,'2')

h.tg.SelectedTab=h.tb2;

>> uicontrol(h.control2)

end

end

end

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Thank you.