Why does QUESTDLG return the wrong button string if I use the TAB key to switch between different buttons and then hit the Return key using MATLAB 7.3 (R2006b)?

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MathWorks Support Team
评论： Image Analyst 2020-11-17
I would like to use the TAB key to switch between different buttons of a QUESTDLG.
At the moment I am only able to use the mouse to choose between the different buttons but not the TAB key. The buttons do get highlighted in order but when you hit the return key, the default selection is always returned.
For example:
ButtonName = questdlg('What is your favorite color?', ...
'Color Question', ...
'Red', 'Green', 'Blue', 'Green');
switch ButtonName,
case 'Red',
disp('Your favorite color is Red');
case 'Blue',
disp('Your favorite color is Blue.')
case 'Green',
disp('Your favorite color is Green.');
end
After executing the above code, pressing the TAB key causes different buttons to be highlighted but Green is always returned when you hit the return key.

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采纳的回答

MathWorks Support Team
The ability to use the TAB key to switch between different buttons on a QUESTDLG dialog and activating the button via return key is not available in MATLAB.
To work around this issue you can use the use the TAB key to switch between different buttons on a QUESTDLG dialog and hit the spacebar key to return the correct button string.
  2 个评论
Image Analyst
Image Analyst 2020-11-17
This has been fixed at some point. At least it's not a problem in R2020b.
ButtonName = questdlg('What is your favorite color?', ...
'Color Question', 'Red', 'Green', 'Blue', 'Green');
switch ButtonName
case 'Red'
disp('Your favorite color is Red');
case 'Blue'
disp('Your favorite color is Blue.')
case 'Green'
disp('Your favorite color is Green.');
end

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