Error message. Increase font size.

2017 2 3
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更新时间：2017 2 21
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Guillaume
Guillaume 2017-2-3
编辑：Guillaume 2017-2-3

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h = errordlg('Error! Error!');
htext = findobj(h, 'Type', 'Text'); %find text control in dialog
htext.FontSize = 15; %set fontsize to whatever you want

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Thanks! But, I've realized, that the last line is wrong! There is an error: Warning: Struct field assignment overwrites a value with class "double". See MATLAB R14SP2 Release Notes, Assigning Nonstructure Variables As Structures Displays Warning, for details. I've changed it to:
set(htext,'FontSize',25); %set fontsize to whatever you want
Guillaume
Guillaume 2017-2-3
The last line isn't wrong, but it requires a newish (>= R2014b) version of matlab.
Pre-R2014b, you indeed have to use set to set the FontSize.
Hi again! Sorry, what about questdlg? It doesn't return a handle, it returns an answer.
choice = questdlg('Do you hear?','Channel2','Yes','No', 'Yes');
What I should do in this case to increase the font?
Guillaume
Guillaume 2017-2-21
You cannot modify the font size (or any other property for that matter) of a questdlg. You would have to create your own dialog from scratch, I'm afraid.
Or copy questdlg.m in your own folder, rename the file and modify the code to add an optional font size argument.

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