Is is possible to change the font size of a questdlg's buttons?

Question

Albert Bing 2019-12-28

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评论： Walter Roberson 2020-1-2

I know the message can be set by opts in answer = questdlg(quest,dlgtitle,btn1,btn2,btn3,opts).

But is it possible to also change the font size of the buttons?

This page default-property-values gives some infomations. I checked the result of get(groot, 'factory'). There are factoryTextFontSize, factoryUibuttongroupFontSize, and factoryUicontrolFontSize.

But the command set(groot, 'factoryTextFontSize', 12) didn't work. Apparently get(groot, 'default) gives only 5 properties.

So how to deal with the default settings above?

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Answer 1

Walter Roberson 2019-12-31

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在 MATLAB Online 中打开

The buttons are created using uicontrol(), which permits html 1.1 . For example,

questdlg('Hello World ?','Hello','<html><font size="20">World','<html>what<sup>now','<html>what<sup>now');

Note that changing the font size does not make the buttons any larger, just the font size.

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Albert Bing 2020-1-2

Thank you! It works.

Just wonder from which version the html was supported.

Walter Roberson 2020-1-2

I am not sure, but some release before 2009.

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Answer 2

Mohammad Sami 2019-12-30

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编辑：Mohammad Sami 2019-12-30

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You can use the optional opts argument to enable the Interpreter tex. Then you can use the supported modifier \fontsize{..} in front of your text.

questdlg('\fontsize{20}Hello World ?','Hello',struct('Default','','Interpreter','tex'));

You can check the documentation for all the supported modifiers.

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Albert Bing 2019-12-31

This opts only changes the message's font. What I really want to find out is how to change the font of the buttons, the selection buttons with text "Yes", "No", "Cancel" by default.

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Answer 3

Image Analyst 2019-12-31

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I believe that button text is an operating system setting. You can change it there. Or maybe you can override that with the things others showed here. If you want something totally custom (button sizes, locations, colors, etc.) you'll have to build your own little applet with GUIDE or App Designer.