![]() Changing Matlab's Command Window colors – Matlab's Command Window foreground and background colors can be modified programmatically, using some of Matlab's undocumented internal Java classes.Command Window text manipulation – Special control characters can be used to format text output in Matlab's Command Window.Another Command Window text color hack – Matlab's fprintf command has an undocumented hack to display orange-colored text.cprintf – display formatted color text in the Command Window – cprintf is a utility that utilized undocumented Matlab desktop functionalities to display color and underline-styled formatted text in the Command Window.And if you find ways to make cprintf better, please do let me know (I don’t mean suggestions for *me* to work on: I mean actual improvements that *you* made to the code). Please feel free to download cprintf from the File Exchange and read its contents to see how a not-too-large utility can achieve something previously believed to be impossible. Finally, of course, ‘*’ is more compact and easier to use and maintain than ‘…’ … Moreover, cprintf catches a situation of trying to use both underline and bold formats, and issues a warning. The benefit of using cprintf over directly using the tag is that it works seamlessly on Matlab release 2011a and earlier that do not support the tag (the text is simply not bolded, whereas if we had used this tag would be displayed onscreen, which is ugly). This is bold % this text appears bolded-blue We can easily use this information ourselves: Starting with help‘s m-file ( %matlabroot%/toolbox/matlab/helptools/help.m), and step-by-step debugging, I quickly found out that the internal function prepareHelpForDisplay parses the help text and wraps the relevant terms with an HTML tag to make these terms appear bold. My second attempt was to follow the Matlab trail, to see exactly what the help function does internally to format parts of the text as bold. So unless I find a way to update the BoldStartTokens attribute values from Matlab, this looked like a dead end. Attempting to remove and add the attribute afresh (with modified values) failed due to a : Illegal cast to MutableAttributeSet Java exception. This means that unlike the SyntaxTokens attribute, which contains an array of Java String objects that can be modified one at a time (this is used by cprintf), the BoldStartTokens attribute value cannot be modified in a similar manner. Unfortunately, this attribute contains an array of integer values, that get converted to a simple numeric array in Matlab. ![]() It turns out that in addition to the three custom attributes used by Matlab in past releases, a fourth attribute called BoldStartTokens was added, which stored the relative position index of the bold text within each text element. I stated out investigating the relevant attributes used by the CW’s underlying Java component to display the text. It therefore seemed a reasonable request to add this functionality to cprintf. This is used, for example, when displaying the function name in the output of the help function (i.e., help(‘max’) will display the term ‘max’ in bold when displaying the help section). Since Matlab release 7.13 (R2011b), the Matlab Command Window (CW) has the ability to display bold text. The comment requested a way to display bold text in the Command Window, similarly to the way that we can display co lo red and underlined text using my cprintf utility. Select MATLAB > Fonts > Custom and choose a tool from the list of Desktop tools.A reader comment last week sent me on a short wild goose chase, that had an interesting and useful conclusion. To change theįont preferences, on the Home tab, in the Environment section, click Preferences. You can further customize fonts in MATLAB by changing the font preferences for an individual tool. ![]() Windows ® and macOS platforms, MATLAB uses system setting for antialiasing. ![]() You must restart MATLAB for the preference to take effect. To apply antialiasing and create a smoother desktop appearance on Linux ® systems, select Use antialiasing to smooth desktopįonts. ![]() Changing the font size is only supported for the Editor, Live Editor, Online, to change the font name and font style, in the Preferences window, go Select MATLAB > Fonts and, in the Desktop text fontīox. On the Home tab, in the Environment section, click Specify the font name and style using font ![]()
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