How can I change the font size of MsgBox?

if f==0 || f <0
    Message = sprintf('Serbestlik derecesi %d\n DENGELEME YOK!!! ',f);
    h = msgbox(Message,...
        'Dikkat', 'warn');
  end

Answer 1

[Adam Danz]

Here's a function I wrote that does exactly this. Pass the handle of the msgbox() and the fontsize to the function.

msgboxFontSize(h, fontsize)

If you don't want a function, here's the basics:

First get the handle to the text within the message box, then change the font size. Here's a demo.

mh = msgbox('I can barely read this.', 'test');     %create msgbox
th = findall(mh, 'Type', 'Text');                   %get handle to text within msgbox
th.FontSize = 14;                                   %Change the font size

If you increase the font size too much, you'll need to expand the message box to fit the extent of the text.

deltaWidth = sum(th.Extent([1,3]))-mh.Position(3) + th.Extent(1);
deltaHeight = sum(th.Extent([2,4]))-mh.Position(4) + 10;
mh.Position([3,4]) = mh.Position([3,4]) + [deltaWidth, deltaHeight];

Lastly, allow the user to resize the window if needed:

mh.Resize = 'on';

Answer 2

[Anibal Siguenza Torres]

The easiest is to use the TeX format so the subset of markup supported by matlab can be used. To activate them you have to create an structure and send it as parameter as follows:

CreateStruct.Interpreter = 'tex';
CreateStruct.WindowStyle = 'modal';

msgbox('\fontsize{18} Now is big =)', CreateStruct)

for more info https://www.mathworks.com/help/matlab/ref/msgbox.html#btv1cej-1-CreateMode

[Claudio Camarra]

lo que escribiste....no funciona-.