Can a message box have a clickable URL?

We can have a URL as a string in a message box. Is there a way to make it clickable? Is there a way to set the dimensions of a message box, or change the attributes of the font displayed in a message box?

As mentioned in my answer in @Ratslinger’s second link, you can use a custom dialog as a message box. Dialogs can have clickable URLs.


As for some of the attributes, see:

How can I customise a message box

which has a link to:

How to change color or font for some part of the text in the msgbox?