How to make Circle notificationen in Tabcontrol

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Hey everybody

I wonder how I can make a Circle notification of my Tabs in a TabControl, C# WindowsForms.

see image

Notificationer shall mean for example. Has happened two new messages in losses1 and 9 File is visible in Tab2

Hope you understand my question about which way I can get a circle to sit in each tab as well as have a number in the circle.

Good day to you all

Posted 17-Nov-15 7:03am

Member 12111047

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Sergey Alexandrovich Kryukov 17-Nov-15 13:21pm

Creating a correct round control is not a problem at all, but putting it over the tab area could be not so easy...
—SA

Sergey Alexandrovich Kryukov 17-Nov-15 13:28pm

Interesting idea. I up-voted the question.
—SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2015-11-17T07:27:00

Please see my comment to the question. On second though, I've found CodeProject article where this problem is solved: Painting Your Own Tabs - Second Edition[^].

As to some rounded (non-rectangle) control, this is easy. All you need to do is to provide appropriate rendering and, most importantly, set the property Control.Region to suitable System.Drawing.Region object representing non-rectangular shape:
https://msdn.microsoft.com/en-us/library/system.windows.forms.control.region(v=vs.110).aspx[^],
https://msdn.microsoft.com/en-us/library/system.drawing.region(v=vs.110).aspx[^].

This gives you a complete solution.

—SA