I'm very picky when it comes to understanding a new language, and recently I've taken up learning C#. So I like to know everything that is going on when I create a new Application - in this case a new Windows Forms Application. I created one and was given some generated code from Visual Studio and one line was
Yes it does, but you need have certain settings turned on in your OS otherwise you won't be able to see what it is.
Here are some screenshots of that same application on my system:
If buttons in other applications look like the second screenshot then you will always see buttons un-themed regardless of whether you use
Application.EnableVisualStyles(), because they are turned off by the OS - the way to turn them back on depends on your OS but usually involves going to the Performance >> Visual Effects dialog.