[Mono-bugs] [Bug 480297] "Unhandled Exception: System.InvalidOperationException: Visual Styles are not enabled" on program startup

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Wed Mar 4 11:45:57 EST 2009


User jpobst at novell.com added comment

Jonathan Pobst <jpobst at novell.com> changed:

           What    |Removed                     |Added
             Status|NEW                         |CLOSED
                 CC|                            |jpobst at novell.com
         Resolution|                            |INVALID

--- Comment #1 from Jonathan Pobst <jpobst at novell.com>  2009-03-04 09:45:56 MST ---
VisualStyles are not supported on all operating systems, including Linux.  Your
code would also crash on Windows 2000, ME, and 98, as well as XP/2003 systems
with themes turned off.

You have to check Application.RenderWithVisualStyles before using the
VisualStyles namespace. 

If it returns false, you have to provide a backup painting mechanism that does
not use VisualStyles.

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