.NET - A1000 - Strange problems when Application.EnableVisualStyles is used

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	Knowledge Base Article

Strange problems when Application.EnableVisualStyles is used

Article ID:	A1000
Product Group:	.NET
Product:	n/a

Version(s):
Updated:	13 Dec 2004
Categories:	n/a

Description

There may be different symptoms of this problem. For example:

I.
We are getting an occasional InteropServices.SEHException when dragging a DockWindow into a new position. It does not seem to be related to our application.

II.
If I have visual styles (XP styles) enabled in the application, the images for the toolbar buttons all go away.

Solution

The problem is caused by the Application.EnableVisualStyles method. It is described in detail in the following article:
http://weblogs.asp.net/rprabhu/archive/2003/09/28/56540.aspx

To make a long story short, you should call the DoEvents method after EnableVisualStyles as shown below.

[VB.NET]

Application.EnableVisualStyles()
Application.DoEvents()  ' <<<<  NEW LINE

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