Resizing ribbonwindow shows black background while dragging

Hi Arthur,

That is low-level WPF issue and is out of our control. Windows with more elements may show it a bit more than simpler windows since the WPF rendering engine is attempting to catch up with the resized window and render on it. Microsoft has a suggestion in this post where you can set the background color so that it's not black and matches something more along the lines of your theme:
https://connect.microsoft.com/WPF/feedback/ViewFeedback.aspx?FeedbackID=468295

[Modified at 02/11/2011 01:57 PM]

Wow, this MS bug was reported in 2009.
Until now there is nothing done about it....

The link no longer works. Got a valid link?

Try now.

The links works now, but seems the Microsoft page has removed it.

I can see it ok. Make sure you log in with their account.

Odd, I logged in with my account and still can't view it.

The resulting "workaround" they give is:

Quote:
If you are referring to the black "seams" in the lower right corner of the WPF window while resizing: A workaround to make this less noticeable is to update your WPF application’s HWND WNDCLASSEX.hbrBackground field using SetWindowLong(...) to a different color HBRUSH. This value is unset by default which is why it looks Black.