DontUseDwm="True" case the window corner unpainted

[gossiper]

In RibbonWindow, if you set DontUseDwm="True" to turn off aero glass effect, the window corner will be unpainted due to the corner radius. Also set CornerRadius is not working.

[batzen]

Sadly this is not really fixable from our side as we rely on the WindowChrome class provided by Microsoft. Just have a look at the other issues labelled with "WindowChrome" to get a picture.

[huoyaoyuan]

A resolution: set WindowStyle="None" first and AllowsTransparency="True" next. Remember to set it back when setting DontUseDwm="False".

[batzen]

That works once. But you can't set it back as WPF does not allow that.