Window chrome turning black during window resize.

[abdelkarim]

Start by watching the following video, how to reproduce ?

1. launch the test app and switch to the office 2010 blue theme
2. move it below the task bar a little bit.
3. start re-sizing and notice how it turns black.

[batzen]

That's really strange and only happens when making the window wider by using the re-size border on the right side, but not when using the top or left re-size border...

This bug/issue is definitely on the microsoft side of the fence...

I guess I will have to sit down and report all the WindowChrome issues we encounter here (there are a few other open issues) to microsoft connect.

[batzen]

I don't know how to fix the current issues, including this one, related to the microsoft WindowChrome class. Any suggestions from anyone?

[Flo0806]

Hey,
here is a workaround:
public WindowSizing(RibbonWindow window)
{
this.window = window;
this.window.StateChanged += this.HandleWindowStateChanged;
}

In WindowSizing add a SizeChanged-Event. This Event call the HandleWindowStateChanged. When the Window not responds, after the not responding the SizeChanged event was called and set the position of the window correct again!

[batzen]

This can't be the solution because "FixNastyWindowChromeBug" (which is called by "HandleWindowStateChanged") checks if the window is maximized and if it's not the function just returns.

[batzen]

Does this still happen on your machines?
I just tried it on Windows 10 and the issues seems to be solved.

[batzen]

Should be fixed in develop branch.