That's a good theory, and it led me to the solution. If you refer back to the picture linked in the OP, the problem smells of two transparencies overlapping each other, but even when removing all transparent colors from my code, the problem persisted. So, for a final test I went into my Windows Settings/Personalization/Colors and noticed "Transparency Effects" was enabled. Disabling it solved the problem, and I guess it makes sense since my app inherits its theme from the Windows settings on my PC. Nevertheless, this seems like an odd behavior from the base Windows theme for it to show up only when related to flyouts. I'm guessing there's a way to override the base theme on a child flyout, but for now I'm just going to leave Transparency Effects disabled. Thanks for nudging me in the right direction!

Regards, R. Wey

I'm having an issue with a nested button flyout that I can't figure out. ( Screenshot of the problem --> Uwp Flyout Issue[^] ) Basically, a hamburger button's flyout contains a Splitview, where the pane is a Listview menu. When a menu item is chosen, the SplitView's content frame navigates to an associated page. Simple enough. On a menu page, if I have a button with a flyout that contains a ColorPicker, there seems to be some sort of dismiss area overlap problem. I've tried various combination of LightDismissOverlayMode settings on the SplitView and the button flyouts, to no avail. Here's the hamburgar button within the StackPanel of the main page:

... and the main layout StackPanel of the selected menu page that contains the ColorPicker in a button's flyout:

Given more investigation since my original post, I understand what you're saying. My general problem is that I never jumped on board the moment WPF came out, as Windows apps were never my true occupation. I've built numerous WinForms apps, some quite polished, for utility purposes and WinForms has served me quite well. I am now faced with "catching up" and painful as it is I feel confident I will eventually succeed. To answer my own question, however, I've found an excellent video series on YouTube by Bob Tabor which presents a 70+ part series on UWP. For anyone interested (newcomers like me), the first video is UWP 001 Series Introduction - YouTube[^] You can search YouTube to easily find all in the series.

Regards, R. Wey

I've spent many years with WinForms and have concluded learning UWP is long overdue. I'm doing OK so far, but the one thing I'm having trouble finding info about is the UI Element properties. Namely, the Brush, Layout, Appearance, Common, Automation, etc. properties you see in one form or another for all UI elements in the design view. I realize this is not a very specific question and I did search, but found nothing. What I'm looking for is some documentation/link describing in detail all of these properties and what they have in common to the UI Elements. Understanding is key to better programming. Thanks for any recommendations.

Regards, R. Wey

No problem. Given that it saw over 2.5 million downloads, I figured there might be somebody that used it for this purpose and I don't think DirectX11 is going anywhere any time soon. As for newer platforms, I unfortunately don't have a lot of experience with them so I'm concerned about the stumbling block that would present and not knowing their limitations. I could struggle my way thru UWP, but using what accelerated graphics API? Win2D? WinUI3? DirectN ? It's hard to know which platform to choose that will still be around by the time I learn it.

Regards, R. Wey

I'm using WinForms (yeah, I know ... old school), tho I don't think that makes much difference as in the end its simply the window/control Handle that has to be specified as the swapchain.OuputHandle. I'm doing that already for playing a video file as a test and performance is very good. When looking through SharpDX.MediaFoundation with Reflector, I get the strong feeling it provides the means for capture input, but I can't find any complete examples in that specific area.

Regards, R. Wey

I understand it's no longer supported, but it's battle tested and I don't think the risk at present is any greater than investing in the "latest and greatest" GUI framework only to have it killed off before it gets off the ground. Besides, I feel if I use SharpDX to get a better handle on the underlying concepts, porting to something new(er) when required would be easier. As to my original question, I know there's other NuGet packages that make easy work of displaying camera input ( i.e. AForge, Accord ), but I'm not convinced they're taking full advantage of the GPU, which is what I'm looking for. Specifically, I need to route the capture byte stream directly to the mediaengine's render surface as I'll be dealing with larger sizes and framerates.

Regards, R. Wey

I'm somewhat new to DirectX programming and need a bit of guidance. My requirement is currently limited to video and 2D drawing and so far I've managed to get SharpDX to play a video from a file without problems, and also have been able to do my 2D drawing. This was simple enough and the performance is good. Ultimately, my video source will need to be video input devices ( i.e. web cams, video capture cards, etc. ). My question is: Does SharpDX.MediaFoundation include DirectShow wrappers such that I can access and play video from local video input devices? If so, can someone point me in the right direction and link some examples of using SharpDX for this purpose? Many thanks.