Window Transparency

[Samuel12321]

Thanks for creating this incredibly useful project

A really useful feature missing from WinUI 3 is window background transparency. It would be very useful if you could add support for this. Perhaps similar to Backdrop.Mica & Backdrop.Acrylic --> Backdrop.Transparent

While not officially supported someone has managed to do it here, however it is ridiculously over complicated. Official support tracked on Productboard and Github but i doubt it will occur any time soon.

[dotMorten]

Mica and Acrylic is already there but you need to compile the library with the latest preview. Once 1.1 of the windows app sdk ships this will have it too

[Samuel12321]

hi, thanks for the quick reply. I think you may have misinterpreted my question, i was asking about Transparency not Mica and Acrylic

I'm already using Backdrop.Mica, its quite useful.

[dotMorten]

Matching WinUI issue: https://github.com/microsoft/microsoft-ui-xaml/issues/1247

[dotMorten]

See https://github.com/cnbluefire/WinUI3TransparentBackground for an example of a transparent background.

[dotMorten]

Example / use case by @niels9001

https://github.com/dotMorten/WinUIEx/assets/1378165/0e56dc12-6e76-4725-9066-8b05ce935f74

[dotMorten]

Making some progress, and decided to abuse it :-)

https://github.com/dotMorten/WinUIEx/assets/1378165/63ab509c-1dc8-4a8a-8640-cc8f19f103e1

[dotMorten]

Snapshot of @niels9001's design with this new API:

[niels9001]

Snapshot of @niels9001's design with this new API:

That's amazing 😁😁🚀🚀!

I was wondering - do acrylic brushes work with this as well?

EDIT: Just realizing you have that configured :-). Seems that actually blurring of the content below the window doesn't work - e.g. to get the Acrylic backdrop effect.

[dotMorten]

Yeah it's not as blurred as I had hoped

[dotMorten]

Now available in v2.3 release