The key argument to Transparency (https://www.mushclient.com/scripts/doc.php?function=Transparency) doesn't appear to work for me in Wine. Does it work in non-XP Windows these days?
Does Transparency key work anymore?
Posted by Fiendish on Sat 04 Jul 2020 06:53 PM — 3 posts, 16,368 views.
The relevant underlying function call is SetLayeredWindowAttributes, and see this page:
https://www.winehq.org/pipermail/wine-bugs/2010-October/253627.html
Forms with transparent regions works OK in Windows XP but the transparency not work in Wine 1.3.2.
Transparency is obtained using the Windows API call to SetLayeredWindowAttributes.
Possibly this is a Wine issue.
Testing under Windows 10 it appears to work as documented.