It is true that a window with the UNDECORATED style will maximize to fill the entire screen. A window with the UNDECORATED_INTERACTIVE style is actually a regular window where the client area has been extended to include the non-client areas as well. As a consequence of this, the window behaves like a regular window, and maximizes to fill the screen's work area (which excludes the task bar).
Am Fr., 30. Juli 2021 um 16:01 Uhr schrieb Dean Wookey <wookey.d...@gmail.com>: > > We would be very interested in this. We've tried to implement some of these > native behaviours ourselves, but there are plenty of holes and we only > support Windows. There are also some bugs which could potentially be > addressed by this, for example > https://bugs.openjdk.java.net/browse/JDK-8133330. > > In my research I came across this: https://github.com/rossy/borderless-window > which addressed all the Windows issues I was coming across at once. Maybe > it's useful. > > Dean >