XSetClassHint(3) on Linux
The text 327a1d6886dd, as Debian 11 (Bullseye) shipped it.
allocate class hints structure and set or read a window's WM_CLASS property
The text 327a1d6886dd, as Debian 11 (Bullseye) shipped it.
allocate class hints structure and set or read a window's WM_CLASS property