XGetWMSizeHints(3) on Linux
The text a6475baf5c2e, as Debian 13 (Trixie) shipped it.
allocate size hints structure and set or read a window's WM_NORMAL_HINTS property
The text a6475baf5c2e, as Debian 13 (Trixie) shipped it.
allocate size hints structure and set or read a window's WM_NORMAL_HINTS property