XSetIconSizes(3x) on Linux
The text b61d9d15cfda, as Debian 3.0 (Woody) shipped it.
allocate icon size structure and set or read a window's WM_ICON_SIZES property
The text b61d9d15cfda, as Debian 3.0 (Woody) shipped it.
allocate icon size structure and set or read a window's WM_ICON_SIZES property