using gdk_screen_get_monitor_geometry (xrandr) I can get the resolutions for separate monitors (for example when there are 2 monitors used as a single screen like nvidias twinview)
However _NET_WORKAREA seems to give one giant area even if the resolution of the other monitor is smaller. (a panel at the bottom of the second monitor would appear to be inside this work area)
How can I get the actual workarea of other monitors even getting struts there seems no support for separate monitors just the main one...