Here's Xorg's nested X server if you want to see how much C code it takes. http://cgit.freedesktop.org/xorg/xserver/tree/hw/kdrive/ephyr http://cgit.freedeskto

Here's Xorg's nested X server if you want to see how much C code it takes. http://cgit.freedesktop.org/xorg/xserver/tree/hw/kdrive/ephyr http://cgit.freedesktop.org/xorg/xserver/tree/hw/kdrive/ephy...