Using GTK without DISPLAY
===

Is it possible to use GTK without a valid X display?  

I want to use GTK with Webkit, but for now I'm only interested in using the DOM functions to experiment, so I have no need to actually display anything.  It's very convenient for me to do this over an SSH connection on a server that has no display.  

But, without a `DISPLAY` environment variable, `gtk_init()` simply fails with the message:

`Gtk-WARNING **: cannot open display:`

Is there anyway to use GTK without a display?