Raster to Postscript

[dsumpter]

Hi there,

I'd like to output Postscript versions of raster objects. e.g. the Two 
dimensional display of Heatbugs. I've managed to output graphs and barcharts 
but 
am not sure what the equivalent mechanism is with raster diplays.I only need 
the 
contents of the window, not necesarilly the whole thing.

Any ideas how this can be done easily? 

Thanks,

David.