Detect postscript printer

I need VB OR C++ code for detecting whether a printer is set up as a postscript printer or not. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows - all 32 bit versions