runtime printer driver configuration

Variables
static bool	Fl::cfg_prn_gdi = 0
	GDI rendering available, usually on Windows systems.
static bool	Fl::cfg_prn_ps = 0
	PostScript rendering available, usually on Linux systems.
static bool	Fl::cfg_prn_quartz = 0
	Quartz rendering available, usually on OS X systems.

Detailed Description