QUERYESCSUPPORTGraphics drivers should support all escapes that are reasonable for a given device. In particular, printer drivers should be prepared applications that assume that the printer-setting escapes, such as STARTDOC and ENDDOC, are always available on high-end devices. All drivers should support the QUERYESCSUPPORT escape which identifies which graphics escapes the driver supports.
Display drivers should support the following escapes:
Printer drivers should support at least the following escapes: