Windows 3.1 Device Drivers (ddag31qh.hlp) (Table of Contents; Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
About the Graphics Escapes
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Graphics 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:
 
♦  QUERYESCSUPPORT
 
♦  GETCOLORTABLE
 
♦  SETCOLORTABLE
 
Printer drivers should support at least the following escapes:
 
♦  QUERYESCSUPPORT
 
♦  SETABORTPROC
 
♦  STARTDOC
 
♦  NEWFRAME
 
♦  ENDDOC
 
♦  ABORTDOC
 
♦  NEXTBAND
 
Obsolete Escapes
 
The EXTTEXTOUT and SELECTPAPERSOURCE escapes are now obsolete. EXTTEXTOUT
has been replaced by the ExtTextOut function, and SELECTPAPERSOURCE has been
superseded by the GETSETPAPERBINS escape.
 
Escape Reference
 
The following is an alphabetical listing of the graphics-driver escapes.
 
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