Copyright ©1995 by NeXT Computer, Inc.  All Rights Reserved.

5

Display PostScript

PostScript Operators

This section summarizes the PostScript®operators.  The following notation is used:

	Notation	Means
	(Display)	Extensions that were made by Adobe Systems Incorporated and NeXTSTEP for the Display PostScript System.
	(NeXTSTEP)	NeXTSTEP extensions to the Display PostScript System.
	*	Use this operator only if you're bypassing the Application Kit.  Your use of this operator within an application based on the Application Kit will conflict with the Kit's use.

This summary is organized into groups of related operators.  The format used is the same as in the PostScript Language Reference Manual.  Also as in that manual, the operand and result names suggest their types.  Names representing numbers sometimes suggest their purpose (such as angle or window); in operators implemented by NeXTSTEP, these names represent integers except for the following, which are real:

		Coordinates, usually named as (or ending in) x and y
		Widths and heights, usually so named
		Coverage, a measure of transparency in "alpha" operators
		Time (named secs, and measured in seconds)

Several operators can optionally take an encoded number string as an operand, as indicated by numstring in the listing below. Use encoded number strings only when drawing to the screen.  An application can use the global variable NXDrawingStatus to determine whether it's drawing to the screen.

Compositing and Transparency Operators (NeXTSTEP)

srcxsrcywidth height srcgstate

	destxdestyop	composite
		composite rectangle in source graphics state with image in current window
	destxdestywidth height op	compositerect
		composite rectangle of current color and coverage with image in current graphics state

srcxsrcywidth height srcgstate

	destxdestydelta	dissolve
		dissolve between area of window referred to by srcgstate and equal area of window referred to by current graphics state
	window	currentwindowalpha    state
		return information about how window's alpha values are stored

x y width height proc0[... procn-1]

	string bool	readimage
		read image's pixel values and pass to corresponding procedures
	x y width height matrix	sizeimage    pixelswide pixelshigh bits/sample matrix multiproc ncolors get various parameters required for readimage to read the image

pixelswide pixelshigh bits/sample matrix  proc0[... procn] multiproc

	ncolors	alphaimage
		render data and alpha information supplied by one or more procedures

Instance Drawing Operators (NeXTSTEP)

newinstance

remove instance drawing from current window

	bool	setinstance
		turn instance-drawing mode on or off
	x y width height	hideinstance
		remove instance drawing from rectangle

Mouse and Cursor Operators (NeXTSTEP)

	eventnum	stilldown    bool
		test whether left/only mouse button is still down from mouse-down eventnum
	eventnum	rightstilldown    bool
		test whether right mouse button is still down from mouse-down eventnum
	window	currentmouse    x y
		return mouse location in base coordinates *

		buttondown    bool	test whether left/only mouse button is down
		rightbuttondown    bool	test whether right mouse button is down

	x y	setmouse
		set mouse and cursor location
	dx dy	adjustcursor
		adjust cursor location by (dx, dy)
	x y mx my	setcursor
		set cursor to image with upper left at (x, y) and hot spot at offset (mx, my) from (x, y).

		hidecursor	remove cursor from screen
		showcursor	restore cursor to screen
		obscurecursor	remove cursor from screen until mouse moves
		revealcursor	restore cursor if still obscured

	bool context	setwaitcursorenabled
		enable or disable wait cursor
	context	currentwaitcursorenabled    bool return whether wait cursor is enabled

x y width height leftbool rightbool

insidebool userdata trectnum gstate settrackingrect    set tracking rectangle in window referred to by gstate

	trectnum gstate	cleartrackingrect
		clear tracking rectangle in gstate

Event Operators (NeXTSTEP)

	mask window	seteventmask
		set window's Server-level event mask *
	window	currenteventmask    mask
		return window's current Server-level event mask *

type x y time flags window

	subType misc0 misc1 context	posteventbycontext    bool
		post event to specified context
	bool window	setsendexposed
		set whether window-changed events are generated for exposed window areas *
	bool	setflushexposures
		set whether window-exposed and screen-changed subevents are flushed *
	bool context	setwaitcursorenabled
		enable or disable wait cursor operation
	context	currentwaitcursorenabled    bool return status of wait cursor in context
	context	setactiveapp
		establish application having context as the active application*

currentactiveapp    context

return context of active application *

Frame Buffer Operators (NeXTSTEP)

countframebuffers    count

return number of frame buffers in use

	fbnum	currentframebuffertransfer  redproc greenproc blueproc grayproc return current transfer function for fbnum
	index string	framebuffer    name slot unit romid x y width height maxdepth provide information on specific frame buffer

redproc greenproc blueproc

	grayproc fbnum	setframebuffertransfer
		set the transfer function for fbnum

Window Management Operators (NeXTSTEP)

	x y width height type	window    window
		create window and return its number *
	window	termwindow
		remove window from screen list; cause eventual freeing *
	type window	setwindowtype
		set window's type to type
	window	windowdevice
		set device of current graphics state to window
	window	windowdeviceround
		set device to window and round coordinate system to integer pixels

		currentwindow    window	return window number of current device
		setexposurecolor	set exposure color for nonretained window of current graphics state
		flushgraphics	flush drawing in buffered window to screen

	place otherwindow window	orderwindow
		order Above or Below otherwindow (0 for all) or Out of screen list *
	level window	setwindowlevel
		set window tier for window to level
	window	currentwindowlevel    level
		return window tier for window

frontwindow    window

return frontmost window *

	x y width height window	placewindow
		reposition and resize with intersecting pixels unchanged *
	x y window	movewindow
		move lower left to screen coordinates (x, y) *
	window	currentwindowbounds    x y width height return window's location and size in screen coordinates
	x y place otherwindow	findwindow    x' y' window bool
		locate window under screen coordinates (x, y) and give base coordinates (or return false)
	bool window	setautofill
		set whether exposure color fills window's exposed areas automatically
	dict window	setwindowdict
		set window's dictionary *
	window	currentwindowdict    dict
		return window's dictionary *
	context	countscreenlist    count
		return number of windows in screen list that belong to context
	context	countwindowlist    count
		return number of windows that belong to context
	array context	screenlist    subarray
		return window numbers of all windows in screen list that belong to context
	array context	windowlist    subarray
		return window numbers of all windows that belong to context
	context window	setowner
		set owning PostScript context of window to context
	window	currentowner    context
		return PostScript context that owns window
	window	currentdeviceinfo    min max bool return window's sampling density and whether device is color
	depth	setdefaultdepthlimit
		set depth limit for new windows *

currentdefaultdepthlimit    depth return depth limit for new windows *

	window	currentwindowdepth    depth
		return window's depth *
	depth window	setwindowdepthlimit
		set window's depth limit *
	window	currentwindowdepthlimit    depth return window's depth limit *
	dumplevel window	dumpwindow
		report position and number of bytes of backing store for window *
	dumplevel context	dumpwindows
		report position and number of bytes of backing store for all windows owned by context *

statusdict Operators (NeXTSTEP)

		ostype    int	return category of operating system (1=standalone, 3=UNIX®variant)
		osname    string	return name of operating system

Operand Stack Manipulation Operators

	any	pop
		discard top element
	any1any2	exch    any2any1
		exchange top two elements
	any	dup    any any
		duplicate top element
	any1... anynn	copy    any1... anynany1... anyn duplicate top n elements
	anyn... any0n	index    anyn... any0anyn
		duplicate arbitrary element
	an-1... a0n j	roll    a(j-1) mod n... a0an-1... aj mod n roll n elements up j times
	| any1... anyn	clear    |
		discard all elements
	| any1... anyn	count   | any1... anynn
		count elements on stack

mark    mark

push mark on stack

	mark obj1... objn	cleartomark
		discard elements down through mark
	mark obj1... objn	counttomark    mark obj1... objnn count elements down to mark

Arithmetic and Math Operators

	num1num2	add    sum
		num1plus num2
	num1num2	div    quotient
		num1divided by num2
	int1int2	idiv    quotient
		integer divide
	int1int2	mod    remainder
		int1mod int2
	num1num2	mul    product
		num1times num2
	num1num2	sub    difference
		num1minus num2
	num1	abs    num2
		absolute value of num1
	num1	neg    num2
		negative of num1
	num1	ceiling    num2
		ceiling of num1
	num1	floor    num2
		floor of num1
	num1	round    num2
		round num1to nearest integer
	num1	truncate    num2
		remove fractional part of num1
	num	sqrt    real
		square root of num
	num den	atan    angle
		arctangent of num/den in degrees
	angle	cos    real
		cosine of angle (degrees)
	angle	sin    real
		sine of angle (degrees)
	base exponent	exp    real
		raise base to exponent power
	num	ln    real
		natural logarithm (base e)
	num	log    real
		logarithm (base 10)

rand    int

generate pseudo-random integer

	int	srand
		set random number seed

rrand    int

return random number seed

Array Operators

	int	array    array
		create array of length int

[    mark

start array construction

	mark obj0... objn-1	]    array
		end array construction
	array	length    int
		number of elements in array
	array index	get    any
		get array element indexed by index
	array index any	put
		put any into array at index
	array index count	getinterval    subarray
		subarray of array starting at index for count elements
	array1index array2	putinterval
		replace subarray of array1starting at index by array2
	array	aload    a0... an-1array
		push all elements of array on stack
	any0... anyn-1array	astore    array
		pop elements from stack into array
	array1array2	copy    subarray2
		copy elements of array1to initial subarray of array2
	array proc	forall
		execute proc for each element of array
	any0... anyn-1n	packedarray    packedarray
		create packed array consisting of specified n elements

currentpacking    bool

return array packing mode

	bool	setpacking
		set current array packing mode for `{...}' syntax (true = packedarray)
	packedarray	length    int
		number of elements in packedarray
	packedarray index	get    any
		get packedarray element indexed by index
	packedarray index count	getinterval    subarray
		subarray of packedarray starting at index for count elements
	packedarray	aload    a0... an-1packedarray
		push all elements of packedarray on stack
	packedarray1array2	copy    subarray2
		copy elements of packedarray1to initial subarray of array2
	packedarray proc	forall
		execute proc for each element of packedarray

Dictionary Operators

	int	dict    dict
		create dictionary with capacity for int elements
	dict	length    int
		number of key-value pairs in dict
	dict	maxlength    int
		capacity of dict
	dict	begin
		push dict on dict stack

end

pop dict stack

	key value	def
		associate key and value in current dict
	key	load    value
		search dict stack for key and return associated value
	key value	store
		replace topmost definition of key
	dict key	get    any
		get value associated with key in dict
	dict key value	put
		associate key with value in dict

cleardictstack

return dictionary stack to initial state

	dict key	known    bool
		test whether key is in dict
	key	where    dict true
	or false	find dict in which key is defined
	dict1dict2	copy    dict2
		copy contents of dict1to dict2
	dict proc	forall
		execute proc for each element of dict

		errordict    dict	push errordict on operand stack
		systemdict    dict	push systemdict on operand stack
		userdict    dict	push userdict on operand stack
		currentdict    dict	push current dict on operand stack
		countdictstack    int	count elements on dict stack

	array	dictstack    subarray
		copy dict stack into array

String Operators

	int	string    string
		create string of length int
	string	length    int
		number of elements in string
	string index	get    int
		get string element indexed by index
	string index int	put
		put int into string at index
	string index count	getinterval    substring
		substring of string starting at index for count elements
	string1index string2	putinterval
		replace substring of string1starting at index by string2
	string1string2	copy    substring2
		copy elements of string1to initial substring of string2
	string proc	forall
		execute proc for each element of string
	string seek	anchorsearch    post match true
	or string false	determine if seek is initial substring of string
	string seek	search    post match pre true
	or string false	search for seek in string
	string	token    post token true
	or false	read token from start of string

Relational, Boolean, and Bitwise Operators

	any1any2	eq    bool
		test equal
	any1any2	ne    bool
		test not equal
	num1| str1num2| str2	ge    bool
		test greater or equal
	num1| str1num2| str2	gt    bool
		test greater than
	num1| str1num2| str2	le    bool
		test less or equal
	num1| str1num2| str2	lt    bool
		test less than
	bool1| int1bool2| int2	and    bool3| int3
		logical | bitwise and
	bool1| int1	not    bool2| int2
		logical | bitwise not
	bool1| int1bool2| int2	or    bool3| int3
		logical | bitwise inclusive or
	bool1| int1bool2| int2	xor    bool3| int3
		logical | bitwise exclusive or

		true    true	push boolean value true
		false    false	push boolean value false

	int1shift	bitshift    int2
		bitwise shift of int1(positive is left)

Rectangle Operators (Display)

	x y width height	rectfill
	numarray	rectfill
	numstring	rectfill
		fill path consisting of one or more rectangles
	x y width height	rectstroke
	x y width height matrix	rectstroke
	numarray	rectstroke
	numarray matrix	rectstroke
	numstring	rectstroke
	numstring matrix	rectstroke
		stroke path consisting of one or more rectangles
	x y width height	rectclip
	numarray | numstring	rectclip
		intersect inside of current clipping path with supplied path

Control Operators

	any	exec
		execute arbitrary object
	bool proc	if
		execute proc if bool is true
	bool proc1proc2	ifelse
		execute proc1if bool is true, proc2if bool is false
	init incr limit proc	for
		execute proc with values from init by steps of incr to limit
	int proc	repeat
		execute proc int times
	proc	loop
		execute proc an indefinite number of times

		exit	exit innermost active loop
		stop	terminate stopped context

	any	stopped    bool
		establish context for catching stop

countexecstack    int

count elements on exec stack

	array	execstack    subarray
		copy exec stack into array

		quit	terminate interpreter
		start	executed at interpreter startup

Type, Attribute, and Conversion Operators

	any	type    name
		return name identifying any's type
	any	cvlit    any
		make object be literal
	any	cvx    any
		make object be executable
	any	xcheck    bool
		test executable attribute
	array | packedarray | file | string	executeonly    array | packedarray | file | string reduce access to execute-only

array | packedarray | dict | file | string noaccess    array | packedarray | dict | file | string

disallow any access

array | packedarray | dict | file | string readonly    array | packedarray | dict | file | string

reduce access to read-only

array | packedarray | dict | file | string rcheck    bool test read access array | packedarray | dict | file | string wcheck    bool test write access

	numstring	cvi    int
		convert to integer
	string	cvn    name
		convert to name
	numstring	cvr    real
		convert to real
	num radix string	cvrs    substring
		convert to string with radix
	any string	cvs    substring
		convert to string

File Operators

	string1string2	file    file
		open file identified by string1with access string2
	string	deletefile
		remove specified file from device
	string1string2	renamefile
		change file name from string1to string2
	pattern proc scratch	filenameforall
		process each file whose name matches pattern with proc
	file	closefile
		close file
	file	read    int true
	or false	read one character from file
	file int	write
		write one character to file
	file string	readhexstring    substring bool
		read hex from file into string
	file string	writehexstring
		write string to file as hex
	file string	readstring    substring bool
		read string from file
	file string	writestring
		write characters of string to file
	file string	readline    substring bool
		read line from file into string
	file	token    token true
	or false	read token from file
	file int	setfileposition
		position next read or write in file to int
	file	fileposition    int
		return current position in already open file
	file	bytesavailable    int
		number of bytes available to read

flush

send buffered data to standard output file

	file	flushfile
		send buffered data or read to EOF
	file	resetfile
		discard buffered characters
	file	status    bool
		return status of file
	string	status    pages bytes referenced created true
	or false	(Display) return status of file
	string	run
		execute contents of named file

currentfile    file

return file currently being executed

	string	print
		write characters of string to standard output file
	any	=
		write text representation of any to standard output file
	| any1... anyn	stack    | any1... anyn
		print stack nondestructively using =
	any	==
		write syntactic representation of any to standard output file
	| any1... anyn	pstack    | any1... anyn
		print stack nondestructively using ==

prompt

executed when ready for interactive input

	bool	echo
		turn on/off echoing

Structured Output Operators (Display)

	int	setobjectformat
		set format for object sequences written by printobject and writeobject

currentobjectformat    int

return current object format used by printobject and writeobject

	obj tag	printobject
		write binary object sequence to standard output file
	file obj tag	writeobject
		write binary object sequence to file

Virtual Memory Operators (Display)

save    save

create VM snapshot

	save	restore
		restore VM snapshot
	dict key	undef
		remove key and associated value from dict
	bool	setshared
		set private or shared VM allocation mode

currentshared    bool

return current value of VM allocation mode

	any	scheck    bool
		return whether any is sharable
	int	vmreclaim
		control garbage collection mode

vmstatus    level used maximum

report VM status

Context Operators (Display)

	mark obj1... objnproc	fork    context
		create new context within private VM of current context
	context	join    mark obj1... objn
		when context ceases execution, push its operand stack onto current context's operand stack
	context	detach
		cause context to terminate when it's done executing

		currentcontext    context	return integer identifying current context
		lock    lock	create lock
		condition    condition	create condition object

	lock proc	monitor
		acquire lock, execute proc, and then release lock
	lock condition	wait
		release lock, wait for condition, and reacquire lock
	condition	notify
		resume execution of contexts waiting for condition

yield

suspend current context until other contexts sharing same VM have executed

Miscellaneous Operators

	proc	bind    proc
		replace operator names in proc by operators
	index name	defineusername
		(Display) associate index with name in user name table

		null    null	push null on operand stack
		usertime    int	(Display) return PostScript interpreter execution time
		realtime    int	(Display) return value of clock that counts in real time
		version    string	interpreter version
		nextrelease    string	(NeXTSTEP) NeXTSTEP version information

	bool	setwriteblock
		(NeXTSTEP) set whether Window Server blocks

		currentwriteblock    bool	(NeXTSTEP) return whether Server blocks
		currentuser    uid gid	(NeXTSTEP) return user id and group id of currently logged-in user

currentrusage    ctime utime stime msgsend msgrcv nsignals nvcsw nivcsw (NeXTSTEP) report Window Server's resource usage

	soundname priority	playsound
		(NeXTSTEP) play soundname at given priority level

Graphics State Operators

		gsave	save graphics state
		grestore	restore graphics state
		grestoreall	restore to bottommost graphics state
		initgraphics	(standard) reset graphics state parameters (NeXTSTEP) also reset alpha and instancing

	num	setlinewidth
		set line width

currentlinewidth    num

return current line width

	int	setlinecap
		set shape of line ends for stroke (0=butt, 1=round, 2=square)

currentlinecap    int

return current line cap

	int	setlinejoin
		set shape of corners for stroke (0=miter, 1=round, 2=bevel)

currentlinejoin    int

return current line join

	num	setmiterlimit
		set miter length limit

currentmiterlimit    num

return current miter limit

	array offset	setdash
		set dash pattern for stroking

currentdash    array offset

return current dash pattern

	num	setflat
		set flatness tolerance

currentflat    num

return current flatness

	patternname	setpattern
		(NeXTSTEP) set pattern for drawing
	num	setgray
		set color to gray value from 0 (black) to 1 (white)

currentgray    num

return current gray

	hue sat brt	sethsbcolor
		set color given hue, saturation, brightness

currenthsbcolor    hue sat brt

return current color hue, saturation, brightness

	red green blue	setrgbcolor
		set color given red, green, blue

currentrgbcolor    red green blue return current color red, green, blue

	coverage	setalpha
		(NeXTSTEP) set current coverage

currentalpha    coverage

(NeXTSTEP) return current coverage setting

	cyan magenta yellow black	setcmykcolor
		set current color parameter in graphics state

currentcmykcolor    cyan magenta yellow black return current color parameter in graphics state

redproc greenproc

	blueproc grayproc	setcolortransfer
		set current transfer function parameters for specified colors

currentcolortransfer    redproc greenproc blueproc grayproc return current transfer function parameters for specified colors

	proc	setblackgeneration
		set current black generation function parameter in graphics state

currentblackgeneration    proc return current black generation function parameter in graphics state

	proc	setundercolorremoval
		set current undercolor removal function parameter in graphics state

currentundercolorremoval    proc return current undercolor removal function parameter in graphics state

redfrequency redangle redproc greenfrequency greenangle greenproc bluefrequency blueangle blueproc grayfrequency

	grayangle grayproc	setcolorscreen
		set all twelve current halftone screen parameters in graphics state

currentcolorscreen    redfrequency redangle redproc greenfrequency greenangle greenproc bluefrequency blueangle blueproc grayfrequency grayangle grayproc return all twelve current halftone screen parameters in graphics state

width height bits/sample matrix

	proc0[... procn] multiproc ncolors	colorimage
		render sampled image with 1, 3, or 4 color values
	freq angle proc	setscreen
	freq angle halftone	setscreen
		set halftone screen

currentscreen    freq angle proc

currentscreen    60 0 halftone

return current halftone screen or dictionary

	proc	settransfer
		set gray transfer function

currenttransfer    proc

return current transfer function

Graphics State Object Operators (Display)

gstate    gstate

create graphics state object

	gstate	setgstate
		replace current graphics state by value of gstate
	gstate	currentgstate    gstate
		fill gstate with copy of current graphics state

Halftone Definition Operators (Display)

	dict	sethalftone
		establish dict as current halftone dictionary

currenthalftone    dict

return current halftone dictionary

	x y	sethalftonephase
		(Display) set current halftone phase parameters

currenthalftonephase    x y

(Display) return current halftone phase parameters

Coordinate System and Matrix Operators

	x y	basetocurrent    x' y'
		(NeXTSTEP) convert from base to current coordinate system
	x y	basetoscreen    x' y'
		(NeXTSTEP) convert from base to screen coordinate system
	x y	currenttobase    x' y'
		(NeXTSTEP) convert from current to base coordinate system
	x y	currenttoscreen    x' y'
		(NeXTSTEP) convert from current to screen coordinate system
	x y	screentobase    x' y'
		(NeXTSTEP) convert from screen to base coordinate system
	x y	screentocurrent    x' y'
		(NeXTSTEP) convert from screen to current coordinate system

		matrix    matrix	create identity matrix
		initmatrix	set CTM to device default

	matrix	identmatrix    matrix
		fill matrix with identity transform
	matrix	defaultmatrix    matrix
		fill matrix with device default matrix
	matrix	currentmatrix    matrix
		fill matrix with CTM
	matrix	setmatrix
		replace CTM by matrix
	txty	translate
		translate user space by (tx, ty)
	txtymatrix	translate    matrix
		define translation by (tx, ty)
	sxsy	scale
		scale user space by sxand sy
	sxsymatrix	scale    matrix
		define scaling by sxand sy
	angle	rotate
		rotate user space by angle degrees
	angle matrix	rotate    matrix
		define rotation by angle degrees
	matrix	concat
		replace CTM by matrix CTM
	matrix1matrix2matrix3	concatmatrix    matrix3
		fill matrix3with matrix1 matrix2
	x y	transform    x' y'
		transform (x, y) by CTM
	x y matrix	transform    x' y'
		transform (x, y) by matrix
	dx dy	dtransform    dx' dy'
		transform distance (dx, dy) by CTM
	dx dy matrix	dtransform    dx' dy'
		transform distance (dx, dy) by matrix
	x' y'	itransform    x y
		inverse transform (x', y') by CTM
	x' y' matrix	itransform    x y
		inverse transform (x', y') by matrix
	dx' dy'	idtransform    dx dy
		inverse transform distance (dx', dy') by CTM
	dx' dy' matrix	idtransform    dx dy
		inverse transform distance (dx', dy') by matrix
	matrix1matrix2	invertmatrix    matrix2
		fill matrix2with inverse of matrix1

Path Construction Operators

		newpath	initialize current path to be empty
		currentpoint    x y	return current point coordinate

	x y	moveto
		set current point to (x, y)
	dx dy	rmoveto
		relative moveto
	x y	lineto
		append straight line to (x, y)
	dx dy	rlineto
		relative lineto
	x y r ang1ang2	arc
		append counterclockwise arc
	x y r ang1ang2	arcn
		append clockwise arc
	x1y1x2y2r	arcto    xt1yt1xt2yt2
		append tangent arc
	x1y1x2y2x3y3	curveto
		append Bezier cubic section
	dx1dy1dx2dy2dx3dy3	rcurveto
		relative curveto

		closepath	connect subpath back to its starting point
		flattenpath	convert curves to sequences of straight lines
		reversepath	reverse direction of current path
		strokepath	compute outline of stroked path

	string bool	charpath
		append character outline to current path

		clippath	set current path to clipping path
		pathbbox    llxllyurxury	return bounding box of current path

	move line curve close	pathforall
		enumerate current path

		initclip	set clipping path to device default
		clip	establish new clipping path
		eoclip	clip using even-odd inside rule

User Path Operators (Display)

	llxllyurxury	setbbox
		establish bounding box for current path
	x1y1x2y2r	arct
		append arc of circle to current path
	userpath	uappend
		append userpath to current path
	bool	upath    userpath
		create userpath as copy of current path
	userpath	ufill
		fill userpath as if by using fill operator
	userpath	ueofill
		fill userpath as if by using eofill operator
	userpath	ustroke
	userpath matrix	ustroke
		stroke userpath as if by using stroke operator
	userpath	ustrokepath
	userpath matrix	ustrokepath
		replace current path with userpath and stroke result

ucache

store enclosing user path if not already stored

		ucachestatus    mark bsize bmax rsize rmax blimit

report status of user path cache

	mark blimit	setucacheparams
		set user path cache parameters

View Clip Operators (Display)

		viewclip	replace view clipping path with copy of current path
		eoviewclip	replace view clipping path with current path using even-odd inside rule

	x y width height	rectviewclip
	numarray numstring	rectviewclip
		replace view clipping path with specified path

		viewclippath	replace path with copy of current view clipping path
		initviewclip	replace view clipping path with one equal to imageable area

Painting Operators

		erasepage	(NeXTSTEP) erase entire window to opaque white (standard) paint current page white
		fill	fill current path with current color
		eofill	fill using even-odd rule
		stroke	draw line along current path

width height bits/sample matrix proc image    render sampled image onto current page

	width height invert matrix proc	imagemask
		render mask onto current page

Window System Support Operators (Display)

wtranslation    x y

return translation from window origin to device space origin

	x y	infill    bool
	userpath	infill    bool
		return true if pixel at (x, y) (or any pixels in userpath) would be painted by fill of current path
	x y	ineofill    bool
	userpath	ineofill    bool
		return true if pixel at (x, y) (or any pixels in userpath) would be painted by eofill of current path
	x y userpath	inufill    bool
	userpath1userpath2	inufill    bool
		return true if pixel at (x, y) (or any pixels in userpath1) would be painted by ufill of current path
	x y userpath	inueofill    bool
	userpath1userpath2	inueofill    bool
		return true if pixel at (x, y) (or any pixels in userpath1) would be painted by ueofill of current path
	x y	instroke    bool
	userpath	instroke    bool
		return true if pixel at (x, y) (or any pixels in userpath) would be painted by stroke of current path
	x y userpath	inustroke    bool
	x y userpath matrix	inustroke    bool
	userpath1userpath2	inustroke    bool
	userpath1userpath2matrix	inustroke    bool
		return true if pixel at (x, y) (or any pixels in userpath1) would be painted by ustroke of current path

deviceinfo    dict

return dict containing static information about current device

Device Setup and Output Operators

	proc window	setshowpageprocedure
		set the procedure that's executed during showpage
	window	currentshowpageprocedure   proc return the procedure that's executed during showpage

		showpage	output and reset current page
		copypage	output current page
		nulldevice	install no-output device

width height bbox matrix hostname portname pixelencoding machportdevice    (NeXTSTEP) set up PostScript device for generic rendering service

Scan Conversion Operators (Display)

	bool	setstrokeadjust
		turn automatic stroke adjustment on or off