DEVOPTS

DEVOPTS

Specifies the hardware capabilities of the device.

Used in: GDEVICE procedure; GDEVICE Parameters window

Default: device dependent

Syntax
Device Capabilities Represented in the DEVOPTS String
Details

Syntax

DEVOPTS='hardware-capabilities-hex-string'X

hardware-capabilities-hex-string

is a hexadecimal string 16 characters long that must be completely filled. The following table lists the hardware capabilities of each bit:

Device Capabilities Represented in the DEVOPTS String
Bit On Capability

0 hardware circle generation

1 hardware pie fill supported

2 scalable hardware characters

3 device is a CRT-type (See TYPE device parameter)

4 translate table needed for non-ASCII hosts

5 hardware polygon fill available

6 hardware characters cell-aligned

7 user-definable colors supported

8 hardware polygons with multiple boundaries supported

9 not used

10 not used

11 adjustable hardware line width

12 double-byte font (non-US) supported

13 hardware repaint supported

14 hardware characters supported

15 no hard limit on x coordinate

16 no hard limit on y coordinate

17 not used

18 ability to justify proportional text

19 driver can produce dependent catalog entries

20 device cannot draw in default background color

21 flush device buffer when filled

22 colors defined using HLS

23 colors defined using RGB

24 not used

25 polyline supported

26 polymarker supported

27 graphics clipping supported

28 not used

29 linkable device driver

30 pick CHARTYPE by name in CHARREC entries

31 device dependent pattern support

32 treat SCALABLE=Y CHARREC as metric

33 size CHARTYPE as HW from CHARREC entries

34 device supports rotated arcs

35 device supports target fonts

36 device supports drawing images

37 device supports multiple color maps

38 image rotation direction

39 device requires sublib for image rotation

40 device is a 24 bit truecolor machine

41 device supports setting font attributes

42 use scan line font rendering

43 device can scale images

44 text clipping supported

45 static color device

46 driver does prolog processing

47 driver does epilog processing

48 driver output only uses a file

49 driver output requires a directory or PDS

50 autosize text to fit rows and columns

51 default binding is SHORTEDGE

52 driver supports duplex printing

53 device does right edge binding

54 ActiveX device

55 Java device

***Device Capabilities Represented in the DEVOPTS String***
Bit On	Capability
0	hardware circle generation
1	hardware pie fill supported
2	scalable hardware characters
3	device is a CRT-type (See TYPE device parameter)
4	translate table needed for non-ASCII hosts
5	hardware polygon fill available
6	hardware characters cell-aligned
7	user-definable colors supported
8	hardware polygons with multiple boundaries supported
9	not used
10	not used
11	adjustable hardware line width
12	double-byte font (non-US) supported
13	hardware repaint supported
14	hardware characters supported
15	no hard limit on x coordinate
16	no hard limit on y coordinate
17	not used
18	ability to justify proportional text
19	driver can produce dependent catalog entries
20	device cannot draw in default background color
21	flush device buffer when filled
22	colors defined using HLS
23	colors defined using RGB
24	not used
25	polyline supported
26	polymarker supported
27	graphics clipping supported
28	not used
29	linkable device driver
30	pick CHARTYPE by name in CHARREC entries
31	device dependent pattern support
32	treat SCALABLE=Y CHARREC as metric
33	size CHARTYPE as HW from CHARREC entries
34	device supports rotated arcs
35	device supports target fonts
36	device supports drawing images
37	device supports multiple color maps
38	image rotation direction
39	device requires sublib for image rotation
40	device is a 24 bit truecolor machine
41	device supports setting font attributes
42	use scan line font rendering
43	device can scale images
44	text clipping supported
45	static color device
46	driver does prolog processing
47	driver does epilog processing
48	driver output only uses a file
49	driver output requires a directory or PDS
50	autosize text to fit rows and columns
51	default binding is SHORTEDGE
52	driver supports duplex printing
53	device does right edge binding
54	ActiveX device
55	Java device

Details

Each capability in the table corresponds to a bit in the value of the DEVOPTS device parameter. For example, if your device can generate hardware pie fills, the second bit in the first byte of the DEVOPTS string should be turned on if you want the driver to use that capability. If your device is capable of generating only hardware circles and pie fills, specify a value of 'C000000000000000'X as your DEVOPTS value (the first byte is '1100' so the first 2 bits of the first byte are set to 1). Many of the hardware capabilities specified in the DEVOPTS string are overridden by graphics options or other device parameters.

CAUTION:: Do not modify the DEVOPTS device parameter unless you are building a Metagraphics driver. If you want to prevent an Institute-supplied driver from using certain hardware capabilities, change the specific device parameter or use the corresponding graphics option.

If the DEVOPTS string indicates that a capability is available, the driver uses it unless it is explicitly disabled by another device parameter or graphics option. If the DEVOPTS string indicates that the capability is not available, it is not used by the driver, even if the corresponding device parameter or graphics option indicates that it should be used. For example, if the DEVOPTS value indicates that the device can do a hardware pie fill, the driver uses the hardware pie fill capability unless the PIEFILL device parameter is set to N or NOPIEFILL has been specified in a GOPTIONS statement. However, if the DEVOPTS device parameter indicates that the device cannot do a hardware pie fill, the driver does not attempt to use one, even if the PIEFILL device parameter is set to Y or PIEFILL is used in a GOPTIONS statement.

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Used in:	GDEVICE procedure; GDEVICE Parameters window
Default:	device dependent