setmonitor(3G)							setmonitor(3G)

NAME    [Toc]    [Back]

     setmonitor	- sets the monitor type

C SPECIFICATION    [Toc]    [Back]

     void setmonitor(short mtype)

PARAMETERS    [Toc]    [Back]

     mtype   expects a symbolic	constant that identifies the video format to
	     be	provided.  There are several constants defined for this
	     parameter:

	     HZ30 selects a 30Hz interlaced video format.

	     HZ30_SG selects a 30 Hz interlaced	with sync on green video
	     format.

	     HZ50 selects a 50 Hz noninterlaced	video format.

	     HZ60 selects a 60 Hz noninterlaced	video format.

	     HZ70 selects a 70 Hz noninterlaced	video format.

	     HZ72 selects a 72 Hz noninterlaced	video format.

	     HZ76 selects a 76 Hz noninterlaced	video format.

	     IRIS3K selects a 60Hz (1024x768 visible) noninterlaced video
	     format, if	the video hardware supports it

	     NTSC selects the RS-170A 525 line component RGB video format (646
	     x 486 visible).

	     PAL selects a 625 line component RGB video	format (768 x 576
	     visible).

	     STR_RECT enables a	120 Hz stereo video format, if the video
	     hardware supports it (otherwise this is ignored).

	     STR_BOT enables a 120 Hz stereo video format, if the video
	     hardware supports it (otherwise this is ignored). It informs the
	     X server that the bottom half of the screen is to be displayed as
	     the primary buffer.

	     STR_TOP enables a 120 Hz stereo video format, if the video
	     hardware supports it (otherwise this is ignored). It informs the
	     X server that the top half	of the screen is to be displayed as
	     the primary buffer.

	     A343 selects the RS-343 component RGB video format	(1280 x	960
	     visible), if the video hardware supports it (otherwise this is
	     ignored).




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setmonitor(3G)							setmonitor(3G)



	     HDTV selects the HDTV video format	if the video hardware supports
	     it	(otherwise this	is ignored).

	     VGA selects the VGA component RGB video format (640 x 496
	     visible) if the video hardware supports it	(otherwise this	is
	     ignored).

DESCRIPTION    [Toc]    [Back]

     setmonitor	sets the monitor to the	indicated video	format,	depending on
     mtype.

SEE ALSO    [Toc]    [Back]

     getmonitor, getothermonitor, setvideo, getvideo, setmon(1G),

NOTES    [Toc]    [Back]

     This routine has been superseded by the functions that are	part of	the X
     extension XSGIvc(3) for those hardware architectures that natively
     support OpenGL.

     This routine is available only in immediate mode.

     The symbolic values for mtype mentioned above are defined in <gl/get.h>.

     For compatibility with previous products, NTSC, PAL, and HZ30 do not
     enable sync on green by default.  You must	use setvideo to	enable sync on
     green if your video equipment requires it.

     The IRIS-4D B, G, GT, GTX,	VGX, and VGXT have a separate sync connector
     which provides a 4V P-P TTL level sync signal for all video formats; this
     sync signal is present even when sync on green has	been disabled, and may
     only be used with external	video equipment	capable	of accepting a 4V P-P
     sync signal.

     To	get composite video output from	your IRIS-4D, you may choose to
     purchase an encoder option	such as	the CG3	or BVO (which encodes the 525
     or	625 component RGB formats into true NTSC and PAL respectively),	or you
     may choose	to purchase a video peripheral product (such as	VideoFramer or
     VideoCreator) which provide composite output from an external frame
     buffer.

     Iris Indigo Entry does not	support	setmonitor so only HZ60	monitors are
     supported.

     Iris Elan and Extreme support NTSC, PAL, IRIS3K, HZ50, HZ60, HZ72,
     STR_RECT, STR_BOT,	STR_TOP	and RS-343 monitors.

     Indy supports NTSC, PAL, IRIS3K, HZ50, HZ60, HZ70,	HZ72, HZ76, STR_RECT,
     STR_BOT and STR_TOP.


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