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video_displaydescr(3)		 Arcan Lua API		 video_displaydescr(3)

NAME
       video_displaydescr - retrieve a byte block and a	hash for identifying a
       specific	display

SYNOPSIS
       string:block, string:hash, table:metadata
       video_displaydescr( int:dispid )

DESCRIPTION
       For  dealing  with multiple-monitors where one might need to track set-
       tings, calibration and other monitor individual properties,  some  kind
       of  identity  token is needed. This function returns the	platform iden-
       tity one, which for most	cases should be	 an  EDID    formatted	binary
       blob,  along  with  a  hash value of the	contents of the	block for when
       user-readable names are not needed but a	(hopefully) unique  identifier
       is.

       If  the platform	is capable of parsing the block, higher	level informa-
       tion may	be available via the returned metadata	table. These are  dis-
       play,  platform	and  OS	   dependent.  Possible	keys include: 'error',
       'make', 'model',	'serial'.

EXAMPLE
       function	video_displaydescr0()
	     warning( video_displaydescr(0) );
       end

SEE ALSO:
vidsys				  March	2026		 video_displaydescr(3)

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