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valid_vid(3)			 Arcan Lua API			  valid_vid(3)

NAME
       valid_vid  -  Check  if vid matches a valid object or not, also accepts
       NULL/BADID arguments.

SYNOPSIS
       true or false
       valid_vid(

       vid, type )

DESCRIPTION
       Due to the design decision to use a numerical type to reference the in-
       ternal engine type most visible entities, a number of situations	 arise
       where one might need to test if a specific numeric value	maps to	a cor-
       responding  engine  object before calling some functions	that require a
       valid VID  or even a valid VID  that is also connected to a frameserver
       or other	secondary processing types.

NOTES
       1      Possible values for type	are TYPE_FRAMESERVER  and TYPE_	3 DOB-
	      JECT .  requirement

EXAMPLE
       function	valid_vid0()
	     a = fill_surface(32, 32, 255, 0, 0, 0);
	     print(valid_vid(a));
	     print(valid_vid(NULL));
	     print(valid_vid(BADID));
       end

vidsys				  April	2025			  valid_vid(3)

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