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NAME
_IntuitionBase auto-open
SYNOPSIS
FUNCTION
If the _IntuitionBase base variable is referenced (i.e. extern) but
not declared then _IntuitionBase will be automatically declared in
the intlib module of auto.lib. Additionally, auto.lib adds routines
to the autoinit and autoexit sequences called by c.a that
automatically opens "intuition.library" before _main and
closes it after _exit.
If the auto-open fails the program will be aborted before _main is
ever called.
The autoexit routine that closes the library first checks to see if
the base variable is NULL and skips trying to close the library if
so.
NOTE
Programs that use this auto-open feature by simply calling graphics
library functions without bothering to declare or open the library
will only compile under DICE. When compiled with other compilers a
link error will occur since the linker will not be able to find any
declared storage for the base variable, only references.
EXAMPLE
/*
* Example program which just calls an intuition.library function
* without bothering to open the library.
*/
main()
{
LockIBase();
UnlockIBase();
}
SEE ALSO