AT&T UNIX™PC Unix System V Users Manual - tenox

SYSLOCAL ( 2) SYSLOCAL ( 2)
SYSL_ALLOCDRV Allocatesjdeallocates space for a loadable
driver and returns driver status. The second
argument is one of the following:
DRV ALLOC allocates space
DRVUNALLOC releases allocated space �
DRVSTAT returns driver status i
The third argument is a struct drvalloc *
You must be superuser to execute DRVAL-
LOC and DRVUNALLOC.
SYSL_BINDDRV Loads/unloads a loadable driver. The second
argument is either DRVBIND for loading or
DRVUNBIND for unloading. The third argument
is a struct drvbind * . You must be
superuser to execute.
The following two calls support installable fonts.
SYSL_LFONT Installs a font.
SYSL_UFONT Deinstalls a font.
In both cases, two arguments are required: the font file pathname
(dummy pointer for SYSL_UFONT) and the font slot number (0
to 15). Again, you must be superuser to execute. See window(1)
for additional font information.
Supplying a font slot number between 0 and 7 causes the font to
be inherited at that slot number by all subsequent windows. Preloading
fonts into slots 8-15 allows these fonts to be installed
without going to the file system so they can be loaded rapidly.
This is useful for applications which refer to more than 8 fonts
because the font activity is more efficient.
If you attempt to load a font into a slot which is currently occupied,
you will not get an error condition, but rather, the old font
will be swapped out and the new one loaded in. You can also
deinstall a font from slots 0 through 7, if the font to be deinstalled
is not being accessed. If it is being accessed ERRNO is set to
EBUSY.
- 2 -
·�
I