FT_CHDIR() Change the current directory
FT_DEFAULT() Retrieve and optionally change the current default drive
FT_DOSVER() Return the current DOS major and minor version as a string
FT_DSKFREE() Return the amount of available disk space
FT_DSKSIZE() Return the maximum capacity of a fixed disk
FT_FLOPTST() Test diskette drive status
FT_HANDCNT() Count number of available DOS (not network) file handles
FT_INP() Retrieve a byte from a specified I/O port
FT_INT86() Execute a software interrupt
FT_ISPRINT() Check printer status
FT_ISSHARE() Determine if DOS "Share" is installed
FT_MKDIR() Create a subdirectory
FT_OUTP() Write a byte to a specified I/O port
FT_PEEK() Retrieve a byte from a specified memory location.
FT_POKE() Write a byte to a specified memory location
FT_REBOOT() Force a warm or cold boot
FT_RMDIR() Delete a subdirectory
FT_SETDATE() Set the DOS system date
FT_SETTIME() Set the DOS system time
FT_SYSMEM() Determine the amount of conventional memory installed
FT_TEMPFIL() Create a file with a unique name
Count number of available DOS (not network) file handles
FT_HANDCNT() -> nHandles
numeric, long integer
FT_HANDCNT() finds the internal DOS Device Control Blocks used for
storing file information and counts the number of DCB entries. The
DCB is set up by reading the FILES= line in CONFIG.SYS, and there
is one DCB entry for each file handle.
NOTE: For Novell networks, the number of network file handles is
controlled by SHELL.CFG. To date, I know where this information
is stored after SHELL.CFG has been read, but have not come up
with a reliable way to retrieve the information. There is no
public variable associated with the storage location, and the
location can change from version to version of NETx.EXE.
Novell Tech Support's response, though friendly, was "Nope, we
don't know of a way for you to do it, either. Good luck."
nHandles := FT_HANDCNT()
? "This PC has " + LTRIM( STR( nHandles ) ) + " set by CONFIG.SYS."
Author: Bob Clarke