DEV_NEXT
Syntax |
DEV_NEXT (n) n=1..8 |
Location |
DEV device, GOLD CARD, ST/QL, SMS |
The function DEV_NEXT returns the number of the next DEVice where a given DEV will look on next if a file was not found. If a DEV is not defined or has the search option disabled, DEV_NEXT returns zero (0), otherwise an integer from 1 to 8 will be returned.
Example
A program which lists a search path:
100 INPUT "Which DEV device (1..8)?"!n
110 IF n<1 OR n>8 THEN RUN
120 DIM checked%(8)
130 REPeat SPate
140 IF NOT DEV_NEXT(n) OR checked%(n): EXIT SPate
150 PRINT DEV_USE$(n)
160 checked%(n)=1
170 n=DEV_NEXT(n)
180 END REPeat SPate
If you understood this example, then you will know exactly how the DEV device works.
CROSS-REFERENCE