| Published By | Date | Version | Knowledge Level | Keywords |
|---|---|---|---|---|
| Sprezzatura Ltd | 01 DEC 1990 | 2.021+ | EXPERT | VIDEO.RW |
A discussion with RevTech identified the fact that VIDEO.RW is actually not a subroutine but a function and returns a value reflecting the success of the last operation. Thus far, the following codes have been identified (where calling syntax is RESULT = VIDEO.RW(X1, Y1, X2, Y2, ACTION, IMAGE))
| Code | Meaning |
|---|---|
| 0 | OK |
| 1 | Out of memory during read attempt |
| 2 | Display not memory mapped (historical from Generic Rev days) |
| 3 | X1/X2/Y1/Y2 too small, X2/Y2 too big |
| 4 | X1/Y1 too big |
| 5 | Invalid ACTION |
| 6 | IMAGE doesn't fit (too big/small) |
(Volume 2, Issue 7, Page 7)