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Copyright 1991 David Jurgens |
INT 21,45 - Duplicate File Handle
AH = 45h
BX = file handle
on return:
AX = new file handle if CF not set
= error code if CF set (see DOS ERROR CODES)
- gets another file handle for the same file
- both file handles move in unison
- often used to flush file data and update a file directory
entry without closing the initial file
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| Esc or Alt-X to exit |
int 21,45 |
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