|
| |
INT 21 - DOS 3.x - LOCK/UNLOCK FILE ACCESS
|
Input |
DOS1 |
N |
DOS2 |
N |
DOS3 |
Y |
DOS5 |
Y |
Output |
|
AX |
5Ch |
0=Lock,1=Unlock |
Error
Code |
AX |
|
BX |
File
Handle |
|
|
BX |
|
|
|
|
|
|
CX |
|
CX:DX |
Starting
offset of Lock Region |
|
|
DX |
|
SI:DI |
Size
of Region to Lock |
Set
if Error |
CF |
See Also 3Dh 59h Error Codes |