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Int 31H Function 0304H
Free Real Mode Callback Address
[0.9]
Releases a real mode callback address that was previously allocated
with the Allocate Real Mode Callback Address function (
Int 31H Function 0303H).
Call With
AX = 0304H
CX:DX = real mode callback address to be freed
Returns
if function successful
Carry flag = clear
if function unsuccessful
Carry flag = set
AX = error code
8024H invalid callback address
Notes
- Real mode callbacks are a limited system resource. A client
should release any callback that it is no longer using.