DOS/32 Advanced DOS Extender - Programmer's Reference


2.27 - DPMI function 0304h - Free Real Mode Callback Address

Releases a real mode callback address that was previously allocated with the Allocate Real Mode Callback Address DPMI function 0303h.

 

In: AX = 0304h
CX:DX = real mode callback address to be freed
Out:

if successful:
CF clear

if failed:
CF set
AX = error code

8024h - invalid callback address

Notes:

a) Real mode callbacks are a limited system resource. Client should release any callback that it is no longer using.

 


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