Release real mode callback.
Source position: go32.pp line 143
| function free_rm_callback( | 
| var intaddr: tseginfo | 
| ):Boolean; | 
Releases a real mode callback address that was previously allocated with the get_rm_callback function.
Parameters:
Return values: True if successful, False if not
For an example, see get_rm_callback.
Check the int31error variable.
| 
 | Set real mode interrupt handler. | |
| 
 | Return real mode callback. |