en:ibm:prcp:vio:dereg

VioDeRegister

Bindings: C, MASM

This call deregisters a video subsystem previously registered within a session.

VioDeRegister ( )

rc (USHORT) - return Return code descriptions are:

0 NO_ERROR
404 ERROR_VIO_DEREGISTER
430 ERROR_VIO_ILLEGAL_DURING_POPUP
465 ERROR_VIO_DETACHED
494 ERROR_VIO_EXTENDED_SG

Remarks

VioDeRegister must be issued by the same process that issued the previous VioRegister. After VioDeRegister is issued, subsequent video calls are processed by the Base Video Subsystem.

C bindings

#define INCL_VIO
 
USHORT  rc = VioDeRegister(VOID);
 
USHORT           rc;            /* return code */

MASM bindings

EXTRN  VioDeRegister:FAR
INCL_VIO            EQU 1
 
CALL   VioDeRegister
 
Returns WORD