VioDeRegister

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

Syntax

VioDeRegister ()

Parameters

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.

Bindings

C

#define INCL_VIO

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

MASM

EXTRN  VioDeRegister:FAR
INCL_VIO            EQU 1

CALL   VioDeRegister

Returns WORD