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VioScrUnLock

From EDM2
Revision as of 10:22, 10 January 2017 by Ak120 (talk | contribs) (Ak120 moved page OS2 API:CPI:VioScrUnLock to VioScrUnLock)

Description

Releases ownership of (unlocks) the physical display buffer.

Syntax

#define INCL_VIO
#include <os2.h>

HVIO      VioHandle;  /*  VIO presentation-space handle. */
APIRET    rc;         /*  Return code. */

rc = VioScrUnLock(VioHandle);

Parameters

VioHandle (HVIO) - input
VIO presentation-space handle.

Reserved. Must be 0.

Return Code

rc (APIRET) - returns

VioScrlUnLock returns one of the following values:

  • 0 NO_ERROR
  • 367 ERROR_VIO_UNLOCK
  • 421 ERROR_VIO_INVALID_PARMS
  • 430 ERROR_VIO_ILLEGAL_DURING_POPUP
  • 436 ERROR_VIO_INVALID_HANDLE

Remarks

This call releases the screen lock that is set by VioScrLock. The VioScrUnLock call must be issued by the same thread that issued VioScrLock.

Example Code

Related Functions

  • [[OS2 API:CPI:
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