VioScrUnLock: Difference between revisions

Revision as of 10:23, 10 January 2017

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.

@@ Line 1: / Line 1: @@
-==Description==
 Releases ownership of (unlocks) the physical display buffer.
@@ Line 14: / Line 13: @@
 </PRE>
 ==Parameters==
-; VioHandle (HVIO) - input : VIO presentation-space handle.
+;VioHandle (HVIO) - input : VIO presentation-space handle.
-Reserved. Must be 0.
+:Reserved. Must be 0.
 ==Return Code==
+;rc (APIRET) - returns:VioScrlUnLock returns one of the following values:
- rc (APIRET) - returns
-VioScrlUnLock returns one of the following values:
 * 0    NO_ERROR
 * 367        ERROR_VIO_UNLOCK
@@ Line 28: / Line 23: @@
 * 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==
+[[Category:Vio]]
-<PRE>
-</PRE>
-==Related Functions==
-* [[OS2 API:CPI:
-[[Category:The OS/2 API Project]]