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| en:docs:fapi:vioscrunlock [2021/08/20 08:23] – prokushev | en:docs:fapi:vioscrunlock [2021/09/19 04:04] (current) – prokushev | ||
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| {{page> | {{page> | ||
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| + | ====== VioScrUnLock ====== | ||
| This call releases ownership of (unlocks) the physical display buffer. | This call releases ownership of (unlocks) the physical display buffer. | ||
| - | ==Syntax== | + | ===== Syntax |
| - | | + | <code c> |
| + | VioScrUnLock (VioHandle) | ||
| + | </ | ||
| + | ===== Parameters ===== | ||
| - | ==Parameters== | + | * VioHandle ([[HVIO]]) - input : Reserved word of 0s. |
| - | ;VioHandle (HVIO) - input : Reserved word of 0s. | + | |
| + | ===== Return Code ===== | ||
| + | |||
| + | rc ([[USHORT]]) - return | ||
| - | ==Return Code== | ||
| - | rc (USHORT) - return | ||
| Return code descriptions are: | Return code descriptions are: | ||
| - | * 0 NO_ERROR | ||
| - | * 367 ERROR_VIO_UNLOCK | ||
| - | * 430 ERROR_VIO_ILLEGAL_DURING_POPUP | ||
| - | * 436 ERROR_VIO_INVALID_HANDLE | ||
| - | * 465 ERROR_VIO_DETACHED | ||
| - | * 494 ERROR_VIO_EXTENDED_SG | ||
| - | ==Remarks== | + | * 0 NO_ERROR |
| + | * 367 ERROR_VIO_UNLOCK | ||
| + | * 430 ERROR_VIO_ILLEGAL_DURING_POPUP | ||
| + | * 436 ERROR_VIO_INVALID_HANDLE | ||
| + | * 465 ERROR_VIO_DETACHED | ||
| + | * 494 ERROR_VIO_EXTENDED_SG | ||
| + | |||
| + | ===== Remarks ===== | ||
| This call releases the screen lock that is set by VioScrLock. The VioScrUnLock call must be issued by a thread in the same process as the thread that issued VioScrLock. | This call releases the screen lock that is set by VioScrLock. The VioScrUnLock call must be issued by a thread in the same process as the thread that issued VioScrLock. | ||
| - | ===Family API Considerations=== | + | ==== Family API Considerations ==== |
| Some options operate differently in the DOS mode than in the OS/2 mode. Therefore, the following restriction applies to VioScrUnLock when coding in the DOS mode: | Some options operate differently in the DOS mode than in the OS/2 mode. Therefore, the following restriction applies to VioScrUnLock when coding in the DOS mode: | ||
| The status always indicates the unlock is successful (return code = 0). | The status always indicates the unlock is successful (return code = 0). | ||
| - | ==Example Code== | + | ===== Bindings ===== |
| - | === C Binding=== | + | |
| - | <PRE> | + | ==== C Binding==== |
| + | <code c> | ||
| #define INCL_VIO | #define INCL_VIO | ||
| Line 37: | Line 47: | ||
| USHORT | USHORT | ||
| - | </PRE> | + | </code> |
| - | ===MASM Binding=== | + | ====MASM Binding==== |
| - | <PRE> | + | <code asm> |
| EXTRN VioScrUnLock: | EXTRN VioScrUnLock: | ||
| INCL_VIO | INCL_VIO | ||
| Line 48: | Line 58: | ||
| Returns WORD | Returns WORD | ||
| - | </PRE> | + | </code> |
| - | + | ||
| - | ====== Note ====== | + | ===== Note ===== |
| Text based on [[http:// | Text based on [[http:// | ||