VioShowBuf: Difference between revisions
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==Return Code== | ==Return Code== | ||
;rc (APIRET) - returns:Return code descriptions are: | |||
Return code descriptions are: | * 0 NO_ERROR | ||
* 0 | * 355 ERROR_VIO_MODE | ||
* 355 | * 421 ERROR_VIO_INVALID_PARMS | ||
* 421 | * 430 ERROR_VIO_ILLEGAL_DURING_POPUP | ||
* 430 | * 436 ERROR_VIO_INVALID_HANDLE | ||
* 436 | |||
==Remarks== | ==Remarks== | ||
Latest revision as of 16:16, 6 July 2019
Updates the physical display buffer with the logical video buffer (LVB).
Syntax
VioShowBuf(OffSet, Length, VioHandle)
Parameters
- OffSet (ULONG) - input
- Offset into the LVB.
- Starting offset, within the LVB, where the update to the screen is to start.
- Length (ULONG) - input
- Length of the area to be updated to the screen.
- VioHandle (HVIO) - input
- VIO presentation-space handle.
- This must be 0, unless the caller is a Presentation Manager application; in this case, it must be the value returned by VioCreatePS.
Return Code
- rc (APIRET) - returns
- Return code descriptions are:
- 0 NO_ERROR
- 355 ERROR_VIO_MODE
- 421 ERROR_VIO_INVALID_PARMS
- 430 ERROR_VIO_ILLEGAL_DURING_POPUP
- 436 ERROR_VIO_INVALID_HANDLE
Remarks
VioShowBuf is ignored unless it is issued by a process that is currently executing in the foreground or in a window.