VioShowBuf

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.