This is part of Family API which allow to create dual-os version of program runs under OS/2 and DOS
Note: This is legacy API call. It is recommended to use 32-bit equivalent
This call updates the physical display buffer with the logical video buffer (LVB).
VioShowBuf (Offset, Length, VioHandle)
rc (USHORT) - return
Return code descriptions are:
VioShowBuf is ignored unless it is issued by a process that has previously called VioGetBuf and that is currently executing in the foreground.
This function updates the display with the Advanced VIO presentation space.
#define INCL_VIO USHORT rc = VioShowBuf(Offset, Length, VioHandle); USHORT Offset; /* Offset into LVB */ USHORT Length; /* Length */ HVIO VioHandle; /* Video handle */ USHORT rc; /* return code */
EXTRN VioShowBuf:FAR INCL_VIO EQU 1 PUSH WORD Offset ;Offset into LVB PUSH WORD Length ;Length PUSH WORD VioHandle ;Video handle CALL VioShowBuf Returns WORD
Text based on http://www.edm2.com/index.php/VioShowBuf_(FAPI)