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

VioScrollRt

This call scrolls the entire display buffer (or area specified within the display buffer) to the right.

Syntax

VioScrollRt (TopRow, LeftCol, BotRow, RightCol, Lines, Cell, VioHandle)

Parameters

TopRow (USHORT) - input : Top row to be scrolled.

LeftCol (USHORT) - input : Left column to be scrolled.

BotRow (USHORT) - input : Bottom row to be scrolled.

RightCol (USHORT) - input : Right column to be scrolled.

Lines (USHORT) - input : Number of columns to be inserted at the left of the screen area being scrolled. If 0 is specified, no lines are scrolled.

Cell (PBYTE) - input : Address of the character attribute(s) pair (2 or 4 bytes) used as a fill character on inserted columns.

VioHandle (HVIO) - input : This must be zero unless the caller is a Presentation Manager application, in which case it must be the value returned by VioGetPs.

Return Code

rc (USHORT) - return

Return code descriptions are:

0 NO_ERROR

355 ERROR_VIO_MODE

358 ERROR_VIO_ROW

359 ERROR_VIO_COL

436 ERROR_VIO_INVALID_HANDLE

465 ERROR_VIO_DETACHED

Remarks

TopRow = 0 and LeftCol = 0 identifies the top left corner of the screen.

If a value greater than the maximum value is specified for TopRow, LeftCol, BotRow, RightCol, or Lines, the maximum value for that parameter is used.

If TopRow and LeftCol = 0 and if BotRow, RightCol, and Lines = 65535 (or -1 in assembler language), the entire screen is filled with the character-attribute pair defined by Cell.

Bindings

C Binding

#define INCL_VIO USHORT rc = VioScrollRt(TopRow, LeftCol, BotRow, RightCol, Lines, Cell, VioHandle); USHORT TopRow; /* Top row */ USHORT LeftCol; /* Left column */ USHORT BotRow; /* Bottom row */ USHORT RightCol; /* Right column */ USHORT Lines; /* Number of lines */ PBYTE Cell; /* Cell to be written */ HVIO VioHandle; /* Video handle */ USHORT rc; /* return code */

MASM Binding

EXTRN VioScrollRt:FAR INCL_VIO EQU 1 PUSH WORD TopRow ;Top row PUSH WORD LeftCol ;Left column PUSH WORD BotRow ;Bottom row PUSH WORD RightCol ;Right column PUSH WORD Lines ;Number of lines PUSH@ OTHER Cell ;Cell to be written PUSH WORD VioHandle ;Video handle CALL VioScrollRt Returns WORD

Note

Text based on http://www.edm2.com/index.php/VioScrollRt

Family API
DOS	Process Manager	DosBeep DosExit DosSleep DosExecPgm
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Memory Manager	DosFreeSeg DosSubAlloc DosSubFree DosSubSet DosAllocHuge DosAllocSeg DosReallocHuge DosReallocSeg DosGetHugeShift DosCreateCSAlias
NLS	DosCaseMap DosGetCtryInfo DosGetDBCSEv DosSetCtryCode DosGetCollate DosGetMessage DosInsMessage DosPutMessage
Date and Time	DosSetDateTime DosGetDateTime
Devices	DosDevConfig DosDevIOCtl DosDevIOCtl2
Signals	DosHoldSignal DosSetSigHandler
Misc	BadDynLink DosGetEnv DosGetMachineMode DosGetVersion DosError DosErrClass DosSetVec
KBD	KbdCharIn KbdFlushBuffer KbdGetStatus KbdSetStatus KbdStringIn KbdPeek
VIO	VioGetBuf VioGetConfig VioGetCurPos VioGetCurType VioGetPhysBuf VioReadCellStr VioReadCharStr VioScrollUp VioScrollDn VioScrollLf VioScrollRt VioScrUnLock VioSetCurPos VioSetCurType VioSetMode VioGetMode VioShowBuf VioWrtCellStr VioWrtCharStr VioWrtCharStrAtt VioWrtNAttr VioWrtNCell VioWrtNChar VioWrtTTY VioScrLock VioPopUp
Tools	BIND
Modules	DOSCALLS.DLL VIOCALLS.DLL KBDCALLS.DLL MSG.DLL
Libraries	API.LIB OS2386.LIB FAPI.LIB DOSCALLS.LIB SUBCALLS.LIB