VioScrollRt

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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

#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

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

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