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====== VioScrollUp ======
 
This call scrolls the entire display buffer (or area specified within the display buffer) up.

===== Syntax =====
<code c>
VioScrollUp (TopRow, LeftCol, BotRow, RightCol, Lines, Cell, VioHandle)
</code>

===== 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 lines to be inserted at the bottom 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 lines.
  * 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====
<code c>
#define INCL_VIO

USHORT  rc = VioScrollUp(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;          /* Fill character */
HVIO    VioHandle;     /* Video handle */

USHORT  rc;            /* return code */
</code>

====MASM====
<code asm>
EXTRN  VioScrollUp: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          ;Fill character
PUSH   WORD    VioHandle     ;Video handle
CALL   VioScrollUp

Returns WORD
</code>

===== Related Functions =====

*[[VioScrollDn]] 


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