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VioWrtNAttr: Difference between revisions

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Created page with "==Description== Writes an attribute to the display a specified number of times. ==Syntax== <PRE> #define INCL_VIO #include <os2.h> PBYTE Attr; /* Attribute to be ..."
 
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; Row (ULONG) - input : Starting row position.  
; Row (ULONG) - input : Starting row position.  


; Column (ULONG) - input : Starting column position.  
; Column (ULONG) - input : Starting column position.  


; VioHandle (HVIO) - input : VIO presentation-space handle.
; 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.  
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==
==Return Code==

Revision as of 04:55, 10 June 2016

Description

Writes an attribute to the display a specified number of times.

Syntax

#define INCL_VIO
#include <os2.h>

PBYTE     Attr;       /*  Attribute to be written. */
ULONG     Times;      /*  Repeat count. */
ULONG     Row;        /*  Starting row position. */
ULONG     Column;     /*  Starting column position. */
HVIO      VioHandle;  /*  VIO presentation-space handle. */
APIRET    rc;         /*  Return code. */

rc = VioWrtNAttr(Attr, Times, Row, Column, VioHandle);

Parameters

Attr (PBYTE) - input
Attribute to be written.

Address of the attributes (1 or 3 bytes) to be written.

Times (ULONG) - input
Repeat count.

The number of times to write the attribute.

Row (ULONG) - input
Starting row position.
Column (ULONG) - input
Starting column position.
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

VioWrtNAttr returns one of the following values:

  • 0 NO_ERROR
  • 355 ERROR_VIO_MODE
  • 358 ERROR_VIO_ROW
  • 359 ERROR_VIO_COL
  • 421 ERROR_VIO_INVALID_PARMS
  • 436 ERROR_VIO_INVALID_HANDLE


Remarks

If a repeated write gets to the end of the line and is not complete, it continues at the beginning of the next line. If the write gets to the end of the screen, it terminates.

Example Code


Related Functions

  • [[OS2 API:CPI: