VioReadCellStr (FAPI)

This call reads a string of character-attribute pairs (cells) from the screen, starting at the specified location.

Syntax
VioReadCellStr (CellStr, Length, Row, Column, VioHandle)

Parameters

 * CellStr (PCH) - output: Address of the buffer where the cell string is returned.
 * Length (PUSHORT) - input/output: Address of the buffer length in bytes. Length must take into account that each character-attribute(s) entry in the buffer is 2 or 4 bytes. If the length of the buffer is not sufficient, the last entry is not complete.
 * Row (USHORT) - input: Starting row of the field to read, 0 is the top row.
 * Column (USHORT) - input: Starting column of the field to read, 0 is the leftmost column.
 * 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
If a string read comes to the end of the line and is not complete, the string read continues at the beginning of the next line. If the read comes to the end of the screen and is not complete, the read terminates and the length is set to the length of the buffer that was filled.

PM Considerations
VioReadCellStr reads a string of character/attributes (or cells) from the Advanced VIO presentation space starting at the specified location.

C

 * 1) define INCL_VIO

USHORT rc = VioReadCellStr(CellStr, Length, Row, Column, VioHandle);

PCH    CellStr;       /* Cell string buffer */ PUSHORT Length;       /* Length of cell string buffer */ USHORT Row;           /* Starting row location */ USHORT Column;        /* Starting column location */ HVIO   VioHandle;     /* Video handle */

USHORT rc;            /* return code */ 

MASM
 EXTRN VioReadCellStr:FAR INCL_VIO           EQU 1

PUSH@ OTHER   CellStr       ;Cell string buffer PUSH@ WORD    Length        ;Length of cell string buffer PUSH  WORD    Row           ;Starting row location PUSH  WORD    Column        ;Starting column location PUSH  WORD    VioHandle     ;Video handle CALL  VioReadCellStr

Returns WORD 

Related Functions

 * VioWrtCellStr