Returns characters from a specified console screen buffer location.
Parameters:
row
The row from which to start reading.
Console screen buffer rows are numbered from top to bottom starting
with 0.
col
The column from which to start reading.
Console screen buffer columns are numbered from left to right starting
with 0.
len
The number of characters to read.
The default is to read to the end of the console screen buffer.
Limitation
This function reads in only screen characters
and does not consider the color attributes of each character read. When
restoring a character string to the screen with SAY or the CHAROUT built-in
function, the previous color settings are lost.
Note
The Windows API used by function is not recommended any more.
Example 8.45. RexxUtil — SysTextScreenRead
-- read the entire console screen bufferscreen=SysTextScreenRead(0,0)-- read one screen buffer lineparsevalueSysTextScreenSize()withrowscolumnsline=SysTextScreenRead(2,0,columns)
