1. ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
  2. ZBI Commands
  3. INBYTE
  • ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
INBYTE

INBYTE

This command forces the interpreter to pause until data is available. Use the
DATAREADY
 function to determine if there is data on the port.
Format
INBYTE [<CHANNEL>:] <A>
INBYTE [<CHANNEL>:] <A$>
<A>
 = integer value is set to the byte received.
Parameters
<CHANNEL>
 = reads from this port. Default = 0.
<A$>
 = A single byte string is created with the byte received.The first character is used. In the case of a NULL string, 0 is sent.
Example
This is an example of how to use the INBYTE to create an echo program:
10 INBYTE A$ !Takes one byte (char) from port #0 
20 PRINT A$ !Prints the character to the console 
30 GOTO 10
In this example, the interpreter pauses until the data is entered, then continues processing. This command enters all bytes in a string or integer, including control codes.
Comments
INBYTE
 will block until a byte is received on the specified port. This can be an interactive command that takes effect as soon as it is received by the printer, or a program command that is preceded by a line number.