Table of Contents
Note: This API call is for DOS personality only. Use Family API for portability.
Int 21H, AH=0BH
Version
1 and higher
Brief
GET STDIN STATUS
Family API
Input
AH = 0Bh
Return
AL = status 00h if no character available FFh if character is available
Notes
^C/^Break are checked, and INT 23 is called if either pressed
standard input is always the keyboard under DOS 1.x, but may be redirected under DOS 2+
if the interim console flag is set (see AX=6301h), this function returns AL=FFh if a partially-formed double-byte character is available
See also
AH=06h“INPUT”,AX=4406h
Note
Text based on Ralf Brown Interrupt List Release 61