_CONSOLEINPUT - mkilgore/QB64pe GitHub Wiki

The _CONSOLEINPUT function is used to monitor any new mouse or keyboard input coming from a $CONSOLE window. It must be called in order for _CINP to return valid values. Windows-only.

infoExists%% = _CONSOLEINPUT

• Returns 1 if new keyboard information is available, 2 if mouse information is available, otherwise it returns 0.
• Must be called before reading any of the other mouse functions and before reading _CINP.
• To clear all previous input data, read _CONSOLEINPUT in a loop until it returns 0.
• Not available in Linux or macOS.

Example 1: Reading individual key strokes from a console window (Windows).

PRINT "Press any key, and I'll give you the scan code for it.  <ESC> quits the demo."
PRINT
PRINT
DO
    x = _CONSOLEINPUT
    IF x = 1 THEN 'read only keyboard input ( = 1)
        c = _CINP
        PRINT c;
    END IF
LOOP UNTIL c = 1
END

• $CONSOLE, _CONSOLE
• _CINP, Scan Codes
• _MOUSEX, _MOUSEY, _MOUSEBUTTON, _MOUSEWHEEL