I/O CONTROL: KEYBOARD READ (USING SCANSHIFT)

This example will run an endless loop (DO...LOOP) where the keyboard will be scanned for pressing of any shift key. If this happens, the scan shift value will be printed out.

source compile sandbox issues? back to examples

SOURCE CODE ()

    CLS

    DO
        s = SCANSHIFT
        IF s <> 0 THEN
            PRINT s
        ENDIF
    LOOP

How to compile and run the example

The instructions here refer to compiling the example from the command line. For Microsoft Windows users we suggest using UGBASIC-IDE, which allows you to download and compile each single example with just one click.

Are instructions for your specific home computer / console missing? First of all, check if your computer is supported by clicking here. If so, since ugBASIC is a language which does not provide abstractions, it is possible that this example will not work on your target. If you think this is an issue, please click here.

Commodore 128 (CPU 8502)

In order to compile the example, type this command on the command line:

Linux

ugbc.c128 -O prg -o controls_keyboard_04.prg controls_keyboard_04.bas

Windows

ugbc.c128.exe -O prg -o controls_keyboard_04.prg controls_keyboard_04.bas

For Microsoft Windows users we suggest using UGBASIC-IDE, which allows you to download and compile this example with just one click.

Any problem?

If you have found a problem trying to run this example, if you think there is a bug or, more simply, you would like it to be improved, open an issue for this example on GitHub.
Thank you!

open an issue BACK TO EXAMPLES