I/O CONTROL: KEYBOARD READ (USING INKEY AND SCANCODE)

This example will run an endless loop (DO...LOOP) with an inner loop (WHILE...WEND) that waits for a key press. When the key is pressed, the code will check if the key has an ASCII code or not, and to print the fact. Moreover, for each key pressed, the scan code is printed back.

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SOURCE CODE ()

    CLS
    
    k = ""
    DO
        WHILE k == ""
            k = INKEY$
        WEND
        IF ASC(k)==0 THEN : PRINT "NO ASCII CODE" : ENDIF
        PRINT "THE SCAN CODE IS ";SCANCODE
        k = ""
    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.

Dragon 32

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

Linux

ugbc.d32 -O bin -o controls_keyboard_03.bin controls_keyboard_03.bas

Windows

ugbc.d32.exe -O bin -o controls_keyboard_03.bin controls_keyboard_03.bas

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

Dragon 64

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

Linux

ugbc.d64 -O bin -o controls_keyboard_03.bin controls_keyboard_03.bas

Windows

ugbc.d64.exe -O bin -o controls_keyboard_03.bin controls_keyboard_03.bas

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

SEGA SC-3000

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

Linux

ugbc.sc3000 -O rom -o controls_keyboard_03.rom controls_keyboard_03.bas

Windows

ugbc.sc3000.exe -O rom -o controls_keyboard_03.rom controls_keyboard_03.bas

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

TRS-80 Color Computer, TRS-80 Color Computer 2

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

Linux

ugbc.coco -O bin -o controls_keyboard_03.bin controls_keyboard_03.bas

Windows

ugbc.coco.exe -O bin -o controls_keyboard_03.bin controls_keyboard_03.bas

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

TRS-80 Color Computer 3

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

Linux

ugbc.coco3 -O bin -o controls_keyboard_03.bin controls_keyboard_03.bas

Windows

ugbc.coco3.exe -O bin -o controls_keyboard_03.bin controls_keyboard_03.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!

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