May 2011
Intermediate to advanced
800 pages
39h 19m
German
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R1.16 Umwandlung zwischen Byte-Array und String
Aufgabe
Für die Parameterübergabe von oder an API-Funktionen sind häufig Byte-Arrays erforderlich. Ein Byte-Array speichert in seinen Feldern die ASCII-Codes der einzelnen Zeichen einer Zeichenkette. Gesucht werden Funktionen zur Hin- und Rückumwandlung eines Strings in ein Byte-Array.
Lösung
Mit den Standardfunktionen Asc und Chr$, sowie einer Parameterübergabe des Byte-Arrays By Reference (ByRef) lässt sich die gestellte Aufgabe erfüllen.
Oberfläche
Ein ungebundenes Textfeld, ein Listenfeld (Herkunftstyp = Wertliste) und zwei Befehlsschaltflächen genügen um beide Funktionen zu testen. Das Textfeld dient zur Ein- bzw. Ausgabe einer Zeichenkette, das Listenfeld soll den Inhalt des Byte-Arrays anzeigen ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.