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Article #346680Re: Jak przekazać NULL do funkcji biblioteki DLL
From: konsul41
Date: Mon, 23 Jul 2018 10:47
Date: Mon, 23 Jul 2018 10:47
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>
> No raczej, przecież "pucImage" to wskaźnik, czyli adres w pamięci i jak
> podasz 0, to podasz
> pusty ("ślepy") adres, czyli NULL.
Nie
The reserved word nil is a special pointer. When nil is assigned to a
pointer, the pointer does not reference anything.
Wskaźnik o wartości nil(null) wskazuje na nic.
Wskaźnik o adresie 0 wskazuje na coś.
nil(null)<>0
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!newsfeed.pionier.net.pl!goblin2!goblin1!goblin.stu.neva.ru!newsfeed.neostrada.pl!unt-exc-01.news.neostrada.pl!unt-spo-a-01.news.neostrada.pl!news.neostrada.pl.POSTED!not-for-mail Subject: Re: Jak przekazać NULL do funkcji biblioteki DLL Newsgroups: pl.comp.lang.delphi References: <a8f14f86-85d7-4e11-ac08-fa595894e6d0@googlegroups.com> <pj48bv$nui$1@node1.news.atman.pl> From: "konsul41@wp.pl" <konsul41@wp.pl> Date: Mon, 23 Jul 2018 12:47:21 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <pj48bv$nui$1@node1.news.atman.pl> Lines: 14 Message-ID: <5b55b239$0$605$65785112@news.neostrada.pl> Organization: Telekomunikacja Polska NNTP-Posting-Host: 185.35.199.36 X-Trace: 1532342841 unt-rea-b-01.news.neostrada.pl 605 185.35.199.36:24586 X-Complaints-To: abuse@news.neostrada.pl Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit