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Article #8748Re: calling host executable functions/methods from a dll
From: Remy Lebeau (TeamB)
Date: Wed, 22 Sep 2004 17:54
Date: Wed, 22 Sep 2004 17:54
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<Roger Warren> wrote in message news:41516f76@newsgroups.borland.com... > hi, how can i call a host executables methods or functions from > a dll that is loaded dynamically (using LoadLibrary() and GetProcAddress())? Two ways: 1) have the host export the functions just like a DLL would, and then the DLL can use GetProcAddress() to get to them 2) have the host pass the desired function pointers to the DLL as parameters to a function that the DLL exports, and then the DLL can store them for use whenever it needs to call them. > if i have TForm1 *Form1 in the host executable, can i pass > a pointer to an instance of TForm1 to the dll? Yes, although I would not advise passing VCL objects over the DLL boundary unless you are making a package instead of a DLL. Gambit
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X-Google-Thread: 10cc67,61cd17292f50f8cb X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit From: "Remy Lebeau \(TeamB\)" <no.spam@no.spam.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <41516f76@newsgroups.borland.com> Subject: Re: calling host executable functions/methods from a dll Date: Wed, 22 Sep 2004 10:54:08 -0700 Lines: 26 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 NNTP-Posting-Host: 68.69.17.41 Message-ID: <4151bc0a$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1095875594 68.69.17.41 (22 Sep 2004 10:53:14 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail