270 lines
4.2 KiB
HTML
270 lines
4.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>Frequently Asked Questions</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="C++ dlopen mini HOWTO"
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HREF="index.html"><LINK
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REL="PREVIOUS"
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TITLE="Source Code"
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HREF="source.html"><LINK
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REL="NEXT"
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TITLE="See Also"
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HREF="seealso.html"></HEAD
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><BODY
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CLASS="section"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>C++ dlopen mini HOWTO</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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>Prev</A
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><TD
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VALIGN="bottom"
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HREF="seealso.html"
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>Next</A
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></TD
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="section"
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><H1
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CLASS="section"
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><A
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NAME="faq"
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></A
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>5. Frequently Asked Questions</H1
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><DIV
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CLASS="qandaset"
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><DL
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><DT
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>5.1. <A
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HREF="faq.html#AEN253"
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>I'm using Windows and I can't find the
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<TT
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CLASS="filename"
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>dlfcn.h</TT
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> header file! What's the problem?</A
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></DT
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><DT
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>5.2. <A
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HREF="faq.html#AEN263"
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>Is there some kind of <TT
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CLASS="function"
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>dlopen</TT
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>-compatible
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wrapper for the Windows <TT
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CLASS="function"
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>LoadLibrary</TT
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>
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API?</A
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></DT
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></DL
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><DIV
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CLASS="qandaentry"
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><DIV
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CLASS="question"
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><P
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><A
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NAME="AEN253"
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></A
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><B
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>5.1. </B
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>I'm using Windows and I can't find the
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<TT
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CLASS="filename"
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>dlfcn.h</TT
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> header file! What's the problem?</P
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></DIV
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><DIV
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CLASS="answer"
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><P
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><B
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> </B
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>The problem is that Windows doesn't have the
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<TT
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CLASS="function"
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>dlopen</TT
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> API, and thus there is no
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<TT
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CLASS="filename"
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>dlfcn.h</TT
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> header. There is a similar API
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around the <TT
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CLASS="function"
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>LoadLibrary</TT
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> function, and
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most of what is written here applies to it, too. Please refer to the
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<A
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HREF="http://msdn.microsoft.com/"
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TARGET="_top"
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>Microsoft Developer Network
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Website</A
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> for more information.</P
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></DIV
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></DIV
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><DIV
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CLASS="qandaentry"
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><DIV
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CLASS="question"
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><P
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><A
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NAME="AEN263"
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></A
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><B
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>5.2. </B
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>Is there some kind of <TT
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CLASS="function"
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>dlopen</TT
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>-compatible
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wrapper for the Windows <TT
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CLASS="function"
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>LoadLibrary</TT
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>
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API?</P
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></DIV
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><DIV
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CLASS="answer"
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><P
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><B
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> </B
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>I don't know of any, and I don't think there'll ever be one
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supporting all of <TT
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CLASS="function"
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>dlopen</TT
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>'s options.</P
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><P
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>There are alternatives though: libtltdl (a part of libtool),
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which wraps a variety of different dynamic loading APIs, among
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others <TT
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CLASS="function"
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>dlopen</TT
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> and
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<TT
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CLASS="function"
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>LoadLibrary</TT
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>. Another one is the <A
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HREF="http://developer.gnome.org/doc/API/glib/glib-dynamic-loading-of-modules.html"
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TARGET="_top"
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>Dynamic
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Module Loading functionality of GLib</A
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>. You can use one
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of these to ensure better possible cross-platform compatibility.
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I've never used any of them, so I can't tell you how stable they
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are and whether they really work.</P
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><P
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>You should also read section 4, <SPAN
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CLASS="QUOTE"
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>"Dynamically
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Loaded (DL) Libraries"</SPAN
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>, of the <A
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HREF="http://www.dwheeler.com/program-library"
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TARGET="_top"
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>Program Library
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HOWTO</A
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> for more techniques to load libraries and
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create classes independently of your platform.</P
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></DIV
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></DIV
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="source.html"
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ACCESSKEY="P"
|
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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HREF="seealso.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Source Code</TD
|
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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> </TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>See Also</TD
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></TR
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></TABLE
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></BODY
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> |