我的dll动态链接库学习笔记.htm

我在网上收集的一些有关vcDLL编程的文章。

  &nbsp;&nbsp;&nbsp;&nbsp;Windows</span><span style='mso-bidi-font-size:10.5pt;
  font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;
  mso-bidi-font-family:Tahoma'>将遵循下面的搜索顺序来定位</span><span lang=EN-US
  style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>DLL</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>：</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>&nbsp;<br>
  1</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>．包含</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>EXE</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>文件的目录，</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>&nbsp;<br>
  2</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>．进程的当前工作目录，</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>&nbsp;<br>
  3</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>．</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Windows</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>系统目录，</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>&nbsp;<br>
  4</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>．</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Windows</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>目录，</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>&nbsp;<br>
  5</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>．列在</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Path</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>环境变量中的一系列目录。</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  <br>
  </span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>二、</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>中的</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>dll</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>：</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  <br>
  a</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>、</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Non-MFC&nbsp;DLL:</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>指的是不用</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的类库结构，直接用</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>C</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>语言写的</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>DLL</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>，其输出的函数一般用的是标准</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>C</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>接口，并能被非</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>或</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>编写的应用程序所调用。</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  <br>
  b</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>、</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Regular&nbsp;DLL:</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>和下述的</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Extension&nbsp;Dlls</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>一样，是用</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>类库编写的。明显的特点是在源文件里有一个继承</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>CWinApp</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的类。其又可细分成静态连接到</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>和动态连接到</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>上的。</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  <br>
  </span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>静态连接到</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的动态连接库只被</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>VC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的专业般和企业版所支持。该类</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>DLL</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>应用程序里头的输出函数可以被任意</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Win32</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>程序使用，包括使用</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的应用程序。输入函数有如下形式：</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  extern&nbsp;&quot;C&quot;&nbsp;EXPORT&nbsp;YourExportedFunction(&nbsp;);<br>
  </span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>如果没有</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>extern&nbsp;</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>“</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>C</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>”修饰，输出函数仅仅能从</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>C++</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>代码中调用。</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  DLL</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>应用程序从</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>CWinApp</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>派生，但没有消息循环。</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  <br>
  </span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>动态链接到</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的规则</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>DLL</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>应用程序里头的输出函数可以被任意</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>Win32</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>程序使用，包括使用</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>的应用程序。但是，所有从</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>DLL</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>输出的函数应该以如下语句开始：</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  AFX_MANAGE_STATE(AfxGetStaticModuleState(&nbsp;))<br>
  </span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
  Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>此语句用来正确地切换</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>MFC</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>模块状态。</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'><br>
  <br>
  Regular&nbsp;DLL</span><span style='mso-bidi-font-size:10.5pt;font-family:
  宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;mso-bidi-font-family:
  Tahoma'>能够被所有支持</span><span lang=EN-US style='mso-bidi-font-size:10.5pt;
  font-family:Tahoma'>DLL</span><span style='mso-bidi-font-size:10.5pt;
  font-family:宋体;mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma;
  mso-bidi-font-family:Tahoma'>技术的语言所编写的应用程序所调用。在这种动态连接库中，它必须有一个从</span><span
  lang=EN-US style='mso-bidi-font-size:10.5pt;font-family:Tahoma'>CWinApp</span><span
  style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:Tahoma;
  mso-hansi-font-family:Tahoma;mso-bidi-font-family:Tahoma'>继承下来的类，</span><span