vc的一个问题

waxwings

谁能帮我看看下面这段话？我Visual Studio不太会用，这个COIN_DLL该在哪里定义？能用中文给我讲讲吗？多谢了！对了，我用的是Visual Studio Net 2003

Note that either COIN_DLL or COIN_NOT_DLL _must_ be defined by the
  application programmer on MSWindows platforms, or else the #error
  statement will hit. Set up one or the other of these two defines in
  your compiler environment according to how the library was built --
  as a DLL (use "COIN_DLL") or as a LIB (use "COIN_NOT_DLL").

  (Setting up defines for the compiler is typically done by either
  adding something like "/DCOIN_DLL" to the compiler's argument line
  (for command-line build processes), or by adding the define to the
  list of preprocessor symbols in your IDE GUI (in the MSVC IDE, this
  is done from the "Project"->"Settings" menu, choose the "C/C++" tab,
  then "Preprocessor" from the dropdown box and add the appropriate
  define)).

waxwings

对了，我找到那个preprocessor的地方，里面是一串WIN32;_DEBUG;_WINDOWS;_USRDLL;CONSTRUCT3D_EXPORTS;USE_TGS;SOUND
是不是我在后面加一个coin_dll就可以了啊？$汗$

cmh

咳....没头没尾的。大致：

COIN是一个组件，你既可以通过直接调用.DLL的形式使用它，也可以通过编译的时候链接.LIB来使用。

此外应用此组件的程序，编译的时候需要特殊的Proproccessor。这个组件貌似是其他软件系统的扩展接口。

具体要做的：
1. 要么在你的源程序里面Load那个DLL，要么在编译环境中设置调用相应的LIB
2. 在编译设置里，按照1楼下半段写的，"Project"->"Settings" -> "C/C++" -> "Preprocessor"，在最后加上;DCOIN_DLL