豆腐生活

在我的blog上更新了几个link

看到Simple stack code这样的一篇文章,看到后真的是兴奋的难以自已。这是我目前从Whidbey 上看到的最另人激动的改进了。

在C++下编译的DLL可以在framework下直接#using了，不需要再使用Managed C++首先编译成framework版本的....

虽然不知道这个是怎么实现的，但是这个功能真的是有用呀。

还有一篇文章非常重要，

Is there any way to find out if a given DLL is managed or unmanaged without trying to load it?

// mcppfaq_isManaged.cpp
// compile with: /clr
// arguments: mcppfaq_delnative.dll
#using <mscorlib.dll>
using namespace System;
using namespace System::IO;
static bool isManaged(String __gc* sFilename)
{
   try
   {
      Byte Data __gc[] = new Byte __gc[4096];
      FileInfo __gc* file = new FileInfo(sFilename);
      Stream __gc* fin = file -> Open(FileMode::Open, FileAccess::Read);
      Int32 iRead = fin -> Read(Data, 0, 4096);
      fin -> Close();
      // Verify this is a executable/dll
      if ((Data[1] << 8 | Data[0]) != 0x5a4d)
         return false;
      // This will get the address for the WinNT header
      Int32 iWinNTHdr = Data[63]<<24 | Data[62]<<16 | Data[61] << 8 | Data[60];
      // Verify this is an NT address
      if ((Data[iWinNTHdr+3] << 24 | Data[iWinNTHdr+2] << 16 
                                   | Data[iWinNTHdr+1] << 8 
                                   | Data[iWinNTHdr]) != 0x00004550)
         return false;
      Int32 iLightningAddr = iWinNTHdr + 24 + 208;
      Int32 iSum=0;
      Int32 iTop = iLightningAddr + 8;
      for (int i = iLightningAddr; i < iTop; i++)
         iSum|=Data[i];
      if (iSum == 0)
         return false;
      else
         return true;
   }

   catch(Exception __gc* e)
   {
      throw ;
   }
}

int main(int argc, char * argv[])
{
   System::Console::WriteLine(isManaged(argv[1]));
}

打印 | 张贴于 2003-11-14 15:12:00 | Tag:暂无标签