Databases
StackOverflow2013
Postsdbo
PONative C++ to Managed C++ to C#
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PONative C++ to Managed C++ to C#
    text
    copied!<p>I am working on porting a large number of .h and .lib files from native C++ to Managed C++ for eventual use as a referenced .dll in C#.</p> <p>Please, I know it'd be a lot easier to port the whole thing to .NET, but if I could I would. It's 3rd party and all I have are .lib(no exports) and .h files to work with.</p> <p>Everything has been going smoothly until I hit virtual functions and now I'm having some delegate issues. </p> <p>Among the errors I'm getting are:</p> <blockquote> <p>error C3756: 'ThreadFunc': delegate definition conflicts with an existing symbol<br> error C2079: 'MyWrapTest::MyThreadWrap::m_threadAttr' uses undefined class 'MyWrapTest::MyThreadAttrWrap' error C2664: 'MyWrapTest::AutoPtr::AutoPtr(T *)' : cannot convert parameter 1 from 'MyWrapTest::MyThreadAttrWrap' to 'MyThread *'</p> </blockquote> <p>For clarity, I'll include the native code and the stuff I'm working on now. First, native code:</p> <pre><code>#ifndef MYTHREAD_HPP #define MYTHREAD_HPP #ifdef WIN32 #include &lt;winsock2.h&gt; #include &lt;windows.h&gt; #define STDCALL unsigned __stdcall typedef unsigned (__stdcall *ThreadFunc)(void*); #else #define STDCALL void* typedef void* (*ThreadFunc)(void*); typedef unsigned int HANDLE ; #endif #include "generaltypes.hpp" class MyThreadAttr; class MyThread { public: MyThread(void); MyThread(MyThreadAttr * tta); virtual ~MyThread() {}; virtual HANDLE start(ThreadFunc,void *, unsigned *); virtual int stop(); static void wait(HANDLE); #ifdef WIN32 static void wait(HANDLE, int);// msec timeout required since 'cancelThread' is no-op #endif static void sleep(unsigned int); static int32 cancelThread(HANDLE hThread); // no-op on Windows (returns -1)! #ifndef WIN32 static void setCancelStates(void); static void endProcess(); #endif protected: MyThreadAttr * m_threadAttr; void setThreadAttr(MyThreadAttr * tta); }; #endif </code></pre> <p>AND THE NEW STUFF I'M DEVELOPING:</p> <pre><code>#pragma once #ifdef WIN32 #include &lt;winsock2.h&gt; #include &lt;windows.h&gt; #define STDCALL unsigned __stdcall //typedef unsigned (__stdcall ThreadFunc)(Object^); #else #define STDCALL Object^ typedef unsigned int HANDLE; #endif #include "gentypes.hpp" #include "AutoPtr.h" #include "MyThread.hpp" using namespace System; using namespace System::Runtime::InteropServices; namespace MyWrapTest { public delegate Object^ ThreadFunc(Object^ o); ref class MyThreadAttrWrap; //#include "MyThreadAttrWrap.h" public ref class MyThreadWrap { public: MyThreadWrap(void) { AutoPtr&lt;MyThread&gt; m_NativeMyThread(new MyThread); }; MyThreadWrap(MyThreadAttrWrap tta) { AutoPtr&lt;MyThread&gt; m_NativeMyThread(tta); }; /*virtual ~MyThreadWrap(){}; virtual HANDLE start(ThreadFunc,System::Object^, unsigned ^); virtual int stop();*/ static void wait(HANDLE h) { m_NativeMyThread-&gt;wait(h); }; #ifdef WIN32 static void wait(HANDLE h, int i) // msec timeout required since 'cancelThread' is no-op { m_NativeMyThread-&gt;wait(h, i); }; #endif static void sleep(unsigned int i) { m_NativeMyThread-&gt;sleep(i); }; static int32 cancelThread(HANDLE hThread); // no-op on Windows (returns -1)! #ifndef WIN32 static void setCancelStates(void); static void endProcess(); #endif protected: MyThreadAttrWrap m_threadAttr; void setThreadAttr(MyThreadAttrWrap tta); private: AutoPtr&lt;MyThread&gt; m_NativeMyThread; }; } </code></pre>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload