问题描述
我有一个.Net DLL,我已经注册,并能够从我的C#代码调用方法。
我基本上遵循了本教程:
现在我需要在c#中异步地做一些事情,所以我需要一些告诉c ++代码的方法。
我已经创建了一个这样的方法:
public void Init (字符串服务器,IntPtr回调);
我可以在c ++中看到:
Init(BSTR server,long callback);
当我调用它时,我还需要将一个变量传递回c ++代码。 >
基本上,我有一个事件在C#代码中被触发,我需要c ++代码来处理它,包括事件args。
我很高兴自己做阅读,但我根本找不到任何东西。我看到一些关于Windows事件的事情...这里
但我们没有使用任何窗口标题,我不认为,我不想添加所有这些东西,如果有一个更简单的方法这样做。
谢谢您阅读!
好吧,比我想象的容易,但看起来像巫毒我...
基本上在c ++中添加
void CALLBACK CppCallbackc()
{
std :: cout<< 测试;
}
然后在c#add
public delegate void CppCallback();
,当您要启动它时,
Marshal.GetDelegateForFunctionPointer(cppCallback,typeof(CppCallback))。DynamicInvoke(null);
I have a .Net dll which I have registered and am able to call methods on from my C# code.I essentially followed this tutorial: http://support.microsoft.com/kb/828736
now I need to do something in c# asynchronously, so I need some way of telling the c++ code that I am done.
I have created a method like so:
public void Init(string server, IntPtr callback);
which I can see in the c++ as:
Init(BSTR server, long callback);
I also need to pass a variable back to the c++ code when I make invoke it.
basically, I have an event that's getting fired in the C# code and I need the c++ code to handle it, including the event args.
I am glad to do the reading myself, but I am not able to find anything at all. I did see some stuff about windows events... herehttp://msdn.microsoft.com/en-us/library/windows/desktop/aa385771(v=vs.85).aspx
but we aren't using any windows headers I don't think and I didn't want to add all this stuff if there is a simpler way of doing this.
Thank you for reading!
okay it's easier than I thought, but it seems like voodoo to me...
basically in the c++ add
void CALLBACK CppCallbackc()
{
std::cout << "test";
}
then in the c# add
public delegate void CppCallback();
and when you want to fire it,
Marshal.GetDelegateForFunctionPointer(cppCallback, typeof(CppCallback)).DynamicInvoke(null);
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