How to implement a C++ callback in C# -

i'm having real troubles trying use c++ callback in c# , appreciated.

the first thing code create event:

uevent = createevent(null, true, false, "eventname"); 

after that, i've got c++ function implements callback in c++:

int registercallback(tcallbacktype callbacktype, void *plltprofilecallback, void *puserdata) 

the callbacktype used specify stdcall. then, plltprofilecallback name of function call, , finally, user data.

with function, i'm able make callback function typing following:

registercallback(std_call, (void*)functionname, 0) 

where other function is:

void __stdcall functionname(const unsigned char* pucdata, unsigned int uisize, void* puserdata) 

and then, i've got code wait event:

waitforsingleobject(uevent, 1000) 

my problem comes when try in c#. first thing import registercallback function dll:

[dllimport(driver_dll_name, entrypoint = "s_registercallback",callingconvention = callingconvention.stdcall)]     internal static extern int registercallback(uint pllt, tcallbacktype callbacktype, intptr plltprofilecallback, intptr puserdata); 

but then, don't know how proceed. please me?

delegates in c# equivalent c++ callback.

please refer msdn introduction & syntax , usage same