DLL interop / interesting error

Question

char ARRAY[1024]; // <-- global

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Code below works

myFunctionInDll("some string"); // everything ok

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Code below doesn't work

myFunctionInDll(ARRAY); // after compilation the entry point of DLL cannot be found

So, to sum up, if I pass a "static string" to my function inside my dll the dll compiles and loads perfectly. However, if I populate the global array (chars) and then try and pass that to my function, again it compiles but when I try and call the function from my C# app I get 'entry point cannot be found.' This is really strange and I can find no reason why...

Thanks RU.

Anyone know why?

Answer 1

Did you write the interop or are you just using the .NET generated interop class? If the later try

string myStr = "some string";
myFunctionInDll(myStr);

Hope that helps.