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Calling C++ function out of VB.NET

Hi,

I'm trying to call a C++ function in a seperate DLL out of my VB.NET code
like this:

///////////////////////////////////////////////////////////////////////////////////////////////
//VB.NET:

Public Declare Function TestFunc Lib "test.dll" () As MYSTRUCT

<StructLayout(LayoutKind.Sequential)> Public Structure MYSTRUCT
Public a As Int64
Public b As Int64
End Structure

[...]'Here I call the function itself
myteststruct = TestFunc()

////////////////////////////////////////////////////////////////////////////////////////////////
//C++ (test.dll)

typedef struct MYSTRUCT {
__int64 a;
__int64 b;
}MYSTRUCT;
MYSTRUCT TestFunc()
{
MYSTRUCT mystruct;
//change a,b to any values
return mystruct;
}

Is the marshalling (and everything else) correct? Will the data transfered
correctly?

Thanks a lot
Peter
Jul 21 '05 #1
0 1074

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