Passing Int Array from Unmanged to Managed code

Unmanaged VB6.0 Code to C#

Note that you have to pass array without index.

Dim lParms(9) As Long
objNetAsm.GetInfo lParms

Managed C# Code:

In managed C# the array is accessed by refrence.
public long GetInfo (ref Int32[] plParms)
{
// Note that long in VB is Int32 in C#
}

UnmanagedVB6.0 to C++:

// Note you have to pass 0th element
cppObj.GetInfo lParms(0)

Unmanaged C++
// Using array pointer
GetInfo (long * plParms)
{

}

Some more good info on "Default Marshaling for Arrays"
http://msdn2.microsoft.com/en-us/library/z6cfh6e6(VS.80).aspx