C# Signature:

[DllImport("rapi.dll")]
public static extern int CeRapiInitEx(ref RAPIINIT pRapiInit);

User-Defined Types:

[StructLayout(LayoutKind.Explicit)]
public struct RAPIINIT
{
    [FieldOffset(0)] public int cbsize;
    [FieldOffset(4)] public System.IntPtr heRapiInit;
    [FieldOffset(8)] public System.IntPtr hrRapiInit;
};

Notes:

function info on msdn at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceactsy/html/cerefCeRapiInitEx.asp

Tips & Tricks:

Please add some!

Sample Code:

RAPIINIT r = new RAPIINIT();
r.cbsize = Marshal.SizeOf(r);
long ret = CeRapiInitEx(ref r);

Alternative Managed API: