Neil Cowburn

In a comment on HOW-TO: Retrieve the ICC-ID using the SIM Manager APIs, Paul requested some help in translating the VB code to C#. Here it is in all its glory.

P/Invoke prototypes:

[DllImport("cellcore.dll")]
static extern int SimInitialize (
            uint dwFlags, 
            IntPtr lpfnCallback, 
            uint dwParam, 
            ref IntPtr lphSim);

[DllImport("cellcore.dll")]
static extern int SimDeinitialize (IntPtr hSim);

[DllImport("cellcore.dll")]
static extern int SimReadRecord (
            IntPtr hSim, 
            uint dwAddress, 
            uint dwRecordType,	
            uint dwIndex, 
            byte[] lpData, 
            uint dwBufferSize, 
            ref int dwSize);

Constants:

const int EF_ICCID = 0x2FE2;
const int SIM_RECORDTYPE_TRANSPARENT = 0x1;

Implementation:

IntPtr hSim;
byte[] iccid = new byte[10];
int zero = 0;

SimInitialize (0, IntPtr.Zero, 0, ref hSim);

SimReadRecord (hSim, 
            EF_ICCID, 
            SIM_RECORDTYPE_TRANSPARENT, 
            0, 
            iccid, 
            (uint)iccid.Length, 
            ref zero);

SimDeinitalize (hSim);