public static void InitialMTBDATA(ref MTB_DATA list)
{
list.count = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int)));
Marshal.StructureToPtr(-1, list.count, false);
Console.WriteLine("MTBServer : count is set to: {0} ", (int)Marshal.PtrToStructure(new IntPtr(list.count.ToInt32()), typeof(int)));
list.buff = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(char)) * 1024);
}
public static void InitializeMtbData(ref MTB_DATA list)
{
int charNumber = 100;
list.count = Marshal.AllocCoTaskMem(IntSize);
Marshal.StructureToPtr(charNumber, list.count, false);
list.buff = Marshal.AllocCoTaskMem(CharSize * charNumber);
}
public static byte[] MTBDataToArray(MTB_DATA list)
{
int size = Marshal.SizeOf(typeof(char));
int count = (int)Marshal.PtrToStructure(new IntPtr(list.count.ToInt64()), typeof(int));
if (count == -1)
{
return(null);
}
byte[] byteArray = new byte[count];
for (int i = 0; i < count; i++)
{
byteArray[i] = (byte)Marshal.PtrToStructure(new IntPtr(list.buff.ToInt64() + i * size), typeof(byte));
}
Marshal.FreeCoTaskMem(list.buff);
return(byteArray);
}
public static bool GetUSBDevicePropertiesByPInvoke(int Number, out short pPoductId, out string pName, out string pSerialNumber)
{
ShortStruct poductId = new ShortStruct();
InitializeShortData(ref poductId);
MTB_DATA name = new MTB_DATA();
InitializeMtbData(ref name);
MTB_DATA serialNumber = new MTB_DATA();
InitializeMtbData(ref serialNumber);
bool result = GetUSBDeviceProperties(Number, poductId, name, serialNumber);
pPoductId = MTBDataToArray(poductId);
byte[] pPoductIdByte = MTBDataToArray(name);
pName = ByteArrayToStringConverter1(pPoductIdByte);
byte[] pSerialNumberByte = MTBDataToArray(serialNumber);
pSerialNumber = ByteArrayToStringConverter1(pSerialNumberByte);
return(result);
}
public static extern bool GetUSBDeviceProperties(int Number, ShortStruct pPoductId, MTB_DATA pName, MTB_DATA pSerialNumber);