private void GetValue()
{
int status = 0;
switch (_data_type)
{
case HDF4Helper.DataTypeDefinitions.DFNT_CHAR8: //string
//case HDF4Helper.DataTypeDefinitions.DFNT_CHAR:
case HDF4Helper.DataTypeDefinitions.DFNT_UCHAR8:
//case HDF4Helper.DataTypeDefinitions.DFNT_UCHAR:
{
IntPtr ptr = Marshal.AllocHGlobal(_count * 8);
status = HDF4Helper.SDreadattr(_sd_id, _attr_index, ptr);
var buffer = new byte[_count];
Marshal.Copy(ptr, buffer, 0, _count);
Marshal.FreeHGlobal(ptr);
_value = Encoding.ASCII.GetString(buffer); //new ASCIIEncoding()
}
break;
case HDF4Helper.DataTypeDefinitions.DFNT_INT8:
case HDF4Helper.DataTypeDefinitions.DFNT_UINT8:
{
IntPtr ptr = Marshal.AllocHGlobal(_count * 8);
status = HDF4Helper.SDreadattr(_sd_id, _attr_index, ptr);
var buffer = new byte[_count];
Marshal.Copy(ptr, buffer, 0, _count);
Marshal.FreeHGlobal(ptr);
_value = buffer;
}
break;
case HDF4Helper.DataTypeDefinitions.DFNT_INT16:
case HDF4Helper.DataTypeDefinitions.DFNT_UINT16:
{
IntPtr ptr = Marshal.AllocHGlobal(_count * 16);
status = HDF4Helper.SDreadattr(_sd_id, _attr_index, ptr);
var buffer = new short[_count];
Marshal.Copy(ptr, buffer, 0, _count);
Marshal.FreeHGlobal(ptr);
_value = buffer;
}
break;
case HDF4Helper.DataTypeDefinitions.DFNT_INT32:
case HDF4Helper.DataTypeDefinitions.DFNT_UINT32:
{
IntPtr ptr = Marshal.AllocHGlobal(_count * 32);
status = HDF4Helper.SDreadattr(_sd_id, _attr_index, ptr);
var buffer = new int[_count];
Marshal.Copy(ptr, buffer, 0, _count);
Marshal.FreeHGlobal(ptr);
_value = buffer;
}
break;
case HDF4Helper.DataTypeDefinitions.DFNT_FLOAT32:
{
IntPtr ptr = Marshal.AllocHGlobal(_count * 32);
status = HDF4Helper.SDreadattr(_sd_id, _attr_index, ptr);
var buffer = new float[_count];
Marshal.Copy(ptr, buffer, 0, _count);
Marshal.FreeHGlobal(ptr);
_value = buffer;
}
break;
case HDF4Helper.DataTypeDefinitions.DFNT_FLOAT64:
{
IntPtr ptr = Marshal.AllocHGlobal(_count * 64);
status = HDF4Helper.SDreadattr(_sd_id, _attr_index, ptr);
var buffer = new double[_count];
Marshal.Copy(ptr, buffer, 0, _count);
Marshal.FreeHGlobal(ptr);
_value = buffer;
}
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NINT8:
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NUINT8:
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NINT16:
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NUINT16:
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NINT32:
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NUINT32:
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NFLOAT32:
break;
case HDF4Helper.DataTypeDefinitions.DFNT_NFLOAT64:
break;
default:
break;
}
}
