public static void WriteValue(this IntPtr baseAddr, ref int offset, ItemType type, object value)
{
switch (type)
{
case ItemType.Int8:
case ItemType.UInt8:
Marshal.WriteByte(baseAddr, offset, Convert.ToByte(value, CultureInfo.InvariantCulture)); // (byte)value);
break;
case ItemType.Bool:
case ItemType.Int16:
case ItemType.UInt16:
Marshal.WriteInt16(baseAddr, offset, Convert.ToInt16(value, CultureInfo.InvariantCulture)); //(short)value);
break;
case ItemType.UInt32:
case ItemType.Int32:
Marshal.WriteInt32(baseAddr, offset, Convert.ToInt32(value, CultureInfo.InvariantCulture)); //(int)value);
break;
case ItemType.Fix32:
TW_FIX32 f32 = (TW_FIX32)value;
WriteFix32(baseAddr, ref offset, f32);
return; // no need to update offset for this
case ItemType.Frame:
TW_FRAME frame = (TW_FRAME)value;
WriteFix32(baseAddr, ref offset, frame._left);
WriteFix32(baseAddr, ref offset, frame._top);
WriteFix32(baseAddr, ref offset, frame._right);
WriteFix32(baseAddr, ref offset, frame._bottom);
return; // no need to update offset for this
//case ItemType.String1024:
// WriteString(baseAddr, offset, value as string, 1024);
// break;
case ItemType.String128:
WriteString(baseAddr, offset, (string)value, 128);
break;
case ItemType.String255:
WriteString(baseAddr, offset, (string)value, 255);
break;
case ItemType.String32:
WriteString(baseAddr, offset, (string)value, 32);
break;
case ItemType.String64:
WriteString(baseAddr, offset, (string)value, 64);
break;
//case ItemType.Unicode512:
// WriteUString(baseAddr, offset, value as string, 512);
// break;
}
offset += type.GetSize();
}
private static void WriteFix32(IntPtr baseAddr, ref int offset, TW_FIX32 f32)
{
Marshal.WriteInt16(baseAddr, offset, f32.Whole);
if (f32.Fraction > Int16.MaxValue)
{
Marshal.WriteInt16(baseAddr, offset + 2, (Int16)(f32.Fraction - 32768));
}
else
{
Marshal.WriteInt16(baseAddr, offset + 2, (Int16)f32.Fraction);
}
offset += _sizes[ItemType.Fix32];
}