thinBasic: user defined types

Element offset

The members are stored in the memory in the order they are defined.

This is very important because it means that swapping lines of member definition will completely change the memory representation.

In order to find element byte offset, please use the dedicated UDT_ElementOffset function:

msgBox strFormat$("Offset of .x is: {1} bytes, .y {2} bytes",
                  UDT_ElementOffset(point.x),
                  UDT_ElementOffset(point.y))

You can also use relevant UDT_ElementByte in order to find at which byte given element starts.