[bst2]

It's 32 bit integer, HIWORD is x and LOWORD is y position of top left corner.

For ex.

position = 43254468  // 0x029402C4

x = 0x0294 -> 660
y = 0x02C4 -> 708

x = position >> 16;
y = position & 0xFFFF;

reverse:
position = (x << 16) | y;