AutoHotkey Community

[V@no]

Hello!
I'm trying figure out a way to detect which side of a rectangular box cursor crossed and at which coordinate.
The problem I have is that cursor doesn't move one pixel at a time, depends on the mouse speed it jumping, so, by the time it "entered" the box I get coordinates on opposite side of the box it entered from...
The way I could think to solve this is to draw imaginary line from last coordinate before it crossed a box's side to the coordinate within the box.
Now here comes the hard part that I need help with: how to do that line? or perhaps there is another or even simpler way to get that coordinate?

Thank you!

[tic]