-- pre decrement no works well Topic is solved

[Archimede]

example:
MouseClickDrag, LEFT, xMouse, yMouse, --xMouse, yMouse, 0

I solved the problem in this mode:
MouseClickDrag, LEFT, xMouse, yMouse, xMouse - 1, yMouse, 0
xMouse -= 1

but I think the first mode must works.

[neogna2]

Works for me. What is it that does not work for you?

Code: Select all

xMouse := 100
yMouse := 100
MouseClickDrag, LEFT, xMouse, yMouse, --xMouse, yMouse, 0
MouseGetPos, xPos
MsgBox % xPos " " xMouse ; 99 99

[safetycar]

I solved the problem in this mode:
MouseClickDrag, LEFT, xMouse, yMouse, xMouse - 1, yMouse, 0
xMouse -= 1

I don't know exactly the application, but after checking a bit through paint a code that would do the same is:

Code: Select all

MouseClickDrag, LEFT, xMouse+0, yMouse, --xMouse, yMouse, 0

[lexikos]

This is by design.

In one parameter the variable xMouse is passed by reference to the command, and in the other parameter it is decremented before the command executes and reads the variable's value. An expression such as x + --x would demonstrate similar behaviour.