Negative Inkey and the Mouse Wheel

[KenDown]

Turning the mouse wheel generates ascii codes 140 and 141 depending on which way you turn it. I'm wondering if there are negative inkey values for the mouse wheel?

Thanks.

[guest]

I'm wondering if there are negative inkey values for the mouse wheel?

What meaning would that have? INKEY with a positive (or zero) parameter returns information about events (keypresses and mouse wheel rotations) whereas INKEY with a negative parameter returns information about states (e.g. whether a key is currently pressed or not). Events and states are fundamentally different concepts: events are dynamic, they indicate that something happened at a certain point in time, whereas states are static, they just tell you how something is now. What states are associated with the mouse wheel? I can't think of any.

Of course on many two-button mice the mouse wheel (when pressed rather than rotated) behaves like the centre button of a three-button mouse. In that case there certainly is an associated negative INKEY value: −11. But that's unconnected with it being a wheel!

[KenDown]

Ok, thanks. That may clarify - though surely as you turn the wheel there is a moment when it is in the state of being turned (or is that too philosophical?)

[p_m21987]

though surely as you turn the wheel there is a moment when it is in the state of being turned (or is that too philosophical?)

That moment lasts such a short amount of time that you would probably never be able to detect it.