AutoHotkey Community

[afromonkey0]

I was looking at videos of multitouch displays and the cool intuitive things they can do, like zooming in by putting fingers close together and spreading them apart, etc. And i realised that on my laptop touch pad, if i tap it clicks, and with two fingers it right clicks, three fingers it middle clicks, so it must be able to receive multiple finger input.
If there was a way to access that, i could make multitouch functionality for laptops.

So here's where you guys come in. Does anyone good at DLL calls or whatever know how to get at that touchpad data through autohotkey?

Here are some vids that give you an idea of what it could be capable of
http://www.youtube.com/watch?v=TJF4sUs0dZ0
http://www.youtube.com/watch?v=1ftJhDBZqss

[tank]

Its not multi touch
Its reacting to the width of the tap
Try using the hlat of your index finger

_________________

We are troubled on every side‚ yet not distressed; we are perplexed‚
but not in despair; Persecuted‚ but not forsaken; cast down‚ but not destroyed;

[tank]

also that system uses a system of cameras to react to the user
_________________

We are troubled on every side‚ yet not distressed; we are perplexed‚
but not in despair; Persecuted‚ but not forsaken; cast down‚ but not destroyed;

[afromonkey0]

[afromonkey0]

ok the ascii art didn't work because it doesn't recognise multiple spaces for some reason.
The point is, with the end fingers the same width apart, it is different if there's one in the middle or not.

[automaticman]

If it can already distinguish among multiple states, e.g. among three states, it should be already enough, no matter if it is or is called multitouch or not. In the end only the differentiation of multiple states is important among which we can switch fastly using our fingers.

[AnttiV]

Unfortunately, it probably IS just detecting the width (or, more specifically, radius) of the "click". I'll draw an example in a little bit if I have time. but it basically "draws a circle" around the pressure points and detects the size of that.

At least few of the laptop manufactures use that kind of touchpads, since a customer in my last job always complained his laptop only scrolled and didn't click properly - turned out his fingers were big enough for the touchpad to always detect "two fingers" even though he only used one.

EDIT: Here's what I mean. The "count of fingers" is calculated from the radius of the green area.

I agree though, whatever means the touchpad uses to distinguish between those states, it should be enough to make a "multitouch" application based on moving from state to state.

For example, zoom in if you move from "two-finger" state to "one-finger" state.