Intresting... Acording to the details from this years PDC, the HP multi touch facilities would only be available on machines running windows7!!!

The in the market ones now that are running XP won't allow multi touch due to the underlyins OS not actually supporting it fully.

Oluf... have you actually had code running that traps and uses these messages? If so i'd be intrested to see it.

Cheers

Shawty

Ahh, i see... i misunderstood the previous in that i thought it was app development in general.

*Scurry's off to play with visual studio and multi touch* :-)

Not sure that question has anything to do with the topic of this thread (which is multi-touch), but the short answer is no to the first two parts, and yes to the third part.

The TouchSmart screen does not work like a Wacom tablet. There is no sensitivity, only contact detection. And the contact detection is actually detection of an interruption of an infrared lightfield, so you don't even really have to touch the screen surface. All you need to do is get close enough for the infrared cameras in the upper corners to see a shadow in the lightfield.

Which actually means that you CAN use the Wacom pen, sort of, but all it will do is function as a stand-in for a finger. The special pressure sensitive part of the pen won't work.

Be advised that the NextWindow hardware may get confused if you run applications that use the libraries from NextWindow alongside with the HP TouchSmart software. You would be sending low-level hardware instructions from two higher-level software stacks at the same time, and there is no telling how the hardware might react to that. I'm not sure bad things will happen, but be advised of the potential issue and proceed with caution.

Regarding the OS-wide multi-touch: Vista doesn't have that capability and never was advertised as having it, so how anyone can have that expectation I'm not sure.

Personally, I'm not planning on doing desktop apps, I have my hands full working on the HP TouchSmart software itself (check my profile).

But thanks for trying all this out and telling everyone here about it!

My caution still applies. You'll have two parallel stacks of higher level software talking to the same hardware, and we don't know if that will cause issues down the line. If your experiments have found that there are no problems, great! Hope that stays the case.

When attempting to run the NextWindow C# sample on an HP TouchSmart IQ500, I get the following error:

((System.BadImageFormatException)e).StackTrace at MultiTouchCSharpSample.Form1.SetConnectEventHandler(NWConnectEventDelegate connectHandler)
at MultiTouchCSharpSample.Form1..ctor() in C:\Users\Sandbox\Desktop\HP-touchsmart\NWMultiTouchCSharpSample_v12\MultiTouchCSharpSample\Form1.cs:line 176
at MultiTouchCSharpSample.Program.Main() in C:\Users\Sandbox\Desktop\HP-touchsmart\NWMultiTouchCSharpSample_v12\MultiTouchCSharpSample\Program.cs:line 19

///////////////////////////////

Any thoughts as to what might be happening?

Thanks. Setting it to x86 was the trick. The platform settings are hidden by default in VS. You have to access throught he Tools/Options menu and set the Show check boxes to get access. Works like a charm now.

did any one know how to enable the multitouch in Touchsmart Pavilion TX2000 ruuning in Vista??

when i used the Next window drivers, it says 0 touch device connected but TX2000 is multitouch enabled. so kindly help me in solving the issue

Lets Touch,

Kannan

The touchsmart code i posted the link to on this site are specificaly for the IQ series touchsmart's, that is the one piece units where everything is built into the screen, and where the screen overlay is manufactured by NextWindow.

Multi touch in general is NOT available at operating system level on any system that pre-dates WIndows7, so this includes Vista.

Unless you can

A) Identify the manufacturer of the screen overlay on your particular model

and

B) Find a similar API style download from said manufacturer

then it's basically a case of no go.

If you update to windows 7 however, then you can probably use the operating system wide multi touch stuff.

As for this having to be Win32 only rather than a .NET program, then I'd say have fun trying to find this, beacuse it's getting harder and harder these days to find base Win32 level libraries for anything that's defined in the OS.

If you're talking about the Development Guidelines posted here on the site, they only apply to the IQ500/800 series desktop machines. Not to the tx2 or the tx2000. I don't know if there are any plans to publish Development Guidelines from HP for developing on the tx2000 or tx2. My guess is no at this point, but I don't work in the notebook group. So I don't know for sure.

You'll need to rely on information from NTrig for the tx2 and someone else for the tx2000 (not sure who). Once Windows 7 is officially released things may get easier, but possbily not for hardware that was produced before Win 7.