I develop tablet application but have problem with normalPressure. I can get
only X,Y and error when I try to get NormalPressure. I use the follow code:
The array guidMy return only 2 elements X,Y guid.

foreach (Stroke theStroke in theStrokes)
{
Guid[] guidMy = theStroke.PacketDescription;

int[] theX =
theStroke.GetPacketValuesByProperty(PacketProperty .X);

int[] theY =
theStroke.GetPacketValuesByProperty(PacketProperty .Y);

int[] thePressure =

theStroke.GetPacketValuesByProperty(PacketProperty .NormalPressure);
}

When I initialized InkCollector object :
myInkCollector = new InkCollector(panelInk.Handle);
myInkCollector.Enabled = true;

I tested to constuct InkCollector with 2 parameters :
Tablets tb = new Tablets();
Tablet tablet = null
foreach(Tablet theTB in tb)
{
tablet = theTB;
}
myInkCollector = new InkCollector(panelInk.Handle,tablet);

but not result for NormalPressure.
My tablet device is Trust model: Wireless Tablet TB-2100
http://www.trust.com/products/defaul...NCH&item=12052
If you know how to decide my problem write me on E-mail: dilianl@abv.bg or
dilianl******.com

Hi,

I am not familiar with this specific Tablet model but my guess is that it
doesn't come with a proper HID driver that complies with the requirements for
TabletPC components. As a result, you only get the input through the system's
mouse architecture.

You can check the IsPacketPropertySupported() API [1] to see if the
device/driver actually supports NormalPressure.

Thanks,
Stefan Wick

[1] http://msdn2.microsoft.com/en-us/library/ms698162.aspx


"How to get NormalPressure from Tablet" wrote:

> I develop tablet application but have problem with normalPressure. I can get
> only X,Y and error when I try to get NormalPressure. I use the follow code:
> The array guidMy return only 2 elements X,Y guid.
>
> foreach (Stroke theStroke in theStrokes)
> {
> Guid[] guidMy = theStroke.PacketDescription;
>
> int[] theX =
> theStroke.GetPacketValuesByProperty(PacketProperty .X);
>
> int[] theY =
> theStroke.GetPacketValuesByProperty(PacketProperty .Y);
>
> int[] thePressure =
>
> theStroke.GetPacketValuesByProperty(PacketProperty .NormalPressure);
> }
>
> When I initialized InkCollector object :
> myInkCollector = new InkCollector(panelInk.Handle);
> myInkCollector.Enabled = true;
>
> I tested to constuct InkCollector with 2 parameters :
> Tablets tb = new Tablets();
> Tablet tablet = null
> foreach(Tablet theTB in tb)
> {
> tablet = theTB;
> }
> myInkCollector = new InkCollector(panelInk.Handle,tablet);
>
> but not result for NormalPressure.
> My tablet device is Trust model: Wireless Tablet TB-2100
> http://www.trust.com/products/defaul...NCH&item=12052
> If you know how to decide my problem write me on E-mail: dilianl@abv.bg or
> dilianl******.com
>
>

Thank you for advice.