如何获得图形手写笔压力值？ [英] How to get graphic tablet pen pressure value?

问题描述

我使用的是Wacom的Bamboo笔数位板，我想能在C＃编写我的应用程序来获得它的笔压值。我怎么做？是否有可能允许一个在Windows 7上得到笔值的API？

I'm using a Wacom Bamboo Pen tablet and I'd like to be able to get its pen pressure value in my application written in C#. How do I do that? Is there maybe an API that allows one to get pen values on Windows 7?

推荐答案

Wacom公司提供的广泛的API 直接从tablet.The API获取的数据包括用于检测压力，倾斜和其他交互示例代码：

Wacom provides an extensive API to get data directly from the tablet.The API includes example code for detecting pressure, tilt and other interactions:

• 倾斜试验 ：演示压力，使用橡皮和笔倾斜性能


• 的压力测试 ：演示如何检测和显示笔压力

• Tilt Test: Demonstrates pressure, use of the eraser and pen tilt properties
• Pressure Test: Demonstrates how to detect and display pen pressure

这些代码示例是C，但也有例子，在C＃.NET，其中包括代码来处理压力：

These code samples are in C, but there are also examples that in c#.net that include code to handle pressure:

• 的WintabDN ：接口，使用Wintab一个.NET涂鸦和平板对照样品

使用这个项目为例，你可以得到这样的压力：

Using this project as an example, you can get the pressure like this:

// Create a data object and hook a packetlistener to receive
// updatse by the tablet
m_wtData = new CWintabData();
m_wtData.SetWTPacketEventHandler(handler);

//Handles packet receive event
void handler(object sender,MessageReceivedEventArgs e)
{
     //Get the packet id
     uint pktID = (uint)eventArgs_I.Message.WParam;

     //Get the data for that packet
     WintabPacket pkt = m_wtData.GetDataPacket((uint)eventArgs_I.Message.LParam, pktID);

     //Grab the pressure
     var pressure = pk.pkNormalPressure.pkAbsoluteNormalPressure;
}

接下来，这里是一个的CodeProject 解释如何使用的WPF InkCanvas

Next, here is a CodeProject that explains how to use the Wacom Tablet with the WPF InkCanvas

一个很好的起点在Windows上开发有关的任何平板电脑也是油墨API 。

A good starting point for any tablet related development on windows is also the Ink API.

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