Windows.Device.Input接口提供了识别可用的输入设备并获得这些设备的信息
KeyboardCapabilities
用于判断当前是否连接了键盘设备
其属性KeyboardPresent进行判断，当为0时表示未连接，不为0时表示已连接
Windows.Devices.Input.KeyboardCapabilities KeyboardCapabilities = new Windows.Devices.Input.KeyboardCapabilities(); string status = string .Format( "There is {0} keyboard present\n" , KeyboardCapabilities.KeyboardPresent != 0 ? "a" : "no" ); |
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MouseCapabilities
用于判断当前是否连接了鼠标设备
其属性比KeyboardCapabilities多了些，如下：
HorizontalWheelPresent 该值表明是否有带水平滚轮的鼠标连接
MousePresent 表明是否有鼠标连接
NumberOfButtons 该值表明当前连接的鼠标中按钮的数量，若有多个鼠标连接，则返回鼠标按钮个数最多的数量
SwapButtons 该值表明当前连接的鼠标设备中是否具有左右交换按钮的
VerticalWheelPresent 该值表明当前连接的鼠标设备中是否有垂直的滚轮
Windows.Devices.Input.MouseCapabilities MouseCapabilities = new Windows.Devices.Input.MouseCapabilities(); String info = string .Format( "There is {0} mouse present\n" , MouseCapabilities.MousePresent != 0 ? "a" : "no" ); info += string .Format( "There is {0} vertical mouse wheel present\n" , MouseCapabilities.VerticalWheelPresent != 0 ? "a" : "no" ); info += string .Format( "There is {0} horizontal mouse wheel present\n" , MouseCapabilities.HorizontalWheelPresent != 0 ? "a" : "no" ); info += string .Format( "The user has {0}opted to swap the mouse buttons\n" , MouseCapabilities.SwapButtons != 0 ? "" : "not " ); info += string .Format( "The mouse has {0} button(s)\n" , MouseCapabilities.NumberOfButtons); |
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TouchCapabilities
获得连接的触摸数字化仪的功能
Contats 表明支持所有数字化仪的最小联系人数量
TouchPresent 表明当前终端是否有数据化仪
Windows.Devices.Input.TouchCapabilities TouchCapabilities = new Windows.Devices.Input.TouchCapabilities(); String info = string .Format( "There is {0} digitizer present\n" , TouchCapabilities.TouchPresent != 0 ? "a" : "no" ); info += string .Format( "The digitizer supports {0} contacts\n" , TouchCapabilities.Contacts); |
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PointerDevice
识别连接的指针设备及它们的功能
var PointerDeviceList = Windows.Devices.Input.PointerDevice.GetPointerDevices(); string device= "" ; foreach (Windows.Devices.Input.PointerDevice PointerDevice in PointerDeviceList) { if (PointerDevice.PointerDeviceType == Windows.Devices.Input.PointerDeviceType.Mouse) { device = "mouse" ; } else if (PointerDevice.PointerDeviceType == Windows.Devices.Input.PointerDeviceType.Pen) { device= "pen" ; } else { device= "touch" ; } } |
今天就看了一点输入设备的功能用法,研究SMS收发信息的功能时,却被刚开始的 SmsDevice.GetDefaultAsync()获取信息设备给绊住了,报的错误是”服务尚未启动。 (异常来自 HRESULT:0x80070426) ”,不知道是不是要先开启什么,望知者还能提醒一番^_^
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Trackback:
http://www.cnblogs.com/jing870812/archive/2012/04/11/2443124.html