是否有可能让我的C＃WPF程序知道用户是否有触摸屏或不？ [英] Is it possible to let my c# wpf program know if the user has a touchscreen or not?

问题描述

我已经得到了具有人，当他们有一个触摸屏只能使用刷卡系统的登录应用程序。他们可以通过滑动他们的个人模式刷卡code登录。

I've got an login application that has a swipe system that people only can use when they have a touchscreen. They can login by swiping their personal pattern swipe code.

是否可以为您在C＃或WPF如果用户有触摸屏？即使他不使用它的触摸那个时候？

Is it possible to check in C# or WPF if the user has a touchscreen? Even when he isn't using touch on it at that time?

推荐答案

在C＃code，以找出是否存在触摸屏（如果它虽然不检查单或多点触摸设备）的使用 System.Windows.Input 命名空间 presentationCore 。

Within C# code to find out if a touch screen exists (doesn't check if its a single or multi-touch device though) by the using System.Windows.Input namespace in PresentationCore.

    public bool HasTouchInput()
    {
        foreach (TabletDevice tabletDevice in Tablet.TabletDevices)
        {
            //Only detect if it is a touch Screen not how many touches (i.e. Single touch or Multi-touch)
            if(tabletDevice.Type == TabletDeviceType.Touch)
                return true;
        }

        return false;
    }

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