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      1. 有没有办法以编程方式判断系统是否启用了触摸?

        Is there a way to programmatically tell if a system is touch enabled?(有没有办法以编程方式判断系统是否启用了触摸?)

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                  本文介绍了有没有办法以编程方式判断系统是否启用了触摸?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我试图弄清楚如何以编程方式判断 Windows 7 机器是否启用了触控.是否有任何触摸 API(托管或非托管)可以帮助我实现这一目标?或者也许我可以检查注册表中的某些内容?

                  I'm trying to figure out how to programmatically tell if a Windows 7 machine has touch enabled. Are there any touch API's (managed or unmanaged) that can help me achieve this? Or perhaps something in the registry I can check?

                  推荐答案

                  使用GetSystemMetrics 以查找 SM_MAXIMUMTOUCHES 设置.

                  如果有数字转换器,则非零系统;否则,0.

                  Nonzero if there are digitizers in the system; otherwise, 0.

                  SM_MAXIMUMTOUCHES 返回最大值的合计最大值每个支持的联系人数量系统中的数字化仪.如果系统只有单点触控数字化仪,返回值为 1.如果系统有多点触控数字化仪,回归值是同时的数量硬件可以提供的联系方式.

                  SM_MAXIMUMTOUCHES returns the aggregate maximum of the maximum number of contacts supported by every digitizer in the system. If the system has only single-touch digitizers, the return value is 1. If the system has multi-touch digitizers, the return value is the number of simultaneous contacts the hardware can provide.

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