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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