[英]How do I detect if a device is touch-enabled in c# for a WinForms app on Windows Embedded Standard 7
下面的代码在Windows 7上运行正常,但在Windows Embedded Standard 7上运行不正常:
[System.Runtime.InteropServices.DllImport("user32.dll")]
public static extern int GetSystemMetrics(int nIndex);
public static bool isTouchEnabled()
{
int MAXTOUCHES_INDEX = 0x95;
int maxTouches = GetSystemMetrics(MAXTOUCHES_INDEX);
return maxTouches > 0;
}
你可以试试这个:
var hasTouch = Windows.Devices.Input
.PointerDevice.GetPointerDevices()
.Any(p => p.PointerDeviceType == Windows.Devices.Input.PointerDeviceType.Touch);
有关此更多信息,请参阅
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