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    void EnumDeviceCapabilities(

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    static extern Int32 DeviceCapabilities(

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        DeviceCapabilitiesFlags capability,

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        int nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_DUPLEX, IntPtr.Zero, (IntPtr)null);

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        nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_COLORDEVICE,    IntPtr.Zero, (IntPtr)null);

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        int nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINS, (IntPtr)null, (IntPtr)null);

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        nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINS, pAddr, (IntPtr)null);

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        nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINNAMES, (IntPtr)null, (IntPtr)null);

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        nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINNAMES, pAddr, (IntPtr)null);

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    public enum DeviceCapabilitiesFlags : short

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    Public EnumDeviceCapabilities

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    int nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_DUPLEX, IntPtr.Zero, (IntPtr)null);

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    nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_COLORDEVICE,    IntPtr.Zero, (IntPtr)null);

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    int nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINS, (IntPtr)null, (IntPtr)null);

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    nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINS, pAddr, (IntPtr)null);

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    nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINNAMES, (IntPtr)null, (IntPtr)null);

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    nRes = DeviceCapabilities(strDeviceName, strPort, DeviceCapabilitiesFlags.DC_BINNAMES, pAddr, (IntPtr)null);

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Documentation

[DeviceCapabilities] on MSDN

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    internal HIDP_CAPS GetDeviceCapabilities( SafeFileHandle hidHandle )