.

    public static Guid KSCATEGORY_REALTIME = new Guid("EB115FFC-10C8-4964-831D-6DCB02E6F23F");

.

    public static Guid GUID_DEVINTERFACE_USB_DEVICE = new Guid("A5DCBF10-6530-11D2-901F-00C04FB951ED");

.

    public static PropertyKey PKEY_GPS_AltitudeDenominator = new PropertyKey( 0x78342DCB, 0xE358, 0x4145, 0xAE, 0x9A, 0x6B, 0xFE, 0x4E, 0x0F, 0x9F, 0x51, 100);

.

    public static PropertyKey SENSOR_DATA_TYPE_LIGHT_LEVEL_LUX = new PropertyKey(0XE4C77CE2, 0XDCB7, 0X46E9, 0X84, 0X39, 0X4F, 0XEC, 0X54, 0X88, 0X33, 0XA6, 2); //[VT_R4]

.

    public static PropertyKey SENSOR_DATA_TYPE_LIGHT_TEMPERATURE_KELVIN = new PropertyKey(0XE4C77CE2, 0XDCB7, 0X46E9, 0X84, 0X39, 0X4F, 0XEC, 0X54, 0X88, 0X33, 0XA6, 3); //[VT_R4]

.

    public static PropertyKey SENSOR_DATA_TYPE_LIGHT_CHROMACITY = new PropertyKey(0XE4C77CE2, 0XDCB7, 0X46E9, 0X84, 0X39, 0X4F, 0XEC, 0X54, 0X88, 0X33, 0XA6, 4); //[VT_VECTOR|VT_R4]

.

Summary

The BuildCommDCBAndTimeouts API

.

static extern bool BuildCommDCBAndTimeouts(string lpDef, [Out] ref DCB lpDCB,

.

Documentation

[BuildCommDCBAndTimeouts] on MSDN

.

static extern bool GetCommState(IntPtr hFile, [Out] ref DCB lpDCB);

.

     ByRef lpDCB As DCB) As Boolean

.

            internal struct DCB

.

            public Int32 DCBLength;

.

            public DCB dcb;

.

static extern bool SetCommState(IntPtr hFile, [In] ref DCB lpDCB);

.

     ByRef lpDCB As DCB) As Boolean

.

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.

        /// <summary>694. ERROR DCB NOT FOUND </summary>

.

        ERROR_DCB_NOT_FOUND,

.

Summary

The GetDCBrushColor API

.

static extern uint GetDCBrushColor(IntPtr hdc);

.

Documentation

[GetDCBrushColor] on MSDN

.

   DCB dcb;

.

The DCB structure defines the control setting for a serial communications device.

.

internal struct Dcb

.

    internal uint DCBLength;

.

    static Dcb()

.

Private Type DCB

.

    DCBlength As Long

.

  Public Structure DCB

.

    Public DCBlength As Int32

.

Dcb myDcb = new Dcb();

.

myDcb.Binary = true;

.

myDcb.DtrControl = DtrControl.Disable; // DtrControl is an enum

.

Documentation

[DCB] on MSDN