C# Definition:

    [Guid("148BD52B-A2AB-11CE-B11F-00AA00530503"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface ITaskTrigger
    {
    int SetTrigger( ref TASK_TRIGGER pTrigger);
    int GetTrigger( ref TASK_TRIGGER pTrigger);
    int GetTriggerString([MarshalAs(UnmanagedType.LPWStr)] out string wszTrigger);
    };

    public enum TASK_TRIGGER_TYPE
    {    
    TASK_TIME_TRIGGER_ONCE        = 0,
    TASK_TIME_TRIGGER_DAILY       = 1,
    TASK_TIME_TRIGGER_WEEKLY      = 2,
    TASK_TIME_TRIGGER_MONTHLYDATE     = 3,
    TASK_TIME_TRIGGER_MONTHLYDOW      = 4,
    TASK_EVENT_TRIGGER_ON_IDLE    = 5,
    TASK_EVENT_TRIGGER_AT_SYSTEMSTART = 6,
    TASK_EVENT_TRIGGER_AT_LOGON       = 7
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct TASK_TRIGGER
    {
    [MarshalAs(UnmanagedType.U2)] public ushort        cbTriggerSize;
    [MarshalAs(UnmanagedType.U2)] public ushort        Reserved1;
    [MarshalAs(UnmanagedType.U2)] public ushort        wBeginYear;
    [MarshalAs(UnmanagedType.U2)] public ushort        wBeginMonth;
    [MarshalAs(UnmanagedType.U2)] public ushort        wBeginDay;
    [MarshalAs(UnmanagedType.U2)] public ushort        wEndYear;
    [MarshalAs(UnmanagedType.U2)] public ushort        wEndMonth;
    [MarshalAs(UnmanagedType.U2)] public ushort        wEndDay;
    [MarshalAs(UnmanagedType.U2)] public ushort        wStartHour;
    [MarshalAs(UnmanagedType.U2)] public ushort        wStartMinute;
    [MarshalAs(UnmanagedType.U4)] public uint          MinutesDuration;
    [MarshalAs(UnmanagedType.U4)] public uint          MinutesInterval;
    [MarshalAs(UnmanagedType.U4)] public uint          rgFlags;
    [MarshalAs(UnmanagedType.U4)] public TASK_TRIGGER_TYPE TriggerType;
    [MarshalAs(UnmanagedType.U2)] public ushort        item1;
    [MarshalAs(UnmanagedType.U2)] public ushort        item2;
    [MarshalAs(UnmanagedType.U2)] public ushort        item3;
    [MarshalAs(UnmanagedType.U2)] public ushort        item4;
    [MarshalAs(UnmanagedType.U2)] public ushort        Reserved2;
    [MarshalAs(UnmanagedType.U2)] public ushort        wRandomMinutesInterval;
    [MarshalAs(UnmanagedType.U2)]     public ushort          cbTriggerSize;
    [MarshalAs(UnmanagedType.U2)]     public ushort          Reserved1;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wBeginYear;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wBeginMonth;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wBeginDay;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wEndYear;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wEndMonth;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wEndDay;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wStartHour;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wStartMinute;
    [MarshalAs(UnmanagedType.U4)]     public uint        MinutesDuration;
    [MarshalAs(UnmanagedType.U4)]     public uint        MinutesInterval;
    [MarshalAs(UnmanagedType.U4)]     public uint        rgFlags;
    [MarshalAs(UnmanagedType.U4)]     public TASK_TRIGGER_TYPE   TriggerType;
    [MarshalAs(UnmanagedType.U2)]     public ushort          item1;
    [MarshalAs(UnmanagedType.U2)]     public ushort          item2;
    [MarshalAs(UnmanagedType.U2)]     public ushort          item3;
    [MarshalAs(UnmanagedType.U2)]     public ushort          item4;
    [MarshalAs(UnmanagedType.U2)]     public ushort          Reserved2;
    [MarshalAs(UnmanagedType.U2)]     public ushort          wRandomMinutesInterval;

    public ushort DaysInterval      { get { return item1; } set { item1 = value; } }
    public ushort WeeksInterval     { get { return item1; } set { item1 = value; } }
    public ushort rgfDaysOfTheWeek  { get { return item2; } set { item2 = value; } }
    public ushort wWhichWeek    { get { return item1; } set { item1 = value; } }
    public ushort rgfMonths     { get { return item3; } set { item3 = value; } }
    public uint   rgfDays       { get { return ((uint)item1 <<  0) |
                               ((uint)item2 << 16);           }
                      set { item1 = (ushort)((value >>  0) & 0xFFFF);
                        item2 = (ushort)((value >> 16) & 0xFFFF); }}

    static public TASK_TRIGGER CreateInstance()
    {
        TASK_TRIGGER obj = new TASK_TRIGGER();
        obj.cbTriggerSize = (ushort)Marshal.SizeOf(obj);
        return obj;
    }
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct SYSTEMTIME
    {
    [MarshalAs(UnmanagedType.U2)] short Year;
    [MarshalAs(UnmanagedType.U2)] short Month;
    [MarshalAs(UnmanagedType.U2)] short DayOfWeek;
    [MarshalAs(UnmanagedType.U2)] short Day;
    [MarshalAs(UnmanagedType.U2)] short Hour;
    [MarshalAs(UnmanagedType.U2)] short Minute;
    [MarshalAs(UnmanagedType.U2)] short Second;
    [MarshalAs(UnmanagedType.U2)] short Milliseconds;
    }

VB Definition:

<ComImport> _
<Guid("TODO")> _
'TODO: Insert <InterfaceType(ComInterfaceType.InterfaceIsIUnknown)> _ if this doesn't derive from IDispatch
Interface ITaskTrigger
   TODO
End Interface

User-Defined Types:

None.

Notes:

None.

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