@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: Part of the Task Scheduler 1.0 Interfaces, which consists of IEnumWorkItems, ITask, ITaskScheduler, ITaskTrigger and IScheduledWorkItem. The C# definition contains some helper code. Not all methods have been tested, so be careful! !!!!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; 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; } } !!!!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. Documentation: ITaskTrigger@msdn on MSDN
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