[275] | 1 | Namespace System
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[36] | 2 |
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[275] | 3 |
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[36] | 4 | Class DateTime
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| 5 | m_Date As Int64
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| 6 | Public
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[209] | 7 | Static MaxValue = 3162240000000000000 As Int64 'Const TicksPerDay*366*10000
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| 8 | Static MinValue = 316224000000000 As Int64 'Const TicksPerDay*366
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[36] | 9 |
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[163] | 10 | Sub DateTime()
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[209] | 11 | initialize(MinValue, DateTimeKind.Unspecified)
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[163] | 12 | End Sub
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| 13 |
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[36] | 14 | Sub DateTime(ticks As Int64)
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[209] | 15 | initialize(ticks, DateTimeKind.Unspecified)
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[36] | 16 | End Sub
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| 17 |
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| 18 | Sub DateTime(ticks As Int64, kind As DateTimeKind)
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[209] | 19 | initialize(ticks, kind)
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[36] | 20 | End Sub
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| 21 |
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| 22 | Sub DateTime(year As Long, month As Long, day As Long)
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[209] | 23 | initialize(year, month, day, 0, 0, 0, 0, DateTimeKind.Unspecified)
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[36] | 24 | End Sub
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| 25 |
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| 26 | Sub DateTime(year As Long, month As Long, day As Long, kind As DateTimeKind)
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[209] | 27 | initialize(year, month, day, 0, 0, 0, 0, kind)
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[36] | 28 | End Sub
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| 29 |
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| 30 | Sub DateTime(year As Long, month As Long, day As Long, hour As Long, minute As Long, second As Long)
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[209] | 31 | initialize(year, month, day, hour, minute, second, 0, DateTimeKind.Unspecified)
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[36] | 32 | End Sub
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| 33 |
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[103] | 34 | Sub DateTime(year As Long, month As Long, day As Long, hour As Long, minute As Long, second As Long, kind As DateTimeKind)
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[209] | 35 | initialize(year, month, day, hour, minute, second, 0, kind)
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[103] | 36 | End Sub
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[36] | 37 |
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| 38 | Sub DateTime(year As Long, month As Long, day As Long, hour As Long, minute As Long, second As Long, millisecond As Long)
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[209] | 39 | initialize(year, month, day, hour, minute, second, millisecond, DateTimeKind.Unspecified)
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[36] | 40 | End Sub
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| 41 |
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| 42 | Sub DateTime(year As Long, month As Long, day As Long, hour As Long, minute As Long, second As Long, millisecond As Long, kind As DateTimeKind)
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[209] | 43 | initialize(year, month, day, hour, minute, second, millisecond, kind)
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[36] | 44 | End Sub
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| 45 |
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| 46 | Sub DateTime(ByRef time As SYSTEMTIME)
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[209] | 47 | initialize(time.wYear, time.wMonth, time.wDay, time.wHour, time.wMinute, time.wSecond, time.wMilliseconds, DateTimeKind.Unspecified)
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[36] | 48 | End Sub
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| 49 |
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| 50 | Sub DateTime(ByRef time As SYSTEMTIME, kind As DateTimeKind)
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[209] | 51 | initialize(time.wYear, time.wMonth, time.wDay, time.wHour, time.wMinute, time.wSecond, time.wMilliseconds, kind)
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[36] | 52 | End Sub
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| 53 |
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[40] | 54 | 'Copy Constructor
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[268] | 55 | Sub DateTime(dateTime As DateTime)
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[209] | 56 | This.m_Date = dateTime.m_Date
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[40] | 57 | End Sub
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| 58 |
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[36] | 59 | Sub ~DateTime()
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| 60 | End Sub
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| 61 |
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[268] | 62 | Function Operator + (value As TimeSpan) As DateTime
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[209] | 63 | Return New DateTime(Ticks + value.Ticks)
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[107] | 64 | End Function
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| 65 |
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[268] | 66 | Function Operator - (value As DateTime) As TimeSpan
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[107] | 67 | Return TimeSpan.FromTicks(Ticks - value.Ticks)
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| 68 | End Function
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| 69 |
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[268] | 70 | Function Operator - (value As TimeSpan) As DateTime
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[209] | 71 | Return New DateTime(Ticks - value.Ticks)
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[107] | 72 | End Function
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| 73 |
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[268] | 74 | Function Operator == (value As DateTime) As Boolean
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[36] | 75 | Return Equals(value)
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| 76 | End Function
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| 77 |
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[268] | 78 | Function Operator <> (value As DateTime) As Boolean
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[36] | 79 | Return Not Equals(value)
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| 80 | End Function
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| 81 |
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[268] | 82 | Function Operator > (value As DateTime) As Boolean
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[36] | 83 | If DateTime.Compare(This, value) > 0 Then
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[93] | 84 | Return True
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[36] | 85 | Else
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[93] | 86 | Return False
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[36] | 87 | End If
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| 88 | End Function
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| 89 |
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[268] | 90 | Function Operator < (value As DateTime) As Boolean
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[36] | 91 | If DateTime.Compare(This, value) < 0 Then
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[93] | 92 | Return True
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[36] | 93 | Else
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[93] | 94 | Return False
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[36] | 95 | End If
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| 96 | End Function
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| 97 |
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[268] | 98 | Function Operator >= (value As DateTime) As Boolean
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[36] | 99 | If DateTime.Compare(This, value) => 0 Then
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[93] | 100 | Return True
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[36] | 101 | Else
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[93] | 102 | Return False
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[36] | 103 | End If
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| 104 | End Function
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| 105 |
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[268] | 106 | Function Operator <= (value As DateTime) As Boolean
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[36] | 107 | If DateTime.Compare(This, value) <= 0 Then
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[93] | 108 | Return True
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[36] | 109 | Else
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[93] | 110 | Return False
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[36] | 111 | End If
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| 112 | End Function
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| 113 |
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[209] | 114 | 'Public Properties
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[36] | 115 | Function Ticks() As Int64
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| 116 | Return (m_Date And &H3FFFFFFFFFFFFFFF)
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| 117 | End Function
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| 118 |
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| 119 | Function Millisecond() As Long
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[107] | 120 | Return (Ticks \ TimeSpan.TicksPerMillisecond Mod 1000) As Long
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[36] | 121 | End Function
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| 122 |
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| 123 | Function Second() As Long
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[107] | 124 | Return (Ticks \ TimeSpan.TicksPerSecond Mod 60) As Long
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[36] | 125 | End Function
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| 126 |
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| 127 | Function Minute() As Long
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[107] | 128 | Return (Ticks \ TimeSpan.TicksPerMinute Mod 60) As Long
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[36] | 129 | End Function
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| 130 |
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| 131 | Function Hour() As Long
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[107] | 132 | Return (Ticks \ TimeSpan.TicksPerHour Mod 24) As Long
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[36] | 133 | End Function
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| 134 |
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| 135 | Function Day() As Long
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[263] | 136 | Return DayOfYear - totalDaysOfMonth(Year, Month - 1)
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[36] | 137 | End Function
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| 138 |
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| 139 | Function Month() As Long
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[209] | 140 | Dim year = Year As Long
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| 141 | Dim day = DayOfYear As Long
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| 142 | Dim i = 1 As Long
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[263] | 143 | While day > totalDaysOfMonth(year, i)
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[209] | 144 | i++
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| 145 | Wend
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| 146 | Return i
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[36] | 147 | End Function
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| 148 |
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| 149 | Function Year() As Long
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[209] | 150 | Dim day = (Ticks \ TimeSpan.TicksPerDay) As Long
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[263] | 151 | Dim year = Int((day + day \ 36524 - day \ 146097) / 365.25) + 1 As Long
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| 152 | If day - yearToDay(year - 1) + 1 = 366 Then
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[209] | 153 | Return year + 1
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| 154 | Else
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| 155 | Return year
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| 156 | End If
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[36] | 157 | End Function
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| 158 |
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[209] | 159 | Function DayOfWeek() As Long 'As DayOfWeek
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[263] | 160 | Return ((Ticks \ TimeSpan.TicksPerDay) Mod 7) As Long + 1
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[36] | 161 | End Function
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| 162 |
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[81] | 163 | Function Kind() As DateTimeKind
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[36] | 164 | Return kindFromBinary(m_Date)
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| 165 | End Function
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| 166 |
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| 167 | Function DayOfYear() As Long
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[263] | 168 | Return ((Ticks \ TimeSpan.TicksPerDay) - yearToDay(Year) + 1) As Long
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[36] | 169 | End Function
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| 170 |
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| 171 | Function Date() As DateTime
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[209] | 172 | Return New DateTime(Year, Month, Day, Kind)
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[36] | 173 | End Function
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| 174 |
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| 175 | Static Function Now() As DateTime
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| 176 | Dim time As SYSTEMTIME
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| 177 | GetLocalTime(time)
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[209] | 178 | Return New DateTime(time, DateTimeKind.Local)
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[36] | 179 | End Function
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| 180 |
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[272] | 181 | Static Function Today() As DateTime
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[36] | 182 | Dim time As SYSTEMTIME
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| 183 | GetLocalTime(time)
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[209] | 184 | Return New DateTime(time.wYear, time.wMonth, time.wDay, DateTimeKind.Local)
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[36] | 185 | End Function
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| 186 |
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| 187 | Static Function UtcNow() As DateTime
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| 188 | Dim time As SYSTEMTIME
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| 189 | GetSystemTime(time)
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[209] | 190 | Return New DateTime(time, DateTimeKind.Utc)
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[36] | 191 | End Function
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| 192 |
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[209] | 193 | 'Public Methods
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[268] | 194 | Static Function Compare(t1 As DateTime, t2 As DateTime) As Int64
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[36] | 195 | Return t1.Ticks - t2.Ticks
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| 196 | End Function
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| 197 |
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[268] | 198 | Function Equals(value As DateTime) As Boolean
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[36] | 199 | If value.m_Date = m_Date Then
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[93] | 200 | Return True
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[36] | 201 | Else
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[93] | 202 | Return False
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[36] | 203 | End If
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| 204 | End Function
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| 205 |
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[268] | 206 | Static Function Equals(t1 As DateTime, t2 As DateTime) As Boolean
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[36] | 207 | If t1.m_Date = t2.m_Date Then
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[93] | 208 | Return True
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[36] | 209 | Else
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[93] | 210 | Return False
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[36] | 211 | End If
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| 212 | End Function
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| 213 |
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[166] | 214 | Override Function GetHashCode() As Long
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| 215 | Return HIDWORD(m_Date) Xor LODWORD(m_Date)
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| 216 | End Function
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| 217 |
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[268] | 218 | Function Add(value As TimeSpan) As DateTime
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[107] | 219 | Return This + value
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| 220 | End Function
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| 221 |
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| 222 | Function AddTicks(value As Int64) As DateTime
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[209] | 223 | Return New DateTime(Ticks + value, Kind )
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[107] | 224 | End Function
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[36] | 225 |
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[107] | 226 | Function AddMilliseconds(value As Double) As DateTime
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| 227 | Return AddTicks((value * TimeSpan.TicksPerMillisecond) As Int64)
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| 228 | End Function
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[36] | 229 |
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[107] | 230 | Function AddSeconds(value As Double) As DateTime
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| 231 | Return AddTicks((value * TimeSpan.TicksPerSecond) As Int64)
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| 232 | End Function
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[36] | 233 |
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[107] | 234 | Function AddMinutes(value As Double) As DateTime
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| 235 | Return AddTicks((value * TimeSpan.TicksPerMinute) As Int64)
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| 236 | End Function
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[36] | 237 |
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[107] | 238 | Function AddHours(value As Double) As DateTime
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| 239 | Return AddTicks((value * TimeSpan.TicksPerHour) As Int64)
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| 240 | End Function
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[36] | 241 |
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[107] | 242 | Function AddDays(value As Double) As DateTime
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| 243 | Return AddTicks((value * TimeSpan.TicksPerDay) As Int64)
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| 244 | End Function
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| 245 |
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| 246 | Function AddYears(value As Double) As DateTime
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[263] | 247 | Dim date = New DateTime(Year + Int(value), Month, Day, Hour, Minute, Second, Millisecond, Kind)
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| 248 | Dim ticks = Ticks _
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| 249 | - (yearToDay(Year) + totalDaysOfMonth(Year, Month - 1) + Day - 1) * TimeSpan.TicksPerDay _
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| 250 | - Hour * TimeSpan.TicksPerHour _
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| 251 | - Minute * TimeSpan.TicksPerMinute _
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| 252 | - Second * TimeSpan.TicksPerSecond _
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| 253 | - Millisecond * TimeSpan.TicksPerMillisecond As Int64
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| 254 | If IsLeapYear(Year + Int(value)) Then
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[209] | 255 | ticks += (value - Int(value)) * 366 * TimeSpan.TicksPerDay
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[36] | 256 | Else
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[209] | 257 | ticks += (value - Int(value)) * 365 * TimeSpan.TicksPerDay
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[36] | 258 | End If
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[263] | 259 | Return date.AddTicks(ticks)
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[107] | 260 | End Function
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[36] | 261 |
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[268] | 262 | Function Subtract(value As DateTime) As TimeSpan
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| 263 | Return This - value
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[107] | 264 | End Function
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| 265 |
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[268] | 266 | Function Subtract(value As TimeSpan) As DateTime
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| 267 | Return This - value
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[107] | 268 | End Function
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| 269 |
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[93] | 270 | Static Function DaysInMonth(year As Long, month As Long) As Long
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[36] | 271 | If year < 1 Or year > 9999 Or month < 1 Or month > 12 Then
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| 272 | 'ArgumentOutOfRangeException
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| 273 | debug
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| 274 | End If
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[209] | 275 |
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[93] | 276 | If IsLeapYear(year) And month = 2 Then
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| 277 | Return 29
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| 278 | Else
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| 279 | Dim daysInMonth[11] = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] As Byte
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| 280 | Return daysInMonth[month - 1]
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| 281 | End If
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[36] | 282 | End Function
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| 283 |
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[93] | 284 | Static Function IsLeapYear(year As Long) As Boolean
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| 285 | If (year Mod 400) = 0 Then Return True
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| 286 | If (year Mod 100) = 0 Then Return False
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| 287 | If (year Mod 4) = 0 Then Return True
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[103] | 288 | Return False
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[36] | 289 | End Function
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| 290 |
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| 291 | Function GetDateTimeFormats() As String
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[209] | 292 | Dim time = getSystemTime() 'As SYSTEMTIME を記述すると内部エラーが発生
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| 293 | Dim dateFormatSize = GetDateFormat(LOCALE_USER_DEFAULT, 0, time, NULL, NULL, 0)
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| 294 | Dim timeFormatSize = GetTimeFormat(LOCALE_USER_DEFAULT, 0, time, NULL, NULL, 0)
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[272] | 295 | Dim strLength = dateFormatSize + timeFormatSize
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| 296 | Dim dateTimeFormats = GC_malloc_atomic(SizeOf (TCHAR) * (strLength)) As PTSTR
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[209] | 297 | GetDateFormat(LOCALE_USER_DEFAULT, 0, time, NULL, dateTimeFormats, dateFormatSize)
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| 298 | dateTimeFormats[dateFormatSize - 1] = Asc(" ")
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| 299 | GetTimeFormat(LOCALE_USER_DEFAULT, 0, time, NULL, dateTimeFormats + dateFormatSize, timeFormatSize)
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[272] | 300 | 'Debug
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| 301 | Return New String(dateTimeFormats, strLength)
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[36] | 302 | End Function
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| 303 |
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[209] | 304 | Function GetDateTimeFormats(format As *TCHAR) As String
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| 305 | Dim time = getSystemTime() 'As SYSTEMTIME を記述すると内部エラーが発生
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| 306 | Dim dateFormatSize = GetDateFormat(LOCALE_USER_DEFAULT, 0, time, format, NULL, 0)
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| 307 | Dim dateFormats = malloc(dateFormatSize) As PTSTR
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| 308 | GetDateFormat(LOCALE_USER_DEFAULT, 0, time, format, dateFormats, dateFormatSize)
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[73] | 309 |
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[209] | 310 | Dim dateTimeFormatSize = GetTimeFormat(LOCALE_USER_DEFAULT, 0, time, dateFormats, NULL, 0)
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| 311 | Dim dateTimeFormats = malloc(dateTimeFormatSize) As PTSTR
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| 312 | GetTimeFormat(LOCALE_USER_DEFAULT, 0, time, dateFormats, dateTimeFormats, dateTimeFormatSize)
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[207] | 313 |
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[209] | 314 | Return New String(dateTimeFormats)
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[73] | 315 | End Function
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| 316 |
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[209] | 317 | Static Function FromBinary(date As Int64) As DateTime
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| 318 | Return New DateTime((date And &H3FFFFFFFFFFFFFFF), kindFromBinary(date))
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[36] | 319 | End Function
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| 320 |
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| 321 | Function ToBinary() As Int64
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| 322 | Return m_Date
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| 323 | End Function
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| 324 |
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[209] | 325 | Static Function FromFileTime(ByRef fileTime As FILETIME) As DateTime
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[36] | 326 | Dim localTime As FILETIME
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[82] | 327 | Dim time As SYSTEMTIME
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[36] | 328 | FileTimeToLocalFileTime(fileTime, localTime)
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| 329 | FileTimeToSystemTime(localTime, time)
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[209] | 330 | Return New DateTime(time, DateTimeKind.Local)
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[36] | 331 | End Function
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| 332 |
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| 333 | Function ToFileTime() As FILETIME
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[209] | 334 | Dim time = getSystemTime() 'As SYSTEMTIME を記述すると内部エラーが発生 rev.207
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[36] | 335 | Dim fileTime As FILETIME
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| 336 | SystemTimeToFileTime(time, fileTime)
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| 337 | Return fileTime
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| 338 | End Function
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| 339 |
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[209] | 340 | Static Function FromFileTimeUtc(ByRef fileTime As FILETIME) As DateTime
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[36] | 341 | Dim time As SYSTEMTIME
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| 342 | FileTimeToSystemTime(fileTime, time)
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[209] | 343 | Return New DateTime(time, DateTimeKind.Utc)
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[36] | 344 | End Function
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| 345 |
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| 346 | Function ToFileTimeUtc() As FILETIME
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[209] | 347 | Dim fileTime = ToFileTime() 'As FILETIME を記述すると内部エラー rev.207
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[103] | 348 | If Kind = DateTimeKind.Utc Then
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[209] | 349 | Return fileTime
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[36] | 350 | Else
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[209] | 351 | Dim utcTime As FILETIME
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| 352 | LocalFileTimeToFileTime(fileTime, utcTime)
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| 353 | Return utcTime
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[36] | 354 | End If
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| 355 | End Function
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| 356 |
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| 357 | Function ToLocalTime() As DateTime
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[103] | 358 | If Kind = DateTimeKind.Local Then
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[209] | 359 | Return New DateTime(This)
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[82] | 360 | Else
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[209] | 361 | Dim fileTime = ToFileTime() '直接入れると計算できなくなります。 rev.207
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| 362 | Return DateTime.FromFileTime(fileTime)
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[81] | 363 | End If
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[36] | 364 | End Function
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[81] | 365 |
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[228] | 366 | Override Function ToString() As String
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| 367 | Return GetDateTimeFormats()
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| 368 | End Function
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| 369 |
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[81] | 370 | Function ToUniversalTime() As DateTime
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[103] | 371 | If Kind = DateTimeKind.Utc Then
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[209] | 372 | Return New DateTime(m_Date)
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[82] | 373 | Else
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[209] | 374 | Dim fileTime = ToFileTimeUtc() '直接入れると計算できなくなります。 rev.207
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| 375 | Return DateTime.FromFileTimeUtc(fileTime)
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[81] | 376 | End If
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| 377 | End Function
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[209] | 378 |
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[36] | 379 | Private
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[209] | 380 | Sub initialize(ticks As Int64, kind As DateTimeKind)
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| 381 | Kind = kind
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| 382 | Ticks = ticks
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| 383 | End Sub
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| 384 |
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| 385 | Sub initialize(year As Long, month As Long, day As Long, hour As Long, minute As Long, second As Long, millisecond As Long, kind As DateTimeKind)
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| 386 | If month < 1 Or month > 12 _
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| 387 | Or day < 1 Or day > DaysInMonth(year, month) _
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| 388 | Or hour < 0 Or hour => 24 _
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| 389 | Or minute < 0 Or minute => 60 _
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| 390 | Or second < 0 Or second => 60 _
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| 391 | Or millisecond < 0 Or millisecond => 1000 Then
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| 392 | debug 'ArgumentOutOfRangeException
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| 393 | End If
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| 394 |
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| 395 | initialize(
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[263] | 396 | yearToDay(year) * TimeSpan.TicksPerDay _
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| 397 | + totalDaysOfMonth(year, month - 1) * TimeSpan.TicksPerDay _
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[209] | 398 | + (day - 1) * TimeSpan.TicksPerDay _
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| 399 | + hour * TimeSpan.TicksPerHour _
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| 400 | + minute * TimeSpan.TicksPerMinute _
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| 401 | + second * TimeSpan.TicksPerSecond _
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| 402 | + millisecond * TimeSpan.TicksPerMillisecond,
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| 403 | kind
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| 404 | )
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| 405 | End Sub
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| 406 |
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[36] | 407 | Sub Ticks(value As Int64)
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[209] | 408 | If value < MinValue Or value > MaxValue Then
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| 409 | debug 'ArgumentOutOfRangeException
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| 410 | End If
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| 411 |
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| 412 | Dim temp = Kind As DateTimeKind
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[36] | 413 | m_Date = value
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[209] | 414 | Kind = temp
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[36] | 415 | End Sub
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| 416 |
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| 417 | Sub Kind(kind As DateTimeKind)
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| 418 | Dim temp As Int64
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| 419 | temp = kind
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| 420 | temp = (temp << 62) And &HC000000000000000
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| 421 | m_Date = (m_Date And &H3FFFFFFFFFFFFFFF) Or temp
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| 422 | End Sub
|
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| 423 |
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[209] | 424 | Static Function kindFromBinary(date As Int64) As DateTimeKind
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| 425 | date = (date >> 62) And &H03
|
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| 426 | If date = &H01 Then
|
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[103] | 427 | Return DateTimeKind.Local
|
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[209] | 428 | ElseIf date = &H02 Then
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[103] | 429 | Return DateTimeKind.Unspecified
|
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[209] | 430 | ElseIf date = &H03 Then
|
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[103] | 431 | Return DateTimeKind.Utc
|
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[36] | 432 | End If
|
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[246] | 433 |
|
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| 434 | ' ここにはこないはず
|
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| 435 | debug
|
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[36] | 436 | End Function
|
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[209] | 437 |
|
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| 438 | Function getSystemTime() As SYSTEMTIME
|
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| 439 | Dim time As SYSTEMTIME
|
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| 440 | With time
|
---|
| 441 | .wYear = Year As Word
|
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| 442 | .wMonth = Month As Word
|
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| 443 | .wDayOfWeek = DayOfWeek As Word
|
---|
| 444 | .wDay = Day As Word
|
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| 445 | .wHour = Hour As Word
|
---|
| 446 | .wMinute = Minute As Word
|
---|
| 447 | .wSecond = Second As Word
|
---|
| 448 | .wMilliseconds = Millisecond As Word
|
---|
| 449 | End With
|
---|
| 450 | Return time
|
---|
| 451 | End Function
|
---|
| 452 |
|
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[263] | 453 | Static Function yearToDay(year As Long) As Long
|
---|
| 454 | year--
|
---|
[209] | 455 | Return (Int(year * 365.25) - Int(year * 0.01) + Int(year * 0.0025))
|
---|
| 456 | End Function
|
---|
| 457 |
|
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[263] | 458 | Static Function totalDaysOfMonth(year As Long, month As Long) As Long
|
---|
[209] | 459 | Dim days As Long
|
---|
| 460 | Dim i As Long
|
---|
| 461 | For i = 1 To month
|
---|
| 462 | days += DaysInMonth(year, i)
|
---|
| 463 | Next
|
---|
| 464 | Return days
|
---|
| 465 | End Function
|
---|
[36] | 466 | End Class
|
---|
| 467 |
|
---|
[103] | 468 | Enum DateTimeKind
|
---|
[36] | 469 | Local
|
---|
| 470 | Unspecified
|
---|
| 471 | Utc
|
---|
| 472 | End Enum
|
---|
| 473 |
|
---|
[103] | 474 | Enum DayOfWeek
|
---|
[36] | 475 | Sunday = 0
|
---|
| 476 | Monday
|
---|
| 477 | Tuesday
|
---|
| 478 | Wednesday
|
---|
| 479 | Thursday
|
---|
| 480 | Friday
|
---|
| 481 | Saturday
|
---|
[275] | 482 | End Enum
|
---|
| 483 |
|
---|
| 484 |
|
---|
| 485 | End Namespace
|
---|