[138] | 1 | ' com/bstring.ab
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| 2 |
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| 3 | #require <ole2.ab>
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| 4 | #require <oleauto.ab>
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| 5 |
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| 6 | Class BString
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| 7 | Public
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| 8 | Sub BString()
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| 9 | bs = 0
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| 10 | End Sub
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| 11 |
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| 12 | Sub BString(len As DWord)
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[142] | 13 | bs = SysAllocStringLen(0, len)
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[138] | 14 | End Sub
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| 15 |
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| 16 | Sub BString(ByRef s As BString)
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| 17 | BString(s.bs, s.Length)
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| 18 | End Sub
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| 19 |
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| 20 | Sub BString(s As LPCOLESTR)
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| 21 | bs = SysAllocString(s)
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| 22 | End Sub
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| 23 |
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| 24 | Sub BString(s As LPCOLESTR, len As DWord)
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| 25 | bs = SysAllocStringLen(s, len)
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| 26 | End Sub
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| 27 |
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| 28 | Sub BString(s As PCSTR)
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| 29 | BString(s, lstrlenA(s))
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| 30 | End Sub
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| 31 |
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| 32 | Sub BString(s As PCSTR, len As DWord)
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| 33 | Dim lenBS = MultiByteToWideChar(CP_THREAD_ACP, 0, s, len, 0, 0)
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| 34 | bs = SysAllocStringLen(0, lenBS)
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| 35 | MultiByteToWideChar(CP_THREAD_ACP, 0, s, len, bs, lenBS)
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| 36 | End Sub
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| 37 |
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| 38 | Sub BString(ByRef s As String)
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| 39 | BString(s.StrPtr, s.Length As DWord)
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| 40 | End Sub
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| 41 |
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[142] | 42 | Sub ~BString()
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| 43 | Clear()
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| 44 | End Sub
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| 45 |
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[138] | 46 | Sub Operator =(ByRef bstr As BString)
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[142] | 47 | Clear()
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[138] | 48 | BString(bstr)
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| 49 | End Sub
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| 50 |
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[142] | 51 | Sub Operator =(s As LPCOLESTR)
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[138] | 52 | Clear()
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[142] | 53 | BString(s)
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[138] | 54 | End Sub
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| 55 |
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[142] | 56 | Sub Assign(ByRef bstr As BString)
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| 57 | Clear()
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| 58 | BString(bstr)
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| 59 | End Sub
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| 60 |
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| 61 | Sub Assign(s As LPCOLESTR)
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| 62 | Clear()
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| 63 | BString(s)
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| 64 | End Sub
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| 65 |
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| 66 | Sub AssignFromBStr(bstr As BSTR)
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| 67 | Clear()
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[175] | 68 | String.Copy(bs, bstr)
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[142] | 69 | End Sub
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| 70 |
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[175] | 71 | Const Function Copy() As BSTR
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| 72 | BString.Copy(Copy, bs)
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| 73 | End Function
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| 74 |
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[138] | 75 | Sub Clear()
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| 76 | If bs <> 0 Then
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| 77 | SysFreeString(bs)
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| 78 | bs = 0
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| 79 | End If
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| 80 | End Sub
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| 81 |
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| 82 | Sub Attach(bstr As BSTR)
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| 83 | Clear()
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[175] | 84 | BString.Move(bs, bstr)
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[138] | 85 | End Sub
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| 86 |
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| 87 | Function Detach() As BSTR
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[175] | 88 | BString.Move(Detach, bs)
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[138] | 89 | End Function
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| 90 |
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| 91 | Function BStr() As BSTR
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| 92 | BStr = bs
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| 93 | End Function
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| 94 |
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| 95 | Const Function Length() As DWord
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| 96 | Length = SysStringLen(bs)
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| 97 | End Function
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| 98 |
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[142] | 99 | Const Function Operator [](i As SIZE_T) As OLECHAR
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[138] | 100 | #ifdef _DEBUG
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| 101 | If i > Length Then
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| 102 | 'Throw OutOfRangeException
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| 103 | End If
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| 104 | #endif
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| 105 | Return bs[i]
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| 106 | End Function
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| 107 |
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| 108 | Sub Operator []=(i As SIZE_T, c As OLECHAR)
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| 109 | #ifdef _DEBUG
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| 110 | If i > Length Then
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| 111 | 'Throw OutOfRangeException
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| 112 | End If
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| 113 | #endif
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| 114 | bs[i] = c
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| 115 | End Sub
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| 116 |
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| 117 | Override Function ToString() As String
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[175] | 118 | Dim s As String(bs As PCWSTR, Length As Long)
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[138] | 119 | Return s
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| 120 | End Function
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| 121 |
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[175] | 122 | Override Function GetHashCode() As Long
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| 123 | Return _System_GetHashFromWordArray(bs, Length)
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| 124 | End Function
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| 125 |
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[138] | 126 | Private
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| 127 | bs As BSTR
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[175] | 128 |
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| 129 | Static Sub Copy(ByRef dst As BSTR, ByVal src As BSTR)
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| 130 | dst = SysAllocStringLen(src, SysStringLen(src))
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| 131 | End Sub
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| 132 |
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| 133 | Static Sub Move(ByRef dst As BSTR, ByRef src As BSTR)
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| 134 | dst = src
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| 135 | src = 0
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| 136 | End Sub
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[138] | 137 | End Class
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| 138 |
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