[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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| 13 | bs = SysAllocStringLen(len)
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| 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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| 42 | Sub Operator =(ByRef bstr As BString)
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| 43 | ~BString()
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| 44 | BString(bstr)
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| 45 | End Sub
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| 46 |
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| 47 | Sub ~BString()
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| 48 | Clear()
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| 49 | End Sub
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| 50 |
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| 51 | Sub Clear()
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| 52 | If bs <> 0 Then
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| 53 | SysFreeString(bs)
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| 54 | bs = 0
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| 55 | End If
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| 56 | End Sub
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| 57 |
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| 58 | Sub Attach(bstr As BSTR)
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| 59 | Clear()
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| 60 | bs = bstr
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| 61 | End Sub
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| 62 |
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| 63 | Function Detach() As BSTR
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| 64 | Detach = bs
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| 65 | bs = 0
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| 66 | End Function
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| 67 |
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| 68 | Function BStr() As BSTR
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| 69 | BStr = bs
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| 70 | End Function
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| 71 |
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| 72 | Const Function Length() As DWord
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| 73 | Length = SysStringLen(bs)
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| 74 | End Function
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| 75 |
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| 76 | Const Function Operator [](i As SIZE_T)
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| 77 | #ifdef _DEBUG
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| 78 | If i > Length Then
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| 79 | 'Throw OutOfRangeException
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| 80 | End If
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| 81 | #endif
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| 82 | Return bs[i]
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| 83 | End Function
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| 84 |
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| 85 | Sub Operator []=(i As SIZE_T, c As OLECHAR)
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| 86 | #ifdef _DEBUG
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| 87 | If i > Length Then
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| 88 | 'Throw OutOfRangeException
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| 89 | End If
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| 90 | #endif
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| 91 | bs[i] = c
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| 92 | End Sub
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| 93 |
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| 94 | Override Function ToString() As String
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| 95 | Dim s As String(bs, Length)
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| 96 | Return s
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| 97 | End Function
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| 98 |
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| 99 | Private
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| 100 | bs As BSTR
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| 101 | End Class
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| 102 |
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