1 | ' com/currency.ab
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2 |
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3 | #require <com/variant.ab>
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4 |
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5 | #ifndef _COM_CURRENCY_AB
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6 | #define _COM_CURRENCY_AB
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7 |
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8 | Class Currency
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9 | Public
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10 | /*
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11 | Sub Currency(x As CY)
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12 | cy = x
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13 | End Sub
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14 | */
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15 | Sub Currency(x As Double)
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16 | VarCyFromR8(x, cy)
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17 | End Sub
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18 | /*
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19 | Sub Currency(x As Int64)
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20 | VarCyFromI8(x, cy)
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21 | End Sub
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22 | */
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23 | Const Function Operator +() As Currency
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24 | Return New Currency(This)
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25 | End Function
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26 |
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27 | Const Function Operator -() As Currency
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28 | Dim ret = New Currency
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29 | VarCyNeg(This.cy, ret.cy)
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30 | Return ret
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31 | End Function
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32 |
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33 | Const Function Operator *(y As Currency) As Currency
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34 | Dim ret = New Currency
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35 | VarCyMul(This.cy, y.cy, ret.cy)
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36 | Return ret
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37 | End Function
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38 |
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39 | Const Function Operator *(y As Long) As Currency
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40 | Dim ret = New Currency
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41 | VarCyMulI4(This.cy, y, ret.cy)
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42 | Return ret
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43 | End Function
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44 |
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45 | Const Function Operator *(y As Int64) As Currency
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46 | Dim ret = New Currency
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47 | VarCyMulI8(This.cy, y, ret.cy)
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48 | Return ret
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49 | End Function
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50 |
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51 | Const Function Operator /(y As Variant) As Double
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52 | Dim vx = New Variant(This)
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53 | Dim ret= vx / y
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54 | Return ret.ValR4
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55 | End Function
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56 |
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57 | Const Function Operator /(y As Currency) As Double
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58 | Return This / New Varinat(y)
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59 | End Function
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60 |
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61 | Const Function Operator +(y As Currency) As Currency
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62 | Dim ret = New Currency
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63 | VarCyAdd(This.cy, y.cy, ret.cy)
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64 | Return ret
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65 | End Function
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66 |
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67 | Const Function Operator -(y As Currency) As Currency
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68 | Dim ret = New Currency
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69 | VarCySub(This.cy, y.cy, ret.cy)
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70 | Return ret
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71 | End Function
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72 |
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73 | Static Function Compare(x As Currency, y As Currency) As HRESULT
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74 | Return VarCyCmp(x, y)
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75 | End Function
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76 |
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77 | Static Function Compare(x As Currency, y As Double) As HRESULT
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78 | Return VarCyCmpR8(x, y)
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79 | End Function
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80 |
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81 | Static Function Compare(x As Double, y As Currency) As HRESULT
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82 | Dim ret = VarCyCmpR8(y, x)
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83 | Select Case ret
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84 | Case VARCMP_LT
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85 | Return VARCMP_GT
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86 | Case VARCMP_GT
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87 | Return VARCMP_LT
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88 | Case Else
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89 | Return ret
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90 | End Select
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91 | End Function
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92 |
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93 | Const Function Operator ==(y As Currency) As Boolean
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94 | Dim c = Compare(This, y)
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95 | Return c = VARCMP_EQ
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96 | End Function
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97 |
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98 | Const Function Operator ==(y As Double) As Boolean
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99 | Dim c = Compare(This, y)
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100 | Return c = VARCMP_EQ
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101 | End Function
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102 |
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103 | Const Function Operator <>(y As Currency) As Boolean
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104 | Dim c = Compare(This, y)
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105 | Return c <> VARCMP_EQ
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106 | End Function
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107 |
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108 | Const Function Operator <>(y As Double) As Boolean
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109 | Dim c = Compare(This, y)
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110 | Return c <> VARCMP_EQ
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111 | End Function
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112 |
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113 | Const Function Operator <(y As Currency) As Boolean
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114 | Dim c = Compare(This, y)
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115 | Return c = VARCMP_LT
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116 | End Function
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117 |
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118 | Const Function Operator <(y As Double) As Boolean
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119 | Dim c = Compare(This, y)
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120 | Return c = VARCMP_LT
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121 | End Function
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122 | /*
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123 | Const Function Operator >(y As Currency) As Boolean
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124 | Dim c = Compare(This, y)
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125 | Return c = VARCMP_GT
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126 | End Function
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127 |
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128 | Const Function Operator >(y As Double) As Boolean
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129 | Dim c = Compare(This, y)
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130 | Return c = VARCMP_GT
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131 | End Function
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132 | */
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133 | Const Function Operator <=(y As Currency) As Boolean
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134 | Dim c = Compare(This, y)
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135 | Return result = VARCMP_LT Or result = VARCMP_EQ
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136 | End Function
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137 |
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138 | Const Function Operator <=(y As Double) As Boolean
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139 | Dim c = Compare(This, y)
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140 | Return result = VARCMP_LT Or result = VARCMP_EQ
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141 | End Function
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142 |
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143 | Const Function Operator >=(y As Currency) As Boolean
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144 | Dim c = Compare(This, y)
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145 | Return result = VARCMP_GT Or result = VARCMP_EQ
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146 | End Function
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147 |
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148 | Const Function Operator >=(y As Double) As Boolean
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149 | Dim c = Compare(This, y)
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150 | Return result = VARCMP_GT Or result = VARCMP_EQ
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151 | End Function
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152 |
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153 | Const Function Abs() As Currency
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154 | Abs = New Currency
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155 | VarCyAbs(This.cy, Abs.cy)
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156 | End Function
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157 |
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158 | Const Function Fix() As Currency
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159 | Fix = New Currency
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160 | VarCyFix(This.cy, Fix.cy)
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161 | End Function
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162 |
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163 | Const Function Int() As Currency
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164 | Int = New Currency
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165 | VarCyInt(This.cy, Int.cy)
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166 | End Function
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167 |
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168 | Const Function Round(c = 0 As Long) As Currency
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169 | Round = New Currency
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170 | VarCyRound(This.cy, c, Round.cy)
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171 | End Function
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172 |
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173 | Const Function Cy() As CY
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174 | Return cy
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175 | End Function
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176 |
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177 | Sub Cy(c As CY)
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178 | cy = c
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179 | End Sub
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180 |
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181 | Const Function ToDouble() As Double
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182 | VarR8FromCy(cy, ToDouble)
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183 | End Function
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184 |
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185 | Const Function ToInt64() As Int64
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186 | VarI8FromCy(cy, ToInt64)
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187 | End Function
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188 |
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189 | Const Function ToVariant() As Variant
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190 | Return New Variant(This)
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191 | End Function
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192 |
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193 | Override Function ToString() As String
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194 | Dim bs As BSTR
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195 | VarBstrFromCy(cy, LOCALE_USER_DEFAULT, LOCALE_USE_NLS, bs)
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196 | ToString = New String(bs As PCWSTR, SysStringLen(bs) As Long)
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197 | SysFreeString(bs)
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198 | End Function
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199 |
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200 | Override Function GetHashCode() As Long
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201 | Return HIDWORD(cy) Xor LODWORD(cy)
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202 | End Function
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203 | Private
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204 | cy As CY
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205 | End Class
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206 |
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207 | #endif '_COM_CURRENCY_AB
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