Copy a single list according to the criteria in another column vba excel

I want to use VBA to extract a unique, ordered list, subject to conditions in another column. So, I have two columns A, B.

A    B
========
a   FALSE
b   FALSE
c   TRUE
a   TRUE
b   FALSE
c   TRUE

Should result in a list

C
==
a
c

I'm very, very new to VBA, so any help would be appreciated.

Oh, and the second list will be updated with every change to the first, so needs to be wiped to ensure there are no leftovers, if, for example, the second "a" is set to FALSE.


What do you think of this? Add the MS Scripting library first.

Option Explicit

Sub Test()

Dim oRange As Range

Dim dict As Dictionary
Dim vArray As Variant
Dim vItem As Variant
Dim sKey As String
Dim sValue As String
Dim iCompare_TRUE As Integer

Dim lCnt As Long
Dim lCnt_Rows As Long

Set dict = New Dictionary

Set oRange = ThisWorkbook.Sheets(1).Range("A1:B6")

For lCnt = 1 To oRange.Rows.Count
    sKey = oRange(lCnt, 1)
    sValue = oRange(lCnt, 2)
    iCompare_TRUE = StrComp(sValue, "True")
    If Not dict.exists(sKey) And iCompare_TRUE = 0 Then
        With dict
            .Add sKey, sValue
        End With
    End If
Next lCnt

ReDim vArray(1 To dict.Count)
vArray = dict.Keys
lCnt_Rows = UBound(vArray) + 1

Set oRange = ThisWorkbook.Sheets(1).Range(Cells(1, 3), Cells(lCnt_Rows, 3))
oRange.Value = Application.Transpose(vArray)

End Sub