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'in a module
Declare Function GetProp Lib "user32" Alias "GetPropA" (ByVal hwnd As Long, ByVal lpString As String) As Long
Declare Function SetProp Lib "user32" Alias "SetPropA" (ByVal hwnd As Long, ByVal lpString As String, ByVal hData As Long) As Long
Declare Function RemoveProp Lib "user32" Alias "RemovePropA" (ByVal hwnd As Long, ByVal lpString As String) As Long
Declare Function EnumProps Lib "user32" Alias "EnumPropsA" (ByVal hwnd As Long, ByVal lpEnumFunc As Long) As Long
Declare Function lstrlen Lib "kernel32" Alias "lstrlenA" (ByVal lpString As String) As Long
Declare Function lstrcpy Lib "kernel32" Alias "lstrcpyA" (ByVal lpString1 As String, ByVal lpString2 As Long) As Long
Function PropEnumProc(ByVal hwnd As Long, ByVal lpszString As Long, ByVal hData As Long) As Boolean
    Dim Buffer As String
    'create ab buffer
    Buffer = Space(lstrlen(lpszString) + 1)
    'copy the string to the buffer
    lstrcpy Buffer, lpszString
    'show the buffer
    Form1.Print Buffer
    'continue enumeration
    PropEnumProc = True
End Function
'in a form
Private Sub Form_Load()
    'KPD-Team 2000
    'URL: http://www.allapi.net/
    'E-Mail: KPDTeam@Allapi.net
    'set the form's graphic mode to persistent
    Me.AutoRedraw = True
    'create a new property and set its value to 123
    SetProp Me.hwnd, "TestProp", 123
    'retrieve the value and show it
    MsgBox "Property Value:" + Str(GetProp(Me.hwnd, "TestProp"))
    'begin the enumeration
    EnumProps Me.hwnd, AddressOf PropEnumProc
    'remove the property
    RemoveProp Me.hwnd, "TestProp"
End Sub


 
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