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CompactPathToControl - Shorten a path by using ellipses

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<System.Runtime.InteropServices.DllImport("user32")> Shared Function _
  GetWindowDC(ByVal hWnd As Integer) As Integer
End Function

<System.Runtime.InteropServices.DllImport("shlwapi.dll")> Shared Function _
  PathCompactPath(ByVal hDC As Integer, _
  ByVal pathBuffer As System.Text.StringBuilder, _
  ByVal dx As Integer) As Boolean
End Function

' Shorten a path by using ellipses, if necessary, so that it fits inside a
' window
' If maxWidth=-1 or omitted, it uses the entire window's width
'
' Example:
'  Dim longPath As String = "D:\VB2TheMax\Examples\Routines\File1.vb"
'  Label1.Text = CompactPathToControl(longPath, Label1)

Function CompactPathToControl(ByVal longPath As String, ByVal ctl As Control, _
  Optional ByVal maxWidth As Long = -1) As String
  ' if 3rd argument is omitted, use the control's width
  If maxWidth < 0 Then maxWidth = ctl.Width
  ' compact the path
  Dim compPath As New System.Text.StringBuilder(longPath)
  PathCompactPath(GetWindowDC(ctl.Handle.ToInt32()), compPath, maxWidth)
  ' get the path by extracting it from the returned buffer
  Return compPath.ToString()
End Function


Submitted By : Nayan Patel  (Member Since : 5/26/2004 12:23:06 PM)

Job Description : He is the moderator of this site and currently working as an independent consultant. He works with VB.net/ASP.net, SQL Server and other MS technologies. He is MCSD.net, MCDBA and MCSE. In his free time he likes to watch funny movies and doing oil painting.
View all (893) submissions by this author  (Birth Date : 7/14/1981 )


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