Question : File Copying through CopyFileEx of kernel32.dll in vb.net

I am trying to copy files in vb.net through a kernel32.dll Function CopyFileEx, because I want to show progress of File Copying and also Cancellation of Copy process. I copied the code from http://www.codenotes.com/do/articles/article?articleID=528 this code starts copying file but then it hangs up and no progress is shown, neither file is coppied. If any one know the solution to the problem then please let me know.

Answer : File Copying through CopyFileEx of kernel32.dll in vb.net

This code will copy files showing the progress. You can use wild cards here

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "
#End Region

    Private Structure SHFILEOPSTRUCT
        Dim hWnd As Integer
        Dim wFunc As Integer
        Dim pFrom As String
        Dim pTo As String
        Dim fFlags As Short
        Dim fAborted As Boolean
        Dim hNameMaps As Integer
        Dim sProgress As String
    End Structure

    Private Const FO_DELETE As Short = &H3S
    Private Const FO_COPY As Short = &H2S
    Private Const FO_MOVE As Short = &H1S
    Private Const FO_RENAME As Short = &H4S
    Private Const FOF_ALLOWUNDO As Short = &H40S
    Private Declare Function SHFileOperation Lib "shell32.dll" Alias "SHFileOperationA" _
    (ByRef lpFileOp As SHFILEOPSTRUCT) As Integer

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim SHFileOp As SHFILEOPSTRUCT

        With SHFileOp
            .pFrom = "c:\a\*.mdb"
            .pTo = "c:\temp\download"
            .wFunc = FO_COPY
        End With
        'perform file operation
        SHFileOperation(SHFileOp)
        MsgBox("The Folder '" & SHFileOp.pFrom & "' has been Copied To : " & SHFileOp.pTo, MsgBoxStyle.Information + MsgBoxStyle.OKOnly, System.Reflection.Assembly.GetExecutingAssembly.GetName.Name)
    End Sub
End Class