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SharpCompress Using TreeView & ListView Example

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7 Oct 2019MIT
This example shows how to use SharpCompress library with TreeView & ListView.

Introduction

In this example, I will show you how to get directories in TreeView and files in ListView from .rar or .zip files using SharpCompress.dll library.

For this example, I'm using SplitContainer, on the left side, I use TreeView, on the right side, I use ListView.

When you open a .rar or .zip file, all directories go in TreeView and when you select a directory from TreeView, all files goes in ListView if that directory contains files (like the example below).

Image Example.

Background

Probably this method can work with different library, I haven't tested it.

Using the Code

First import SharpCompress.dll into your project, and use Imports like the example below:

#Region " Imports "
 
Option Explicit On
Imports System.IO
Imports System.Runtime.InteropServices
Imports SharpCompress.Archives
Imports SharpCompress.Common

#End Region

In Form Class, declare this:

Public Class Form1 : Inherits Form

#Region " Declares "
 
    <System.Diagnostics.CodeAnalysis.SuppressMessage("Code Quality", _
       "IDE0069:Disposable fields should be disposed", Justification:="<Pending>")>
    Private WithEvents Archive As IArchive
    Private szArchivePath As String
    Private ReadOnly listViewItems As New List(Of ListViewItem)()
    Public listViewItem As ListViewItem
    Private ReadOnly _ImgListFileType As New List(Of String)() From {"Empty"}

#End Region

End Class

I create Sub Procedures to use the code easily. In form should look like this:

#Region " Imports "
 ption Explicit On
Imports System.IO
Imports System.Runtime.InteropServices
Imports SharpCompress.Archives
Imports SharpCompress.Common

#End Region

Public Class Form1 : Inherits Form

#Region " Declares "
 
    <System.Diagnostics.CodeAnalysis.SuppressMessage("Code Quality", _
      "IDE0069:Disposable fields should be disposed", Justification:="<Pending>")>
    Private WithEvents Archive As IArchive
    Private szArchivePath As String
    Private ReadOnly listViewItems As New List(Of ListViewItem)()
    Public listViewItem As ListViewItem
    Private ReadOnly _ImgListFileType As New List(Of String)() From {"Empty"}

#End Region

#Region " GetFileType "
    ''' <summary>
    ''' Collecting file extension and avoiding duplicate. Example: .exe, .txt, .jpg, etc.
    ''' </summary>
    ''' <param name="GetFrom"></param>
    ''' <param name="SearchIn"></param>
    Private Sub GetFileType(ByVal GetFrom As String, SearchIn As List(Of String))
        If Not SearchIn.Contains(GetFrom) Then
            SearchIn.Add(GetFrom)
            SearchIn.Remove(String.Empty)
        End If
    End Sub
#End Region

#Region " List Icons "
    ''' <summary>
    ''' List icons for each file type.
    ''' </summary>
    Private Sub ListIcons()
        'Getting each file type from list "_ImgListFileType" List(Of String)
        For Each iFound In _ImgListFileType
            If Not iFound = Nothing Then
                'Avoid duplication of images.
                If Not ImgLargeListView.Images.ContainsKey(iFound) Then
                    'To avoid "Cross-thread operation not valid" 
                    'when using Background Worker or some Thread.
                    'Adding images using GetIcon Module
                    If InvokeRequired Then
                        Invoke(Sub() ImgListView.Images.Add(iFound, GetFileIcon_
                                     (iFound, IconSize.SHGFI_SMALLICON)))
                        Invoke(Sub() ImgLargeListView.Images.Add(iFound, GetFileIcon_
                                     (iFound, IconSize.SHGFI_LARGEICON)))
                    Else
                        ImgListView.Images.Add(iFound, GetFileIcon_
                                              (iFound, IconSize.SHGFI_SMALLICON))
                        ImgLargeListView.Images.Add(iFound, GetFileIcon_
                                                   (iFound, IconSize.SHGFI_LARGEICON))
                    End If
                End If
            End If
        Next iFound
    End Sub
#End Region

#Region " Close Archive "
    ''' <summary>
    ''' Closing the archive.
    ''' </summary>
    Private Sub CloseArchive()
        If Not (Archive Is Nothing) Then
            Archive.Dispose()
        End If
    End Sub
#End Region

#Region " Fill TreeView "
    ''' <summary>
    ''' Fill TreeView Directories from archive.
    ''' </summary>
    ''' <param name="TreeViewEntryes"></param>
    Private Sub FillTreeView(ByVal TreeViewEntryes As TreeView)
        'Closing Archive.
        CloseArchive()
        'Clearing TreeView and ListView.
        TreeViewEntryes.Sort()
        TreeViewEntryes.Nodes.Clear()
        LstEntrys.Clear()

        Try
            Archive = ArchiveFactory.Open(szArchivePath)
            Dim _ImgListFolders As New List(Of Image)()
            'Path to folder icon.
            Dim folder As String = _
                Environment.GetFolderPath(Environment.SpecialFolder.Windows)
            'Adding folder icon to list.
            _ImgListFolders.Add(GetFolderIcon(folder, False))
            'Adding folder icon from list, using ImageList.
            ImgListTree.Images.AddRange(_ImgListFolders.ToArray())
            ImgListTree.Images.Add(GetFileIcon(Path.GetExtension(szArchivePath), _
                                   IconSize.SHGFI_SMALLICON))
            'Adding first node, with archive name.
            TreeViewEntryes.Nodes.Add(Path.GetFileName(szArchivePath))
            'Set image for first node.
            TreeViewEntryes.Nodes(0).ImageIndex = ImgListTree.Images.Count - 1
            TreeViewEntryes.Nodes(0).SelectedImageIndex = ImgListTree.Images.Count - 1

            'Getting all files from archive.
            For Each iEntry In Archive.Entries.Where(Function(e) Not e.IsDirectory)
                If Archive IsNot Nothing Then
                    'Collecting extension from archive and adding to a list.
                    GetFileType(Path.GetExtension(iEntry.Key), _ImgListFileType)
                End If
            Next iEntry

            ListIcons()

            For Each _Entry In Archive.Entries.Where(Function(e) e.IsDirectory)
                Dim nodes As TreeNodeCollection = TreeViewEntryes.Nodes(0).Nodes

                If Archive.Type = ArchiveType.Rar Then
                    TreeEntryes.PathSeparator = "\"
                    For Each PathSep As String In _Entry.Key.Split("\"c)
                        If Not nodes.ContainsKey(PathSep) Then
                            nodes.Add(PathSep, PathSep)
                        End If
                        nodes = nodes(PathSep).Nodes
                    Next PathSep

                ElseIf Archive.Type = ArchiveType.Zip Then
                    TreeEntryes.PathSeparator = "/"
                    For Each PathSep As String In _Entry.Key.TrimEnd("/").Split("/"c)
                        If Not nodes.ContainsKey(PathSep) Then
                            nodes.Add(PathSep, PathSep)
                        End If
                        nodes = nodes(PathSep).Nodes
                    Next PathSep
                End If

            Next _Entry
            TreeViewEntryes.Focus()
            TreeViewEntryes.Nodes(0).Expand()

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try

    End Sub

#End Region

#Region " Fill ListView"
    ''' <summary>
    ''' Fill ListView files from archive entries when TreeView node is selected.
    ''' </summary>
    ''' <param name="ListEntrys"></param>
    Private Sub FillListView(ByVal ListEntrys As ListView)
        ' ListView clearing
        ListEntrys.Items.Clear()
        listViewItems.Clear()

        'Getting all files from archive
        For Each Entry In Archive.Entries.Where(Function(D) Not D.IsDirectory)
            If Path.GetExtension(Entry.Key) = Nothing Then
                listViewItem = New ListViewItem(Path.GetFileName(Entry.Key), _
                               ImgLargeListView.Images.IndexOfKey("Empty"))
            Else
                listViewItem = New ListViewItem(Path.GetFileName(Entry.Key), _
                          ImgLargeListView.Images.IndexOfKey(Path.GetExtension(Entry.Key)))
            End If
            If TreeEntryes.Nodes(0).IsSelected Then
                If Entry.Key.StartsWith(Path.GetFileName(Entry.Key)) Then
                    listViewItems.Add(listViewItem)
                End If
            Else
                Dim szRarFullPathReplace As String = _
                          TreeEntryes.SelectedNode.FullPath.Replace_
                          (Path.GetFileName(szArchivePath), "").TrimStart("\")
                Dim szRarSelectedNode As String = Entry.Key.StartsWith_
                          (szRarFullPathReplace & "\" & Path.GetFileName(Entry.Key))

                Dim szZipFullPathReplace As String = _
                             TreeEntryes.SelectedNode.FullPath.Replace_
                             (Path.GetFileName(szArchivePath), "").TrimStart("/")
                Dim szZipSelectedNode As String = _
                             Entry.Key.StartsWith(szZipFullPathReplace & "/" & _
                             Path.GetFileName(Entry.Key))

                If szRarSelectedNode OrElse szZipSelectedNode Then
                    listViewItems.Add(listViewItem)
                End If
            End If
        Next Entry
        ListEntrys.Items.AddRange(listViewItems.ToArray())

    End Sub

#End Region 

End Class

On Button Click Event, I call _OpenRarDlg as New OpenFileDialog to open .rar or .zip file.

#Region " Button Open "
    Private Sub BtnOpen_Click(sender As Object, e As EventArgs) Handles BtnOpen.Click
        Dim _OpenRarDlg As New OpenFileDialog
        With _OpenRarDlg
            .DefaultExt = ".rar"
            .Filter = "Supported Files (*.rar, *.zip)|*.rar;*.zip"
        End With

        If _OpenRarDlg.ShowDialog = DialogResult.OK Then
            szArchivePath = _OpenRarDlg.FileName
            FillTreeView(TreeEntryes)
        End If

    End Sub
#End Region

On TreeView AfterSelect Event, I call FillListView(LstEntrys). When TreeView Node (Directory) is selected and if that directory contains files, then all files from selected directory will be displayed in ListView.

#Region " TreeView AfterSelect Event "
    Private Sub TreeEntryes_AfterSelect(sender As Object, e As TreeViewEventArgs) _
            Handles TreeEntryes.AfterSelect
        FillListView(LstEntrys)
    End Sub
#End Region 

On FormClosed Event, the archive should be closed.

#Region " On Form Closed Event "
    Protected Overrides Sub OnFormClosed(e As FormClosedEventArgs)
        MyBase.OnFormClosed(e)
        CloseArchive()
    End Sub
#End Region 

And now the Module. This Module is to get icons for each file type by extension, I decided to put this Module in Form Class because I don't want to create a new .vb file for this Module.

#Region " Get Icon Module"
 odule GetIcon
    Private Const MAX_PATH As Int32 = 260
    Private Const SHGFI_ICON As Int32 = &H100
    Private Const SHGFI_USEFILEATTRIBUTES As Int32 = &H10
    Private Const FILE_ATTRIBUTE_NORMAL As Int32 = &H80
    Private Const SHGFI_LARGEICON As Integer = &H0
    Private Const SHGFI_SMALLICON As Integer = &H1

    <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
    Private Structure SHFILEINFO
        Public hIcon As IntPtr
        Public iIcon As Integer
        Public dwAttributes As Integer
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=MAX_PATH)>
        Public szDisplayName As String
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=80)>
        Public szTypeName As String
    End Structure

    Public Enum IconSize
        SHGFI_LARGEICON = 0
        SHGFI_SMALLICON = 1
    End Enum

    <DllImport("shell32.dll", CharSet:=CharSet.Auto)>
    Private Function SHGetFileInfoW(<[In](), MarshalAs(UnmanagedType.LPTStr)> _
        ByVal pszPath As String, ByVal dwFileAttributes As Int32, _
        ByRef psfi As SHFILEINFO, ByVal cbFileInfo As Int32, ByVal uFlags As Int32) As IntPtr
    End Function

    <DllImport("user32.dll", SetLastError:=True)>
    Private Function DestroyIcon(ByVal hIcon As IntPtr) As Boolean
    End Function

    Public Function GetFileIcon(ByVal fileExt As String, _
        Optional ByVal ICOsize As IconSize = IconSize.SHGFI_LARGEICON) As Bitmap
        Dim shinfo As New SHFILEINFO
        shinfo.szDisplayName = New String(Chr(0), MAX_PATH)
        shinfo.szTypeName = New String(Chr(0), 80)
        SHGetFileInfoW(fileExt, FILE_ATTRIBUTE_NORMAL, shinfo, _
           Marshal.SizeOf(shinfo), SHGFI_ICON Or ICOsize Or SHGFI_USEFILEATTRIBUTES)
        Dim bmp As Bitmap = Icon.FromHandle(shinfo.hIcon).ToBitmap
        DestroyIcon(shinfo.hIcon) ' must destroy icon to avoid GDI leak!
        Return bmp ' return icon as a bitmap
    End Function

    Public Function GetFolderIcon_
        (ByVal PathName As String, ByVal LargeIco As Boolean) As Bitmap
        Dim fi As New SHFILEINFO
        If LargeIco Then
            SHGetFileInfoW(PathName, 0, fi, Marshal.SizeOf(fi), SHGFI_ICON Or SHGFI_LARGEICON)
        Else
            SHGetFileInfoW(PathName, 0, fi, Marshal.SizeOf(fi), SHGFI_ICON Or SHGFI_SMALLICON)
        End If
        Dim bm As Bitmap = Icon.FromHandle(fi.hIcon).ToBitmap
        DestroyIcon(fi.hIcon)
        Return bm
    End Function

End Module

#End Region

The all Form code looks like this:

#Region " Imports "
 ption Explicit On
Imports System.IO
Imports System.Runtime.InteropServices
Imports SharpCompress.Archives
Imports SharpCompress.Common

#End Region

Public Class Form1 : Inherits Form

#Region " Declares "
 
    <System.Diagnostics.CodeAnalysis.SuppressMessage("Code Quality", _
        "IDE0069:Disposable fields should be disposed", Justification:="<Pending>")>
    Private WithEvents Archive As IArchive
    Private szArchivePath As String
    Private ReadOnly listViewItems As New List(Of ListViewItem)()
    Public listViewItem As ListViewItem
    Private ReadOnly _ImgListFileType As New List(Of String)() From {"Empty"}

#End Region

#Region " GetFileType "
    ''' <summary>
    ''' Collecting file extension and avoiding duplicate. Example: .exe, .txt, .jpg, etc.
    ''' </summary>
    ''' <param name="GetFrom"></param>
    ''' <param name="SearchIn"></param>
    Private Sub GetFileType(ByVal GetFrom As String, SearchIn As List(Of String))
        If Not SearchIn.Contains(GetFrom) Then
            SearchIn.Add(GetFrom)
            SearchIn.Remove(String.Empty)
        End If
    End Sub
#End Region

#Region " List Icons "
    ''' <summary>
    ''' List icons for each file type.
    ''' </summary>
    Private Sub ListIcons()
        'Getting each file type from list "_ImgListFileType" List(Of String)
        For Each iFound In _ImgListFileType
            If Not iFound = Nothing Then
                'Avoid duplication of images.
                If Not ImgLargeListView.Images.ContainsKey(iFound) Then
                    'To avoid "Cross-thread operation not valid" 
                    'when using Background Worker or some Thread.
                    'Adding images using GetIcon Module
                    If InvokeRequired Then
                        Invoke(Sub() ImgListView.Images.Add(iFound, _
                               GetFileIcon(iFound, IconSize.SHGFI_SMALLICON)))
                        Invoke(Sub() ImgLargeListView.Images.Add(iFound, _
                               GetFileIcon(iFound, IconSize.SHGFI_LARGEICON)))
                    Else
                        ImgListView.Images.Add(iFound, _
                               GetFileIcon(iFound, IconSize.SHGFI_SMALLICON))
                        ImgLargeListView.Images.Add(iFound, _
                               GetFileIcon(iFound, IconSize.SHGFI_LARGEICON))
                    End If
                End If
            End If
        Next iFound
    End Sub
#End Region

#Region " Close Archive "
    ''' <summary>
    ''' Closing the archive.
    ''' </summary>
    Private Sub CloseArchive()
        If Not (Archive Is Nothing) Then
            Archive.Dispose()
        End If
    End Sub
#End Region

#Region " Fill TreeView "
    ''' <summary>
    ''' Fill TreeView Directories from archive.
    ''' </summary>
    ''' <param name="TreeViewEntryes"></param>
    Private Sub FillTreeView(ByVal TreeViewEntryes As TreeView)
        'Closing Archive.
        CloseArchive()
        'Clearing TreeView and ListView.
        TreeViewEntryes.Sort()
        TreeViewEntryes.Nodes.Clear()
        LstEntrys.Clear()

        Try
            Archive = ArchiveFactory.Open(szArchivePath)
            Dim _ImgListFolders As New List(Of Image)()
            'Path to folder icon.
            Dim folder As String = _
                   Environment.GetFolderPath(Environment.SpecialFolder.Windows)
            'Adding folder icon to list.
            _ImgListFolders.Add(GetFolderIcon(folder, False))
            'Adding folder icon from list, using ImageList.
            ImgListTree.Images.AddRange(_ImgListFolders.ToArray())
            ImgListTree.Images.Add(GetFileIcon(Path.GetExtension(szArchivePath), _
                                   IconSize.SHGFI_SMALLICON))
            'Adding first node, with archive name.
            TreeViewEntryes.Nodes.Add(Path.GetFileName(szArchivePath))
            'Set image for first node.
            TreeViewEntryes.Nodes(0).ImageIndex = ImgListTree.Images.Count - 1
            TreeViewEntryes.Nodes(0).SelectedImageIndex = ImgListTree.Images.Count - 1

            'Getting all files from archive.
            For Each iEntry In Archive.Entries.Where(Function(e) Not e.IsDirectory)
                If Archive IsNot Nothing Then
                    'Collecting extension from archive and adding to a list.
                    GetFileType(Path.GetExtension(iEntry.Key), _ImgListFileType)
                End If
            Next iEntry

            ListIcons()

            For Each _Entry In Archive.Entries.Where(Function(e) e.IsDirectory)
                Dim nodes As TreeNodeCollection = TreeViewEntryes.Nodes(0).Nodes

                If Archive.Type = ArchiveType.Rar Then
                    TreeEntryes.PathSeparator = "\"
                    For Each PathSep As String In _Entry.Key.Split("\"c)
                        If Not nodes.ContainsKey(PathSep) Then
                            nodes.Add(PathSep, PathSep)
                        End If
                        nodes = nodes(PathSep).Nodes
                    Next PathSep

                ElseIf Archive.Type = ArchiveType.Zip Then
                    TreeEntryes.PathSeparator = "/"
                    For Each PathSep As String In _Entry.Key.TrimEnd("/").Split("/"c)
                        If Not nodes.ContainsKey(PathSep) Then
                            nodes.Add(PathSep, PathSep)
                        End If
                        nodes = nodes(PathSep).Nodes
                    Next PathSep
                End If

            Next _Entry
            TreeViewEntryes.Focus()
            TreeViewEntryes.Nodes(0).Expand()

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try

    End Sub

#End Region

#Region " Fill ListView"
    ''' <summary>
    ''' Fill ListView files from archive entries when TreeView node is selected.
    ''' </summary>
    ''' <param name="ListEntrys"></param>
    Private Sub FillListView(ByVal ListEntrys As ListView)
        ' ListView clearing
        ListEntrys.Items.Clear()
        listViewItems.Clear()

        'Getting all files from archive
        For Each Entry In Archive.Entries.Where(Function(D) Not D.IsDirectory)
            If Path.GetExtension(Entry.Key) = Nothing Then
                listViewItem = New ListViewItem(Path.GetFileName(Entry.Key), _
                               ImgLargeListView.Images.IndexOfKey("Empty"))
            Else
                listViewItem = New ListViewItem(Path.GetFileName(Entry.Key), _
                    ImgLargeListView.Images.IndexOfKey(Path.GetExtension(Entry.Key)))
            End If
            If TreeEntryes.Nodes(0).IsSelected Then
                If Entry.Key.StartsWith(Path.GetFileName(Entry.Key)) Then
                    listViewItems.Add(listViewItem)
                End If
            Else
                Dim szRarFullPathReplace As String = _
                        TreeEntryes.SelectedNode.FullPath.Replace_
                        (Path.GetFileName(szArchivePath), "").TrimStart("\")
                Dim szRarSelectedNode As String = _
                        Entry.Key.StartsWith(szRarFullPathReplace & "\" & _
                        Path.GetFileName(Entry.Key))

                Dim szZipFullPathReplace As String = _
                        TreeEntryes.SelectedNode.FullPath.Replace_
                        (Path.GetFileName(szArchivePath), "").TrimStart("/")
                Dim szZipSelectedNode As String = _
                        Entry.Key.StartsWith(szZipFullPathReplace & "/" & _
                        Path.GetFileName(Entry.Key))

                If szRarSelectedNode OrElse szZipSelectedNode Then
                    listViewItems.Add(listViewItem)
                End If
            End If
        Next Entry
        ListEntrys.Items.AddRange(listViewItems.ToArray())

    End Sub

#End Region

#Region " Button Open "
    Private Sub BtnOpen_Click(sender As Object, e As EventArgs) Handles BtnOpen.Click
        Dim _OpenRarDlg As New OpenFileDialog
        With _OpenRarDlg
            .DefaultExt = ".rar"
            .Filter = "Supported Files (*.rar, *.zip)|*.rar;*.zip"
        End With

        If _OpenRarDlg.ShowDialog = DialogResult.OK Then
            szArchivePath = _OpenRarDlg.FileName
            FillTreeView(TreeEntryes)
        End If

    End Sub
#End Region

#Region " TreeView AfterSelect Event "
    Private Sub TreeEntryes_AfterSelect(sender As Object, e As TreeViewEventArgs) _
            Handles TreeEntryes.AfterSelect
        FillListView(LstEntrys)
    End Sub
#End Region

#Region " On Form Closed Event "
    Protected Overrides Sub OnFormClosed(e As FormClosedEventArgs)
        MyBase.OnFormClosed(e)
        CloseArchive()
    End Sub
#End Region

End Class

#Region " Get Icon Module"
 odule GetIcon
    Private Const MAX_PATH As Int32 = 260
    Private Const SHGFI_ICON As Int32 = &H100
    Private Const SHGFI_USEFILEATTRIBUTES As Int32 = &H10
    Private Const FILE_ATTRIBUTE_NORMAL As Int32 = &H80
    Private Const SHGFI_LARGEICON As Integer = &H0
    Private Const SHGFI_SMALLICON As Integer = &H1

    <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
    Private Structure SHFILEINFO
        Public hIcon As IntPtr
        Public iIcon As Integer
        Public dwAttributes As Integer
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=MAX_PATH)>
        Public szDisplayName As String
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=80)>
        Public szTypeName As String
    End Structure

    Public Enum IconSize
        SHGFI_LARGEICON = 0
        SHGFI_SMALLICON = 1
    End Enum

    <DllImport("shell32.dll", CharSet:=CharSet.Auto)>
    Private Function SHGetFileInfoW(<[In](), MarshalAs(UnmanagedType.LPTStr)> _
       ByVal pszPath As String, ByVal dwFileAttributes As Int32, _
       ByRef psfi As SHFILEINFO, ByVal cbFileInfo As Int32, ByVal uFlags As Int32) As IntPtr
    End Function

    <DllImport("user32.dll", SetLastError:=True)>
    Private Function DestroyIcon(ByVal hIcon As IntPtr) As Boolean
    End Function

    Public Function GetFileIcon(ByVal fileExt As String, _
        Optional ByVal ICOsize As IconSize = IconSize.SHGFI_LARGEICON) As Bitmap
        Dim shinfo As New SHFILEINFO
        shinfo.szDisplayName = New String(Chr(0), MAX_PATH)
        shinfo.szTypeName = New String(Chr(0), 80)
        SHGetFileInfoW(fileExt, FILE_ATTRIBUTE_NORMAL, shinfo, _
           Marshal.SizeOf(shinfo), SHGFI_ICON Or ICOsize Or SHGFI_USEFILEATTRIBUTES)
        Dim bmp As Bitmap = Icon.FromHandle(shinfo.hIcon).ToBitmap
        DestroyIcon(shinfo.hIcon) ' must destroy icon to avoid GDI leak!
        Return bmp ' return icon as a bitmap
    End Function

    Public Function GetFolderIcon(ByVal PathName As String, _
              ByVal LargeIco As Boolean) As Bitmap
        Dim fi As New SHFILEINFO
        If LargeIco Then
            SHGetFileInfoW(PathName, 0, fi, _
                Marshal.SizeOf(fi), SHGFI_ICON Or SHGFI_LARGEICON)
        Else
            SHGetFileInfoW(PathName, 0, fi, _
                Marshal.SizeOf(fi), SHGFI_ICON Or SHGFI_SMALLICON)
        End If
        Dim bm As Bitmap = Icon.FromHandle(fi.hIcon).ToBitmap
        DestroyIcon(fi.hIcon)
        Return bm
    End Function

End Module

#End Region

History

  • 6th October, 2019: Initial version

License

This article, along with any associated source code and files, is licensed under The MIT License

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About the Author

Florin Pănescu
Romania Romania
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Posted 7 Oct 2019

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