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Imports System Imports System.Text Imports System.Runtime.InteropServices Imports System.Diagnostics Imports System.Drawing Imports System.IO Imports System.Windows.Forms Namespace Tools.Shortcut Public Class ShellShortcut Implements IDisposable Private Const INFOTIPSIZE As Integer = 1024 Private Const MAX_PATH As Integer = 260 Private Const SW_SHOWNORMAL As Integer = 1 Private Const SW_SHOWMINIMIZED As Integer = 2 Private Const SW_SHOWMAXIMIZED As Integer = 3 Private Const SW_SHOWMINNOACTIVE As Integer = 7 #If [UNICODE] Then Private m_Link As IShellLinkW #Else Private m_Link As IShellLinkA #End If Private m_sPath As String ' ' linkPath: Path to new or existing shortcut file (.lnk). ' Public Sub New(ByVal linkPath As String) Dim pf As IPersistFile Dim CLSID_ShellLink As Guid = New Guid("00021401-0000-0000-C000-000000000046") Dim tShellLink As Type ' Workaround for VB.NET compiler bug with ComImport classes '#If [UNICODE] Then ' m_Link = CType(New ShellLink(), IShellLinkW) '#Else ' m_Link = CType(New ShellLink(), IShellLinkA) '#End If tShellLink = Type.GetTypeFromCLSID(CLSID_ShellLink) #If [UNICODE] Then m_Link = CType(Activator.CreateInstance(tShellLink), IShellLinkW) #Else m_Link = CType(Activator.CreateInstance(tShellLink), IShellLinkA) #End If m_sPath = linkPath If File.Exists(linkPath) Then pf = CType(m_Link, IPersistFile) pf.Load(linkPath, 0) End If End Sub Public Sub Dispose() Implements IDisposable.Dispose If m_Link Is Nothing Then Exit Sub Marshal.ReleaseComObject(m_Link) m_Link = Nothing End Sub ' ' Gets or sets the argument list of the shortcut. ' Public Property Arguments() As String Get Dim sb As StringBuilder = New StringBuilder(INFOTIPSIZE) m_Link.GetArguments(sb, sb.Capacity) Return sb.ToString() End Get Set(ByVal Value As String) m_Link.SetArguments(Value) End Set End Property ' ' Gets or sets a description of the shortcut. ' Public Property Description() As String Get Dim sb As StringBuilder = New StringBuilder(INFOTIPSIZE) m_Link.GetDescription(sb, sb.Capacity) Return sb.ToString() End Get Set(ByVal Value As String) m_Link.SetDescription(Value) End Set End Property ' ' Gets or sets the working directory (aka start in directory) of the shortcut. ' Public Property WorkingDirectory() As String Get Dim sb As StringBuilder = New StringBuilder(MAX_PATH) m_Link.GetWorkingDirectory(sb, sb.Capacity) Return sb.ToString() End Get Set(ByVal Value As String) m_Link.SetWorkingDirectory(Value) End Set End Property ' ' If Path returns an empty string, the shortcut is associated with ' a PIDL instead, which can be retrieved with IShellLink.GetIDList(). ' This is beyond the scope of this wrapper class. ' ' Gets or sets the target path of the shortcut. ' Public Property Path() As String Get #If [UNICODE] Then Dim wfd As WIN32_FIND_DATAW #Else Dim wfd As WIN32_FIND_DATAA #End If Dim sb As StringBuilder = New StringBuilder(MAX_PATH) m_Link.GetPath(sb, sb.Capacity, wfd, SLGP_FLAGS.SLGP_UNCPRIORITY) Return sb.ToString() End Get Set(ByVal Value As String) m_Link.SetPath(Value) End Set End Property ' ' Gets or sets the path of the Icon assigned to the shortcut. ' Public Property IconPath() As String Get Dim sb As StringBuilder = New StringBuilder(MAX_PATH) Dim nIconIdx As Integer m_Link.GetIconLocation(sb, sb.Capacity, nIconIdx) Return sb.ToString() End Get Set(ByVal Value As String) m_Link.SetIconLocation(Value, IconIndex) End Set End Property ' ' Gets or sets the index of the Icon assigned to the shortcut. ' Set to zero when the IconPath property specifies a .ICO file. ' Public Property IconIndex() As Integer Get Dim sb As StringBuilder = New StringBuilder(MAX_PATH) Dim nIconIdx As Integer m_Link.GetIconLocation(sb, sb.Capacity, nIconIdx) Return nIconIdx End Get Set(ByVal Value As Integer) m_Link.SetIconLocation(IconPath, Value) End Set End Property ' ' Retrieves the Icon of the shortcut as it will appear in Explorer. ' Use the IconPath and IconIndex properties to change it. ' Public ReadOnly Property Icon() As Icon Get Dim sb As StringBuilder = New StringBuilder(MAX_PATH) Dim nIconIdx As Integer Dim hIcon, hInst As IntPtr Dim ico, clone As Icon m_Link.GetIconLocation(sb, sb.Capacity, nIconIdx) hInst = Marshal.GetHINSTANCE(Me.GetType().Module) hIcon = Native.ExtractIcon(hInst, sb.ToString(), nIconIdx) If hIcon.ToInt32() = 0 Then Return Nothing ' Return a cloned Icon, because we have to free the original ourself. ico = Icon.FromHandle(hIcon) clone = CType(ico.Clone(), Icon) ico.Dispose() Native.DestroyIcon(hIcon) Return clone End Get End Property ' ' Gets or sets the System.Diagnostics.ProcessWindowStyle value ' that decides the initial show state of the shortcut target. Note that ' ProcessWindowStyle.Hidden is not a valid property value. ' Public Property WindowStyle() As ProcessWindowStyle Get Dim nWS As Integer m_Link.GetShowCmd(nWS) Select Case nWS Case SW_SHOWMINIMIZED, SW_SHOWMINNOACTIVE Return ProcessWindowStyle.Minimized Case SW_SHOWMAXIMIZED Return ProcessWindowStyle.Maximized Case Else Return ProcessWindowStyle.Normal End Select End Get Set(ByVal Value As ProcessWindowStyle) Dim nWS As Integer Select Case Value Case ProcessWindowStyle.Normal nWS = SW_SHOWNORMAL Case ProcessWindowStyle.Minimized nWS = SW_SHOWMINNOACTIVE Case ProcessWindowStyle.Maximized nWS = SW_SHOWMAXIMIZED Case Else ' ProcessWindowStyle.Hidden Throw New ArgumentException("Unsupported ProcessWindowStyle value.") End Select m_Link.SetShowCmd(nWS) End Set End Property ' ' Gets or sets the hotkey for the shortcut. ' Public Property Hotkey() As Keys Get Dim wHotkey As Short Dim dwHotkey As Integer m_Link.GetHotkey(wHotkey) ' ' Convert from IShellLink 16-bit format to Keys enumeration 32-bit value ' IShellLink: &HMMVK ' Keys: &H00MM00VK ' MM = Modifier (Alt, Control, Shift) ' VK = Virtual key code ' dwHotkey = (wHotkey And &HFF00I) * &H100I Or (wHotkey And &HFFI) Return CType(dwHotkey, Keys) End Get Set(ByVal Value As Keys) Dim wHotkey As Short If (Value And Keys.Modifiers) = 0 Then Throw New ArgumentException("Hotkey must include a modifier key.") End If ' ' Convert from Keys enumeration 32-bit value to IShellLink 16-bit format ' IShellLink: &HMMVK ' Keys: &H00MM00VK ' MM = Modifier (Alt, Control, Shift) ' VK = Virtual key code ' wHotkey = CShort(CInt(Value And Keys.Modifiers) \ &H100) Or CShort(Value And Keys.KeyCode) m_Link.SetHotkey(wHotkey) End Set End Property ' ' Saves the shortcut to disk. ' Public Sub Save() Dim pf As IPersistFile = CType(m_Link, IPersistFile) pf.Save(m_sPath, True) End Sub ' ' Returns a reference to the internal ShellLink object, ' which can be used to perform more advanced operations ' not supported by this wrapper class, by using the ' IShellLink interface directly. ' Public ReadOnly Property ShellLink() As Object Get Return m_Link End Get End Property #Region "Native Win32 API functions" Private Class Native <DllImport("shell32.dll", CharSet:=CharSet.Auto)> _ Public Shared Function ExtractIcon(ByVal hInst As IntPtr, ByVal lpszExeFileName As String, ByVal nIconIndex As Integer) As IntPtr End Function <DllImport("user32.dll")> _ Public Shared Function DestroyIcon(ByVal hIcon As IntPtr) As Boolean End Function End Class #End Region End Class End Namespace ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ' ' Filename: ShellLinkNative.vb ' Author: Mattias Sjögren (mattias@mvps.org) ' http://www.msjogren.net/dotnet/ ' ' Description: Defines the native types used to manipulate shell shortcuts. ' ' Public types: Enum SLR_FLAGS ' Enum SLGP_FLAGS ' Structure WIN32_FIND_DATA[A|W] ' Interface IPersistFile ' Interface IShellLink[A|W] ' (Class ShellLink) ' ' ' Copyright ©2001-2002, Mattias Sjögren ' ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' Namespace Tools.Shortcut ' IShellLink.Resolve fFlags <Flags()> _ Public Enum SLR_FLAGS SLR_NO_UI = &H1 SLR_ANY_MATCH = &H2 SLR_UPDATE = &H4 SLR_NOUPDATE = &H8 SLR_NOSEARCH = &H10 SLR_NOTRACK = &H20 SLR_NOLINKINFO = &H40 SLR_INVOKE_MSI = &H80 End Enum ' IShellLink.GetPath fFlags <Flags()> _ Public Enum SLGP_FLAGS SLGP_SHORTPATH = &H1 SLGP_UNCPRIORITY = &H2 SLGP_RAWPATH = &H4 End Enum <StructLayoutAttribute(LayoutKind.Sequential, CharSet:=CharSet.Ansi)> Public Structure WIN32_FIND_DATAA Public dwFileAttributes As Integer Public ftCreationTime As FILETIME Public ftLastAccessTime As FILETIME Public ftLastWriteTime As FILETIME Public nFileSizeHigh As Integer Public nFileSizeLow As Integer Public dwReserved0 As Integer Public dwReserved1 As Integer <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=MAX_PATH)> Public cFileName As String <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=14)> Public cAlternateFileName As String Private Const MAX_PATH As Integer = 260 End Structure <StructLayoutAttribute(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> Public Structure WIN32_FIND_DATAW Public dwFileAttributes As Integer Public ftCreationTime As FILETIME Public ftLastAccessTime As FILETIME Public ftLastWriteTime As FILETIME Public nFileSizeHigh As Integer Public nFileSizeLow As Integer Public dwReserved0 As Integer Public dwReserved1 As Integer <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=MAX_PATH)> Public cFileName As String <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=14)> Public cAlternateFileName As String Private Const MAX_PATH As Integer = 260 End Structure < _ ComImport(), _ InterfaceType(ComInterfaceType.InterfaceIsIUnknown), _ Guid("0000010B-0000-0000-C000-000000000046") _ > _ Public Interface IPersistFile #Region "Methods inherited from IPersist" Sub GetClassID( _ <Out()> ByRef pClassID As Guid) #End Region <PreserveSig()> _ Function IsDirty() As Integer Sub Load( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszFileName As String, _ ByVal dwMode As Integer) Sub Save( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszFileName As String, _ <MarshalAs(UnmanagedType.Bool)> ByVal fRemember As Boolean) Sub SaveCompleted( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszFileName As String) Sub GetCurFile( _ ByRef ppszFileName As IntPtr) End Interface < _ ComImport(), _ InterfaceType(ComInterfaceType.InterfaceIsIUnknown), _ Guid("000214EE-0000-0000-C000-000000000046") _ > _ Public Interface IShellLinkA Sub GetPath( _ <Out(), MarshalAs(UnmanagedType.LPStr)> ByVal pszFile As StringBuilder, _ ByVal cchMaxPath As Integer, _ <Out()> ByRef pfd As WIN32_FIND_DATAA, _ ByVal fFlags As SLGP_FLAGS) Sub GetIDList( _ ByRef ppidl As IntPtr) Sub SetIDList( _ ByVal pidl As IntPtr) Sub GetDescription( _ <Out(), MarshalAs(UnmanagedType.LPStr)> ByVal pszName As StringBuilder, _ ByVal cchMaxName As Integer) Sub SetDescription( _ <MarshalAs(UnmanagedType.LPStr)> ByVal pszName As String) Sub GetWorkingDirectory( _ <Out(), MarshalAs(UnmanagedType.LPStr)> ByVal pszDir As StringBuilder, _ ByVal cchMaxPath As Integer) Sub SetWorkingDirectory( _ <MarshalAs(UnmanagedType.LPStr)> ByVal pszDir As String) Sub GetArguments( _ <Out(), MarshalAs(UnmanagedType.LPStr)> ByVal pszArgs As StringBuilder, _ ByVal cchMaxPath As Integer) Sub SetArguments( _ <MarshalAs(UnmanagedType.LPStr)> ByVal pszArgs As String) Sub GetHotkey( _ ByRef pwHotkey As Short) Sub SetHotkey( _ ByVal wHotkey As Short) Sub GetShowCmd( _ ByRef piShowCmd As Integer) Sub SetShowCmd( _ ByVal iShowCmd As Integer) Sub GetIconLocation( _ <Out(), MarshalAs(UnmanagedType.LPStr)> ByVal pszIconPath As StringBuilder, _ ByVal cchIconPath As Integer, _ ByRef piIcon As Integer) Sub SetIconLocation( _ <MarshalAs(UnmanagedType.LPStr)> ByVal pszIconPath As String, _ ByVal iIcon As Integer) Sub SetRelativePath( _ <MarshalAs(UnmanagedType.LPStr)> ByVal pszPathRel As String, _ ByVal dwReserved As Integer) Sub Resolve( _ ByVal hwnd As IntPtr, _ ByVal fFlags As SLR_FLAGS) Sub SetPath( _ <MarshalAs(UnmanagedType.LPStr)> ByVal pszFile As String) End Interface < _ ComImport(), _ InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown), _ Guid("000214F9-0000-0000-C000-000000000046") _ > _ Public Interface IShellLinkW Sub GetPath( _ <Out(), MarshalAs(UnmanagedType.LPWStr)> ByVal pszFile As StringBuilder, _ ByVal cchMaxPath As Integer, _ <Out()> ByRef pfd As WIN32_FIND_DATAW, _ ByVal fFlags As SLGP_FLAGS) Sub GetIDList( _ ByRef ppidl As IntPtr) Sub SetIDList( _ ByVal pidl As IntPtr) Sub GetDescription( _ <Out(), MarshalAs(UnmanagedType.LPWStr)> ByVal pszName As StringBuilder, _ ByVal cchMaxName As Integer) Sub SetDescription( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszName As String) Sub GetWorkingDirectory( _ <Out(), MarshalAs(UnmanagedType.LPWStr)> ByVal pszDir As StringBuilder, _ ByVal cchMaxPath As Integer) Sub SetWorkingDirectory( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszDir As String) Sub GetArguments( _ <Out(), MarshalAs(UnmanagedType.LPWStr)> ByVal pszArgs As StringBuilder, _ ByVal cchMaxPath As Integer) Sub SetArguments( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszArgs As String) Sub GetHotkey( _ ByRef pwHotkey As Short) Sub SetHotkey( _ ByVal wHotkey As Short) Sub GetShowCmd( _ ByRef piShowCmd As Integer) Sub SetShowCmd( _ ByVal iShowCmd As Integer) Sub GetIconLocation( _ <Out(), MarshalAs(UnmanagedType.LPWStr)> ByVal pszIconPath As StringBuilder, _ ByVal cchIconPath As Integer, _ ByRef piIcon As Integer) Sub SetIconLocation( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszIconPath As String, _ ByVal iIcon As Integer) Sub SetRelativePath( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszPathRel As String, _ ByVal dwReserved As Integer) Sub Resolve( _ ByVal hwnd As IntPtr, _ ByVal fFlags As SLR_FLAGS) Sub SetPath( _ <MarshalAs(UnmanagedType.LPWStr)> ByVal pszFile As String) End Interface ' The following does currently not compile correctly. Use ' Type.GetTypeFromCLSID() and Activator.CreateInstance() instead. ' '< _ ' ComImport(), _ ' Guid("00021401-0000-0000-C000-000000000046") _ '> _ 'Public Class ShellLink ' 'Implements IPersistFile ' 'Implements IShellLinkA ' 'Implements IShellLinkW 'End Class End Namespace |