C# Definition:
/// <summary>The IShellLink interface allows Shell links to be created, modified, and resolved</summary>
[ComImport(), InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("000214F9-0000-0000-C000-000000000046")]
interface IShellLinkW
{
/// <summary>Retrieves the path and file name of a Shell link object</summary>
void GetPath([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out UnsafeNativeMethods.WIN32_FIND_DATAW pfd, UnsafeNativeMethods.SLGP_FLAGS fFlags);
/// <summary>Retrieves the list of item identifiers for a Shell link object</summary>
void GetIDList(out IntPtr ppidl);
/// <summary>Sets the pointer to an item identifier list (PIDL) for a Shell link object.</summary>
void SetIDList(IntPtr pidl);
/// <summary>Retrieves the description string for a Shell link object</summary>
void GetDescription([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszName, int cchMaxName);
/// <summary>Sets the description for a Shell link object. The description can be any application-defined string</summary>
void SetDescription([MarshalAs(UnmanagedType.LPWStr)] string pszName);
/// <summary>Retrieves the name of the working directory for a Shell link object</summary>
void GetWorkingDirectory([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszDir, int cchMaxPath);
/// <summary>Sets the name of the working directory for a Shell link object</summary>
void SetWorkingDirectory([MarshalAs(UnmanagedType.LPWStr)] string pszDir);
/// <summary>Retrieves the command-line arguments associated with a Shell link object</summary>
void GetArguments([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszArgs, int cchMaxPath);
/// <summary>Sets the command-line arguments for a Shell link object</summary>
void SetArguments([MarshalAs(UnmanagedType.LPWStr)] string pszArgs);
/// <summary>Retrieves the hot key for a Shell link object</summary>
void GetHotkey(out short pwHotkey);
/// <summary>Sets a hot key for a Shell link object</summary>
void SetHotkey(short wHotkey);
/// <summary>Retrieves the show command for a Shell link object</summary>
void GetShowCmd(out int piShowCmd);
/// <summary>Sets the show command for a Shell link object. The show command sets the initial show state of the window.</summary>
void SetShowCmd(int iShowCmd);
/// <summary>Retrieves the location (path and index) of the icon for a Shell link object</summary>
void GetIconLocation([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszIconPath,
int cchIconPath, out int piIcon);
/// <summary>Sets the location (path and index) of the icon for a Shell link object</summary>
void SetIconLocation([MarshalAs(UnmanagedType.LPWStr)] string pszIconPath, int iIcon);
/// <summary>Sets the relative path to the Shell link object</summary>
void SetRelativePath([MarshalAs(UnmanagedType.LPWStr)] string pszPathRel, int dwReserved);
/// <summary>Attempts to find the target of a Shell link, even if it has been moved or renamed</summary>
void Resolve(IntPtr hwnd, UnsafeNativeMethods.SLR_FLAGS fFlags);
/// <summary>Sets the path and file name of a Shell link object</summary>
void SetPath([MarshalAs(UnmanagedType.LPWStr)] string pszFile);
}
VB Definition:
'''Caution: This code has not been tested yet, but it has been cross checked against the C# code above
<ComVisible(True), ComImport(), Guid("000214F9-0000-0000-C000-000000000046"), _
InterfaceType(ComInterfaceType.InterfaceIsIUnknown)> _
Public Interface IShellLinkW
''' <summary>Retrieves the path and file name of a Shell link object</summary>
<PreserveSig()> Function GetPath( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszFile As Text.StringBuilder, _
ByVal cch As Integer, _
ByRef pfd As WIN32_FIND_DATA, _
ByVal fFlags As Integer) As HRESULT
''' <summary>Retrieves the list of item identifiers for a Shell link object</summary>
<PreserveSig()> Function GetIDList(ByRef ppidl As IntPtr) As HRESULT
''' <summary>Sets the pointer to an item identifier list (PIDL) for a Shell link object.</summary>
<PreserveSig()> Function SetIDList(ByVal pidl As IntPtr) As HRESULT
''' <summary>Retrieves the description string for a Shell link object</summary>
<PreserveSig()> Function GetDescription( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszName As Text.StringBuilder, _
ByVal cch As Integer) As HRESULT
''' <summary>Sets the description for a Shell link object. The description can be any application-defined string</summary>
<PreserveSig()> Function SetDescription( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszName As String) As HRESULT
''' <summary>Retrieves the name of the working directory for a Shell link object</summary>
<PreserveSig()> Function GetWorkingDirectory( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszDir As Text.StringBuilder, _
ByVal cch As Integer) As HRESULT
''' <summary>Sets the name of the working directory for a Shell link object</summary>
<PreserveSig()> Function SetWorkingDirectory( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszDir As String) As HRESULT
''' <summary>Retrieves the command-line arguments associated with a Shell link object</summary>
<PreserveSig()> Function GetArguments( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszArgs As Text.StringBuilder, _
ByVal cch As Integer) As HRESULT
''' <summary>Sets the command-line arguments for a Shell link object</summary>
<PreserveSig()> Function SetArguments( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszArgs As String) As HRESULT
''' <summary>Retrieves the hot key for a Shell link object</summary>
<PreserveSig()> Function GetHotkey(ByRef pwHotkey As Short) As HRESULT
''' <summary>Sets a hot key for a Shell link object</summary>
<PreserveSig()> Function SetHotkey(ByVal wHotkey As Short) As HRESULT
''' <summary>Retrieves the show command for a Shell link object</summary>
<PreserveSig()> Function GetShowCmd(ByRef piShowCmd As Integer) As HRESULT
''' <summary>Sets the show command for a Shell link object. The show command sets the initial show state of the window.</summary>
<PreserveSig()> Function SetShowCmd(ByVal iShowCmd As Integer) As HRESULT
''' <summary>Retrieves the location (path and index) of the icon for a Shell link object</summary>
<PreserveSig()> Function GetIconLocation( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszIconPath As Text.StringBuilder, _
ByVal cch As Integer, _
ByRef piIcon As Integer) As HRESULT
''' <summary>Sets the location (path and index) of the icon for a Shell link object</summary>
<PreserveSig()> Function SetIconLocation( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszIconPath As String, _
ByVal iIcon As Integer) As HRESULT
''' <summary>Sets the relative path to the Shell link object</summary>
<PreserveSig()> Function SetRelativePath( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszPathRel As String, _
ByVal dwReserved As Integer) As HRESULT
''' <summary>Attempts to find the target of a Shell link, even if it has been moved or renamed</summary>
<PreserveSig()> Function Resolve(ByVal hwnd As IntPtr, ByVal fFlags As Integer) As HRESULT
''' <summary>Sets the path and file name of a Shell link object</summary>
<PreserveSig()> Function SetPath( _
<MarshalAs(UnmanagedType.LPWStr)> ByVal pszFile As String) As HRESULT
End Interface
User-Defined Types:
None.
Notes:
C# Instantiation code
Type obj = Type.GetTypeFromCLSID(new Guid("00021401-0000-0000-C000-000000000046"), true);
IShellLinkW lnk = Activator.CreateInstance(obj) as IShellLinkW;
C# .LNK creation code
lnk.SetPath("c:\\thefile.txt");
((IPersistFile)lnk).Save("c:\\thelink.LNK", true);
