/// <summary>
/// Returns the desktop relative pIDL of a special folder
/// </summary>
/// <param name="desktopIShellFolder">The IShellFolder instance of the Desktop</param>
/// <param name="csidl">The CSIDL of the special folder</param>
/// <returns>the desktop relative pIDL of a special folder</returns>
public static IntPtr initSpecialPIDL(Object desktopIShellFolder, int csidl)
{
IntPtr result = new IntPtr();
ShellApi.SHGetSpecialFolderLocation(IntPtr.Zero, (ShellApi.CSIDL)csidl, ref result);
return(result);
}
private void BecomeComputerBrowser()
{
_uiFlags += BrowseFlags.BIF_BROWSEFORCOMPUTER;
Description = "Select a computer:";
ShellApi.SHGetSpecialFolderLocation(IntPtr.Zero, ShellApi.CSIDL.CSIDL_NETWORK, ref this._rootFolderLocation);
ShowNewFolderButton = false;
ShowEditBox = false;
}
/// <summary>
/// Returns the pIDL of the desktop itself
/// </summary>
public static IntPtr initDesktopPIDL()
{
IntPtr pidl = new IntPtr();
// get the root shell folder
ShellApi.SHGetSpecialFolderLocation(IntPtr.Zero, ShellApi.CSIDL.CSIDL_DESKTOP, ref pidl);
return(pidl);
}
public static String getFileSystemPath(int csidl)
{
IntPtr pIDL = new IntPtr();
int hRes = ShellApi.SHGetSpecialFolderLocation(IntPtr.Zero, (ShellApi.CSIDL)csidl, ref pIDL);
if (hRes != 0)
{
//throw Marshal.ThrowExceptionForHR(hRes);
// TODO exception for hRes
return(null);
}
StringBuilder builder = new StringBuilder(1024);
if (ShellApi.SHGetPathFromIDList(pIDL, builder))
{
return(builder.ToString());
}
else
{
return(null);
}
}
protected override bool RunDialog(IntPtr hWndOwner)
{
bool result = false;
if (_rootFolderLocation == IntPtr.Zero)
{
ShellApi.SHGetSpecialFolderLocation(hWndOwner, (ShellApi.CSIDL) this._rootFolder, ref _rootFolderLocation);
if (_rootFolderLocation == IntPtr.Zero)
{
ShellApi.SHGetSpecialFolderLocation(hWndOwner, 0, ref _rootFolderLocation);
if (_rootFolderLocation == IntPtr.Zero)
{
throw new InvalidOperationException("FolderBrowserDialogNoRootFolder");
}
}
}
_hwndEdit = IntPtr.Zero;
//_uiFlags = 0;
if (_dontIncludeNetworkFoldersBelowDomainLevel)
{
_uiFlags += BrowseFlags.BIF_DONTGOBELOWDOMAIN;
}
if (this._newStyle)
{
_uiFlags += BrowseFlags.BIF_NEWDIALOGSTYLE;
}
if (!this._showNewFolderButton)
{
_uiFlags += BrowseFlags.BIF_NONEWFOLDERBUTTON;
}
if (this._showEditBox)
{
_uiFlags += BrowseFlags.BIF_EDITBOX;
}
if (this._showBothFilesAndFolders)
{
_uiFlags += BrowseFlags.BIF_BROWSEINCLUDEFILES;
}
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
{
throw new ThreadStateException("DebuggingException: ThreadMustBeSTA");
}
IntPtr pidl = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
try
{
ShellApi.BROWSEINFO browseInfo = new ShellApi.BROWSEINFO();
hglobal = Marshal.AllocHGlobal(MAX_PATH * Marshal.SystemDefaultCharSize);
this._callback = new ShellApi.BrowseCallbackProc(this.FolderBrowserCallback);
browseInfo.pidlRoot = _rootFolderLocation;
browseInfo.hwndOwner = hWndOwner;
browseInfo.pszDisplayName = hglobal;
browseInfo.lpszTitle = this._descriptionText;
browseInfo.ulFlags = _uiFlags;
browseInfo.lpfn = this._callback;
browseInfo.lParam = IntPtr.Zero;
browseInfo.iImage = 0;
pidl = ShellApi.SHBrowseForFolder(ref browseInfo);
if (((_uiFlags & BrowseFlags.BIF_BROWSEFORPRINTER) == BrowseFlags.BIF_BROWSEFORPRINTER) ||
((_uiFlags & BrowseFlags.BIF_BROWSEFORCOMPUTER) == BrowseFlags.BIF_BROWSEFORCOMPUTER))
{
this._selectedPath = Marshal.PtrToStringAuto(browseInfo.pszDisplayName);
result = true;
}
else
{
if (pidl != IntPtr.Zero)
{
StringBuilder pszPath = new StringBuilder(MAX_PATH);
ShellApi.SHGetPathFromIDList(pidl, pszPath);
this._selectedPathNeedsCheck = true;
this._selectedPath = pszPath.ToString();
result = true;
}
}
}
finally
{
ShellApi.IMalloc sHMalloc = GetSHMalloc();
sHMalloc.Free(_rootFolderLocation);
_rootFolderLocation = IntPtr.Zero;
if (pidl != IntPtr.Zero)
{
sHMalloc.Free(pidl);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this._callback = null;
}
return(result);
}