public static void RegisterAsVirtualFolder(string extension, Guid shellFolderClassId)
{
if (extension == null)
{
throw new ArgumentNullException(nameof(extension));
}
const string classes = @"Software\Classes";
string progid = null;
using (var key = WindowsUtilities.EnsureSubKey(Registry.CurrentUser, Path.Combine(classes, extension)))
{
progid = (string)key.GetValue(null);
if (string.IsNullOrWhiteSpace(progid))
{
progid = typeof(Program).Namespace;
key.SetValue(null, progid);
}
}
using (var key = WindowsUtilities.EnsureSubKey(Registry.CurrentUser, Path.Combine(classes, progid, "CLSID")))
{
SetStringKeyWithBackup(key, null, shellFolderClassId.ToString("B"));
}
using (var key = WindowsUtilities.EnsureSubKey(Registry.CurrentUser, Path.Combine(classes, progid, "shell", "open", "command")))
{
SetStringKeyWithBackup(key, null, @"%SystemRoot%\explorer.exe /idlist,%I,%L");
// this is CLSID_ExecuteFolder from shobjidl.h
var CLSID_ExecuteFolder = new Guid("11dbb47c-a525-400b-9e80-a54615a090c0");
SetStringKeyWithBackup(key, "DelegateExecute", CLSID_ExecuteFolder.ToString("B"));
}
}
// https://stackoverflow.com/questions/23777688/pin-a-folder-to-navigation-pane-in-windows-explorer/34737590
// register as a cloud provider in explorer tree view
public static void RegisterCloudStorageProvider(string folderPath, string displayName, Guid id, string iconPath = null, int sortOrderIndex = 30)
{
if (folderPath == null)
{
throw new ArgumentNullException(nameof(folderPath));
}
if (displayName == null)
{
throw new ArgumentNullException(nameof(displayName));
}
if (id == Guid.Empty)
{
throw new ArgumentException(null, nameof(id));
}
using (var key = WindowsUtilities.EnsureSubKey(Registry.CurrentUser, Path.Combine(@"Software\Classes\CLSID", id.ToString("B"))))
{
key.SetValue(null, displayName);
key.SetValue("System.IsPinnedToNameSpaceTree", 1);
key.SetValue("SortOrderIndex", sortOrderIndex);
using (var icon = WindowsUtilities.EnsureSubKey(key, "DefaultIcon"))
{
var path = iconPath.Nullify() ?? NativeProxy.Default.DllPath;
icon.SetValue(null, path);
}
using (var server = WindowsUtilities.EnsureSubKey(key, "InProcServer32"))
{
server.SetValue(null, @"%systemroot%\system32\shell32.dll");
}
using (var folder = WindowsUtilities.EnsureSubKey(key, "ShellFolder"))
{
var attributes = SFGAO.SFGAO_HASSUBFOLDER |
SFGAO.SFGAO_CANCOPY |
SFGAO.SFGAO_CANLINK |
SFGAO.SFGAO_STORAGE |
SFGAO.SFGAO_HASPROPSHEET |
SFGAO.SFGAO_STORAGEANCESTOR |
SFGAO.SFGAO_FILESYSANCESTOR |
SFGAO.SFGAO_FOLDER |
SFGAO.SFGAO_FILESYSTEM;
folder.SetValue("Attributes", (int)attributes);
folder.SetValue("FolderValueFlags", 0x28);
}
using (var instance = WindowsUtilities.EnsureSubKey(key, "Instance"))
{
var CLSID_FileFolderBoth = new Guid("{0E5AAE11-A475-4C5b-AB00-C66DE400274E}");
instance.SetValue("CLSID", CLSID_FileFolderBoth.ToString("B"));
using (var bag = WindowsUtilities.EnsureSubKey(instance, "InitPropertyBag"))
{
bag.SetValue("Attributes", 0x11);
bag.SetValue("TargetFolderPath", folderPath);
}
}
}
using (var key = WindowsUtilities.EnsureSubKey(Registry.CurrentUser, Path.Combine(@"Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace", id.ToString("B"))))
{
key.SetValue(null, displayName);
}
using (var key = WindowsUtilities.EnsureSubKey(Registry.CurrentUser, @"Software\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons\NewStartPanel"))
{
key.SetValue(id.ToString("B"), 1);
}
}