private static void EnumMenuItems(
Shell32.IContextMenu cMenu,
HMENU hMenu,
List <Win32ContextMenuItem> menuItemsResult,
Func <string, bool> itemFilter = null)
{
var itemCount = User32.GetMenuItemCount(hMenu);
var mii = new User32.MENUITEMINFO();
mii.cbSize = (uint)Marshal.SizeOf(mii);
mii.fMask = User32.MenuItemInfoMask.MIIM_BITMAP
| User32.MenuItemInfoMask.MIIM_FTYPE
| User32.MenuItemInfoMask.MIIM_STRING
| User32.MenuItemInfoMask.MIIM_ID
| User32.MenuItemInfoMask.MIIM_SUBMENU;
for (uint ii = 0; ii < itemCount; ii++)
{
var menuItem = new ContextMenuItem();
var container = new SafeCoTaskMemString(512);
mii.dwTypeData = (IntPtr)container;
mii.cch = (uint)container.Capacity - 1; // https://devblogs.microsoft.com/oldnewthing/20040928-00/?p=37723
var retval = User32.GetMenuItemInfo(hMenu, ii, true, ref mii);
if (!retval)
{
container.Dispose();
continue;
}
menuItem.Type = (MenuItemType)mii.fType;
menuItem.ID = (int)(mii.wID - 1); // wID - idCmdFirst
if (menuItem.Type == MenuItemType.MFT_STRING)
{
Debug.WriteLine("Item {0} ({1}): {2}", ii, mii.wID, mii.dwTypeData);
menuItem.Label = mii.dwTypeData;
menuItem.CommandString = GetCommandString(cMenu, mii.wID - 1);
if (itemFilter != null && (itemFilter(menuItem.CommandString) || itemFilter(menuItem.Label)))
{
// Skip items implemented in UWP
container.Dispose();
continue;
}
if (mii.hbmpItem != HBITMAP.NULL && !Enum.IsDefined(typeof(HBITMAP_HMENU), ((IntPtr)mii.hbmpItem).ToInt64()))
{
var bitmap = GetBitmapFromHBitmap(mii.hbmpItem);
if (bitmap != null)
{
menuItem.Icon = bitmap;
}
}
if (mii.hSubMenu != HMENU.NULL)
{
Debug.WriteLine("Item {0}: has submenu", ii);
var subItems = new List <Win32ContextMenuItem>();
try
{
(cMenu as Shell32.IContextMenu2)?.HandleMenuMsg((uint)User32.WindowMessage.WM_INITMENUPOPUP, (IntPtr)mii.hSubMenu, new IntPtr(ii));
}
catch (NotImplementedException)
{
// Only for dynamic/owner drawn? (open with, etc)
}
EnumMenuItems(cMenu, mii.hSubMenu, subItems, itemFilter);
menuItem.SubItems = subItems;
Debug.WriteLine("Item {0}: done submenu", ii);
}
}
else
{
Debug.WriteLine("Item {0}: {1}", ii, mii.fType.ToString());
}
container.Dispose();
menuItemsResult.Add(menuItem);
}
}
private static ContextMenuPackage[] FetchContextMenuCore(Shell32.IContextMenu Context, HMENU Menu, string[] RelatedPath, bool IncludeExtensionItem)
{
int MenuItemNum = User32.GetMenuItemCount(Menu);
List <ContextMenuPackage> MenuItems = new List <ContextMenuPackage>(MenuItemNum);
for (uint i = 0; i < MenuItemNum; i++)
{
IntPtr DataHandle = Marshal.AllocCoTaskMem(BufferSize);
try
{
User32.MENUITEMINFO Info = new User32.MENUITEMINFO
{
cbSize = Convert.ToUInt32(Marshal.SizeOf(typeof(User32.MENUITEMINFO))),
fMask = User32.MenuItemInfoMask.MIIM_ID | User32.MenuItemInfoMask.MIIM_SUBMENU | User32.MenuItemInfoMask.MIIM_FTYPE | User32.MenuItemInfoMask.MIIM_STRING | User32.MenuItemInfoMask.MIIM_STATE | User32.MenuItemInfoMask.MIIM_BITMAP,
dwTypeData = DataHandle,
cch = CchMax
};
if (User32.GetMenuItemInfo(Menu, i, true, ref Info))
{
if (Info.fType.IsFlagSet(User32.MenuItemType.MFT_STRING) && !Info.fState.IsFlagSet(User32.MenuItemState.MFS_DISABLED))
{
IntPtr VerbWHandle = IntPtr.Zero;
IntPtr VerbAHandle = IntPtr.Zero;
string Verb = null;
try
{
VerbWHandle = Marshal.AllocCoTaskMem(BufferSize);
if (Context.GetCommandString(new IntPtr(Info.wID), Shell32.GCS.GCS_VERBW, IntPtr.Zero, VerbWHandle, CchMax).Succeeded)
{
Verb = Marshal.PtrToStringUni(VerbWHandle);
}
if (string.IsNullOrEmpty(Verb))
{
VerbAHandle = Marshal.AllocCoTaskMem(BufferSize);
if (Context.GetCommandString(new IntPtr(Info.wID), Shell32.GCS.GCS_VERBA, IntPtr.Zero, VerbAHandle, CchMax).Succeeded)
{
Verb = Marshal.PtrToStringAnsi(VerbAHandle);
}
}
}
catch (AccessViolationException AVE)
{
Verb = null;
LogTracer.Log(AVE, "Could not get verb from context menu item");
}
finally
{
if (VerbAHandle != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(VerbAHandle);
}
if (VerbWHandle != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(VerbWHandle);
}
}
Verb ??= string.Empty;
if (!VerbFilterHashSet.Contains(Verb.ToLower()))
{
try
{
string Name = Marshal.PtrToStringUni(DataHandle);
if (!string.IsNullOrEmpty(Name) && !NameFilterHashSet.Contains(Name))
{
ContextMenuPackage Package = new ContextMenuPackage
{
Name = Regex.Replace(Name, @"\(&\S*\)|&", string.Empty),
Id = Convert.ToInt32(Info.wID),
Verb = Verb,
IncludeExtensionItem = IncludeExtensionItem,
RelatedPath = RelatedPath
};
if (Info.hbmpItem != HBITMAP.NULL && ((IntPtr)Info.hbmpItem).ToInt64() != -1)
{
using (Bitmap OriginBitmap = Info.hbmpItem.ToBitmap())
{
BitmapData OriginData = OriginBitmap.LockBits(new Rectangle(0, 0, OriginBitmap.Width, OriginBitmap.Height), ImageLockMode.ReadOnly, OriginBitmap.PixelFormat);
try
{
using (Bitmap ArgbBitmap = new Bitmap(OriginBitmap.Width, OriginBitmap.Height, OriginData.Stride, PixelFormat.Format32bppArgb, OriginData.Scan0))
using (MemoryStream Stream = new MemoryStream())
{
ArgbBitmap.Save(Stream, ImageFormat.Png);
Package.IconData = Stream.ToArray();
}
}
finally
{
OriginBitmap.UnlockBits(OriginData);
}
}
}
else
{
Package.IconData = Array.Empty <byte>();
}
if (Info.hSubMenu != HMENU.NULL)
{
Package.SubMenus = FetchContextMenuCore(Context, Info.hSubMenu, RelatedPath, IncludeExtensionItem);
}
else
{
Package.SubMenus = Array.Empty <ContextMenuPackage>();
}
MenuItems.Add(Package);
}
}
catch
{
continue;
}
}
}
}
}
catch (Exception ex)
{
LogTracer.Log(ex, "Exception was threw when fetching the context menu item");
}
finally
{
Marshal.FreeCoTaskMem(DataHandle);
}
}
return(MenuItems.ToArray());
}
public static List <(string, string, string)> FetchContextMenuItems(IEnumerable <string> Path, bool FetchExtensionMenu = false)
{
ShellItem[] ItemCollecion = Array.Empty <ShellItem>();
try
{
ItemCollecion = Path.Where((Item) => File.Exists(Item) || Directory.Exists(Item)).Select((Item) => ShellItem.Open(Item)).ToArray();
Context = new ShellContextMenu(ItemCollecion);
using (User32.SafeHMENU NewMenu = User32.CreatePopupMenu())
{
Context.ComInterface.QueryContextMenu(NewMenu, 0, 0, ushort.MaxValue, FetchExtensionMenu ? (Shell32.CMF.CMF_VERBSONLY | Shell32.CMF.CMF_EXTENDEDVERBS) : Shell32.CMF.CMF_VERBSONLY);
int MaxCount = User32.GetMenuItemCount(NewMenu);
List <(string, string, string)> ContextMenuItemList = new List <(string, string, string)>(MaxCount);
for (uint i = 0; i < MaxCount; i++)
{
IntPtr DataPtr = Marshal.AllocHGlobal(BufferSize);
try
{
User32.MENUITEMINFO Info = new User32.MENUITEMINFO
{
fMask = User32.MenuItemInfoMask.MIIM_STRING | User32.MenuItemInfoMask.MIIM_ID | User32.MenuItemInfoMask.MIIM_FTYPE | User32.MenuItemInfoMask.MIIM_BITMAP | User32.MenuItemInfoMask.MIIM_STATE,
dwTypeData = DataPtr,
cch = Convert.ToUInt32(BufferSize - 1),
cbSize = Convert.ToUInt32(Marshal.SizeOf(typeof(User32.MENUITEMINFO)))
};
if (User32.GetMenuItemInfo(NewMenu, i, true, ref Info))
{
if (Info.fType == User32.MenuItemType.MFT_STRING && Info.fState == User32.MenuItemState.MFS_ENABLED)
{
IntPtr VerbPtr = Marshal.AllocHGlobal(BufferSize);
try
{
Context.ComInterface.GetCommandString(new IntPtr(Info.wID), Shell32.GCS.GCS_VERBW, IntPtr.Zero, VerbPtr, Convert.ToUInt32(BufferSize - 1));
string Verb = Marshal.PtrToStringUni(VerbPtr);
switch (Verb.ToLower())
{
case "open":
case "opennewprocess":
case "pintohome":
case "cut":
case "copy":
case "paste":
case "delete":
case "properties":
case "openas":
case "link":
case "runas":
case "rename":
{
break;
}
default:
{
IntPtr HelpTextPtr = Marshal.AllocHGlobal(BufferSize);
try
{
Context.ComInterface.GetCommandString(new IntPtr(Info.wID), Shell32.GCS.GCS_HELPTEXTW, IntPtr.Zero, HelpTextPtr, Convert.ToUInt32(BufferSize - 1));
string HelpText = Marshal.PtrToStringUni(HelpTextPtr);
if (Info.hbmpItem != HBITMAP.NULL)
{
using (MemoryStream Stream = new MemoryStream())
{
Bitmap OriginBitmap = Info.hbmpItem.ToBitmap();
BitmapData OriginData = OriginBitmap.LockBits(new Rectangle(0, 0, OriginBitmap.Width, OriginBitmap.Height), ImageLockMode.ReadOnly, OriginBitmap.PixelFormat);
Bitmap ArgbBitmap = new Bitmap(OriginBitmap.Width, OriginBitmap.Height, OriginData.Stride, PixelFormat.Format32bppArgb, OriginData.Scan0);
ArgbBitmap.Save(Stream, ImageFormat.Png);
ContextMenuItemList.Add((HelpText, Verb, Convert.ToBase64String(Stream.ToArray())));
}
}
else
{
ContextMenuItemList.Add((HelpText, Verb, string.Empty));
}
}
finally
{
Marshal.FreeHGlobal(HelpTextPtr);
}
break;
}
}
}
catch
{
continue;
}
finally
{
Marshal.FreeHGlobal(VerbPtr);
}
}
}
}
finally
{
Marshal.FreeHGlobal(DataPtr);
}
}
return(ContextMenuItemList);
}
}
catch
{
return(new List <(string, string, string)>(0));
}
finally
{
Array.ForEach(ItemCollecion, (Item) => Item.Dispose());
}
}
public static List <ContextMenuPackage> FetchContextMenuItems(string Path, bool FetchExtensionMenu = false)
{
try
{
if (File.Exists(Path) || Directory.Exists(Path))
{
using (ShellItem Item = ShellItem.Open(Path))
{
Shell32.IContextMenu Context = Item.GetHandler <Shell32.IContextMenu>();
try
{
using (User32.SafeHMENU NewMenu = User32.CreatePopupMenu())
{
Context.QueryContextMenu(NewMenu, 0, 0, ushort.MaxValue, FetchExtensionMenu ? (Shell32.CMF.CMF_NORMAL | Shell32.CMF.CMF_EXTENDEDVERBS) : Shell32.CMF.CMF_NORMAL);
int MaxCount = User32.GetMenuItemCount(NewMenu);
List <ContextMenuPackage> ContextMenuItemList = new List <ContextMenuPackage>(MaxCount);
for (uint i = 0; i < MaxCount; i++)
{
IntPtr DataPtr = Marshal.AllocHGlobal(BufferSize);
try
{
User32.MENUITEMINFO Info = new User32.MENUITEMINFO
{
fMask = User32.MenuItemInfoMask.MIIM_STRING | User32.MenuItemInfoMask.MIIM_ID | User32.MenuItemInfoMask.MIIM_FTYPE | User32.MenuItemInfoMask.MIIM_BITMAP | User32.MenuItemInfoMask.MIIM_STATE,
dwTypeData = DataPtr,
cch = Convert.ToUInt32(BufferSize - 1),
cbSize = Convert.ToUInt32(Marshal.SizeOf(typeof(User32.MENUITEMINFO)))
};
if (User32.GetMenuItemInfo(NewMenu, i, true, ref Info))
{
if (Info.fType.HasFlag(User32.MenuItemType.MFT_STRING) && Info.fState.HasFlag(User32.MenuItemState.MFS_ENABLED))
{
IntPtr VerbPtr = Marshal.AllocHGlobal(BufferSize);
try
{
Context.GetCommandString(new IntPtr(Info.wID), Shell32.GCS.GCS_VERBW, IntPtr.Zero, VerbPtr, Convert.ToUInt32(BufferSize - 1));
string Verb = Marshal.PtrToStringUni(VerbPtr);
switch (Verb.ToLower())
{
case "open":
case "opennewprocess":
case "pintohome":
case "cut":
case "copy":
case "paste":
case "delete":
case "properties":
case "openas":
case "link":
case "runas":
case "rename":
case "{e82bd2a8-8d63-42fd-b1ae-d364c201d8a7}":
{
break;
}
default:
{
IntPtr HelpTextPtr = Marshal.AllocHGlobal(BufferSize);
try
{
Context.GetCommandString(new IntPtr(Info.wID), Shell32.GCS.GCS_HELPTEXTW, IntPtr.Zero, HelpTextPtr, Convert.ToUInt32(BufferSize - 1));
string HelpText = Marshal.PtrToStringUni(HelpTextPtr);
if (Info.hbmpItem != HBITMAP.NULL)
{
using (Bitmap OriginBitmap = Info.hbmpItem.ToBitmap())
{
BitmapData OriginData = OriginBitmap.LockBits(new Rectangle(0, 0, OriginBitmap.Width, OriginBitmap.Height), ImageLockMode.ReadOnly, OriginBitmap.PixelFormat);
try
{
using (Bitmap ArgbBitmap = new Bitmap(OriginBitmap.Width, OriginBitmap.Height, OriginData.Stride, PixelFormat.Format32bppArgb, OriginData.Scan0))
using (MemoryStream Stream = new MemoryStream())
{
ArgbBitmap.Save(Stream, ImageFormat.Png);
ContextMenuItemList.Add(new ContextMenuPackage(HelpText, Verb, Stream.ToArray()));
}
}
finally
{
OriginBitmap.UnlockBits(OriginData);
}
}
}
else
{
ContextMenuItemList.Add(new ContextMenuPackage(HelpText, Verb, Array.Empty <byte>()));
}
}
finally
{
Marshal.FreeHGlobal(HelpTextPtr);
}
break;
}
}
}
catch
{
continue;
}
finally
{
Marshal.FreeHGlobal(VerbPtr);
}
}
}
}
finally
{
Marshal.FreeHGlobal(DataPtr);
}
}
return(ContextMenuItemList);
}
}
finally
{
Marshal.ReleaseComObject(Context);
}
}
}
else
{
return(new List <ContextMenuPackage>(0));
}
}
catch
{
return(new List <ContextMenuPackage>(0));
}
}
private static ContextMenuPackage[] FetchContextMenuCore(Shell32.IContextMenu Context, HMENU Menu)
{
int MenuItemNum = User32.GetMenuItemCount(Menu);
List <ContextMenuPackage> MenuItems = new List <ContextMenuPackage>(MenuItemNum);
for (uint i = 0; i < MenuItemNum; i++)
{
IntPtr DataHandle = Marshal.AllocHGlobal(BufferSize);
try
{
User32.MENUITEMINFO Info = new User32.MENUITEMINFO
{
cbSize = Convert.ToUInt32(Marshal.SizeOf(typeof(User32.MENUITEMINFO))),
fMask = User32.MenuItemInfoMask.MIIM_ID | User32.MenuItemInfoMask.MIIM_SUBMENU | User32.MenuItemInfoMask.MIIM_FTYPE | User32.MenuItemInfoMask.MIIM_STRING | User32.MenuItemInfoMask.MIIM_STATE | User32.MenuItemInfoMask.MIIM_BITMAP,
dwTypeData = DataHandle,
cch = BufferSize
};
if (User32.GetMenuItemInfo(Menu, i, true, ref Info))
{
if (Info.fType.IsFlagSet(User32.MenuItemType.MFT_STRING) && !Info.fState.IsFlagSet(User32.MenuItemState.MFS_DISABLED))
{
IntPtr VerbHandle = Marshal.AllocHGlobal(BufferSize);
try
{
string Verb = Context.GetCommandString(new IntPtr(Info.wID), Shell32.GCS.GCS_VERBW, IntPtr.Zero, VerbHandle, Convert.ToUInt32(BufferSize)).Succeeded ? Marshal.PtrToStringUni(VerbHandle) : string.Empty;
if (!VerbFilterHashSet.Contains(Verb.ToLower()))
{
try
{
string Name = Marshal.PtrToStringUni(DataHandle);
if (!string.IsNullOrEmpty(Name) && !NameFilterHashSet.Contains(Name))
{
ContextMenuPackage Package = new ContextMenuPackage
{
Name = Regex.Replace(Name, @"\(&\S*\)|&", string.Empty),
Id = Convert.ToInt32(Info.wID),
Verb = Verb
};
if (Info.hbmpItem != HBITMAP.NULL && ((IntPtr)Info.hbmpItem).ToInt64() != -1)
{
using (Bitmap OriginBitmap = Info.hbmpItem.ToBitmap())
{
BitmapData OriginData = OriginBitmap.LockBits(new Rectangle(0, 0, OriginBitmap.Width, OriginBitmap.Height), ImageLockMode.ReadOnly, OriginBitmap.PixelFormat);
try
{
using (Bitmap ArgbBitmap = new Bitmap(OriginBitmap.Width, OriginBitmap.Height, OriginData.Stride, PixelFormat.Format32bppArgb, OriginData.Scan0))
using (MemoryStream Stream = new MemoryStream())
{
ArgbBitmap.Save(Stream, ImageFormat.Png);
Package.IconData = Stream.ToArray();
}
}
finally
{
OriginBitmap.UnlockBits(OriginData);
}
}
}
else
{
Package.IconData = Array.Empty <byte>();
}
if (Info.hSubMenu != HMENU.NULL)
{
Package.SubMenus = FetchContextMenuCore(Context, Info.hSubMenu);
}
else
{
Package.SubMenus = Array.Empty <ContextMenuPackage>();
}
MenuItems.Add(Package);
}
}
catch
{
continue;
}
}
}
finally
{
Marshal.FreeHGlobal(VerbHandle);
}
}
}
}
finally
{
Marshal.FreeHGlobal(DataHandle);
}
}
return(MenuItems.ToArray());
}
