From 1a92fc283187829e26d62a8b6f0f8dd258a1a7c8 Mon Sep 17 00:00:00 2001
From: Daniel Reimer <reimer.daniel@freenet.de>
Date: Wed, 28 Jul 2010 19:13:24 +0000
Subject: [PATCH] Bug 5531: [PATCH] regedit: cut, copy, paste, etc. on hexedit
 by Katayama Hirofumi

svn path=/trunk/; revision=48334
---
 reactos/base/applications/regedit/childwnd.c  |   2 +-
 reactos/base/applications/regedit/hexedit.c   | 283 ++++++++++++++++--
 .../base/applications/regedit/lang/bg-BG.rc   |   9 +
 .../base/applications/regedit/lang/cs-CZ.rc   |   9 +
 .../base/applications/regedit/lang/de-DE.rc   |   9 +
 .../base/applications/regedit/lang/el-GR.rc   |   9 +
 .../base/applications/regedit/lang/en-US.rc   |   9 +
 .../base/applications/regedit/lang/es-ES.rc   |   9 +
 .../base/applications/regedit/lang/fr-FR.rc   |   9 +
 .../base/applications/regedit/lang/hu-HU.rc   |   9 +
 .../base/applications/regedit/lang/id-ID.rc   |   9 +
 .../base/applications/regedit/lang/it-IT.rc   |   9 +
 .../base/applications/regedit/lang/ja-JP.rc   |   9 +
 .../base/applications/regedit/lang/ko-KR.rc   |   9 +
 .../base/applications/regedit/lang/nl-NL.rc   |   9 +
 .../base/applications/regedit/lang/no-NO.rc   |   9 +
 .../base/applications/regedit/lang/pl-PL.rc   |   9 +
 .../base/applications/regedit/lang/pt-BR.rc   |   9 +
 .../base/applications/regedit/lang/pt-PT.rc   |   9 +
 .../base/applications/regedit/lang/ru-RU.rc   |   9 +
 .../base/applications/regedit/lang/sk-SK.rc   |   9 +
 .../base/applications/regedit/lang/sl-SI.rc   |   9 +
 .../base/applications/regedit/lang/sv-SE.rc   |   9 +
 .../base/applications/regedit/lang/th-TH.rc   |   9 +
 .../base/applications/regedit/lang/uk-UA.rc   |   9 +
 .../base/applications/regedit/lang/zh-CN.rc   |   9 +
 reactos/base/applications/regedit/main.h      |   1 +
 reactos/base/applications/regedit/resource.h  |   7 +
 reactos/base/applications/regedit/treeview.c  |  26 +-
 29 files changed, 508 insertions(+), 27 deletions(-)

diff --git a/reactos/base/applications/regedit/childwnd.c b/reactos/base/applications/regedit/childwnd.c
index 0d76562ae39..6f3de0b4910 100644
--- a/reactos/base/applications/regedit/childwnd.c
+++ b/reactos/base/applications/regedit/childwnd.c
@@ -587,8 +587,8 @@ LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lPa
             }
             else
                 pt.x = pt.y = 0;
+            ClientToScreen(pChildWnd->hListWnd, &pt);
         }
-        ClientToScreen(pChildWnd->hListWnd, &pt);
         if(i == -1)
         {
           TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW), TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
diff --git a/reactos/base/applications/regedit/hexedit.c b/reactos/base/applications/regedit/hexedit.c
index b84f431d04e..8a7438be84e 100644
--- a/reactos/base/applications/regedit/hexedit.c
+++ b/reactos/base/applications/regedit/hexedit.c
@@ -47,9 +47,11 @@ typedef struct
 
   INT SelStart;
   INT SelEnd;
-  BOOL SelOnField;
 } HEXEDIT_DATA, *PHEXEDIT_DATA;
 
+static const TCHAR ClipboardFormatName[] = TEXT("RegEdit_HexData");
+static UINT ClipboardFormatID = 0;
+
 /* hit test codes */
 #define HEHT_LEFTMARGIN	(0x1)
 #define HEHT_ADDRESS	(0x2)
@@ -67,6 +69,8 @@ RegisterHexEditorClass(HINSTANCE hInstance)
 {
   WNDCLASSEX WndClass;
 
+  ClipboardFormatID = RegisterClipboardFormat(ClipboardFormatName);
+
   ZeroMemory(&WndClass, sizeof(WNDCLASSEX));
   WndClass.cbSize = sizeof(WNDCLASSEX);
   WndClass.style = CS_DBLCLKS;
@@ -218,7 +222,7 @@ HEXEDIT_PaintLines(PHEXEDIT_DATA hed, HDC hDC, DWORD ScrollPos, DWORD First, DWO
     if(ScrollPos + First == 0)
     {
       /* draw address */
-      _stprintf(addr, _T("%04X"), 0);
+      wsprintf(addr, TEXT("%04X"), 0);
       TextOut(hDC, hed->LeftMargin, First * hed->LineHeight, addr, 4);
     }
   }
@@ -240,7 +244,7 @@ HEXEDIT_PaintLines(PHEXEDIT_DATA hed, HDC hDC, DWORD ScrollPos, DWORD First, DWO
       dx = hed->LeftMargin;
 
       /* draw address */
-      _stprintf(addr, _T("%04lX"), linestart);
+      wsprintf(addr, TEXT("%04lX"), linestart);
       TextOut(hDC, dx, dy, addr, 4);
 
       dx += ((4 + hed->AddressSpacing) * hed->CharWidth);
@@ -260,7 +264,7 @@ HEXEDIT_PaintLines(PHEXEDIT_DATA hed, HDC hDC, DWORD ScrollPos, DWORD First, DWO
         rct.left += dh;
         rct.right += dh;
 
-	_stprintf(hex, _T("%02X"), *(current++));
+        wsprintf(hex, TEXT("%02X"), *(current++));
         if (i0 <= i && i < i1)
         {
           rct2.left = dx;
@@ -275,7 +279,7 @@ HEXEDIT_PaintLines(PHEXEDIT_DATA hed, HDC hDC, DWORD ScrollPos, DWORD First, DWO
         }
         else
           ExtTextOut(hDC, dx, dy, ETO_OPAQUE, &rct, hex, 2, NULL);
-	dx += dh;
+          dx += dh;
         i++;
       }
 
@@ -285,8 +289,8 @@ HEXEDIT_PaintLines(PHEXEDIT_DATA hed, HDC hDC, DWORD ScrollPos, DWORD First, DWO
       i = isave;
       for(x = 0; x < hed->ColumnsPerLine && current < end; x++)
       {
-	_stprintf(hex, _T("%C"), *(current++));
-	hex[0] = ((hex[0] & _T('\x007f')) >= _T(' ') ? hex[0] : _T('.'));
+        wsprintf(hex, _T("%C"), *(current++));
+        hex[0] = ((hex[0] & _T('\x007f')) >= _T(' ') ? hex[0] : _T('.'));
         if (i0 <= i && i < i1)
         {
           rct2.left = dx;
@@ -300,7 +304,7 @@ HEXEDIT_PaintLines(PHEXEDIT_DATA hed, HDC hDC, DWORD ScrollPos, DWORD First, DWO
         }
         else
           TextOut(hDC, dx, dy, hex, 1);
-	dx += hed->CharWidth;
+        dx += hed->CharWidth;
         i++;
       }
 
@@ -415,6 +419,149 @@ HEXEDIT_IndexFromPoint(PHEXEDIT_DATA hed, POINTS pt, DWORD Hit, POINT *EditPos,
   return Index;
 }
 
+static VOID
+HEXEDIT_Copy(PHEXEDIT_DATA hed)
+{
+  PBYTE pb, buf;
+  UINT cb;
+  INT i0, i1;
+  HGLOBAL hGlobal;
+
+  if (hed->SelStart < hed->SelEnd)
+  {
+    i0 = hed->SelStart;
+    i1 = hed->SelEnd;
+  }
+  else
+  {
+    i0 = hed->SelEnd;
+    i1 = hed->SelStart;
+  }
+
+  cb = i1 - i0;
+  if (cb == 0)
+    return;
+
+  hGlobal = GlobalAlloc(GHND | GMEM_SHARE, cb + sizeof(DWORD));
+  if (hGlobal == NULL)
+    return;
+
+  pb = GlobalLock(hGlobal);
+  if (pb)
+  {
+    *(PDWORD)pb = cb;
+    pb += sizeof(DWORD);
+    buf = (PBYTE) LocalLock(hed->hBuffer);
+    if (buf)
+    {
+      CopyMemory(pb, buf + i0, cb);
+      LocalUnlock(hed->hBuffer);
+    }
+    GlobalUnlock(hGlobal);
+
+    if (OpenClipboard(hed->hWndSelf))
+    {
+      EmptyClipboard();
+      SetClipboardData(ClipboardFormatID, hGlobal);
+      CloseClipboard();
+    }
+  }
+  else
+    GlobalFree(hGlobal);
+}
+
+static VOID
+HEXEDIT_Delete(PHEXEDIT_DATA hed)
+{
+  PBYTE buf;
+  INT i0, i1;
+  UINT bufsize;
+
+  if (hed->SelStart < hed->SelEnd)
+  {
+    i0 = hed->SelStart;
+    i1 = hed->SelEnd;
+  }
+  else
+  {
+    i0 = hed->SelEnd;
+    i1 = hed->SelStart;
+  }
+
+  if (i0 != i1)
+  {
+    bufsize = (hed->hBuffer ? LocalSize(hed->hBuffer) : 0);
+    buf = (PBYTE) LocalLock(hed->hBuffer);
+    if (buf)
+    {
+      MoveMemory(buf + i0, buf + i1, bufsize - i1);
+      LocalUnlock(hed->hBuffer);
+    }
+    HexEdit_SetMaxBufferSize(hed->hWndSelf, bufsize - (i1 - i0));
+    hed->InMid = FALSE;
+    hed->Index = hed->SelStart = hed->SelEnd = i0;
+    hed->CaretCol = hed->Index % hed->ColumnsPerLine;
+    hed->CaretLine = hed->Index / hed->ColumnsPerLine;
+    InvalidateRect(hed->hWndSelf, NULL, TRUE);
+    HEXEDIT_MoveCaret(hed, TRUE);
+  }
+}
+
+static VOID
+HEXEDIT_Paste(PHEXEDIT_DATA hed)
+{
+  HGLOBAL hGlobal;
+  UINT bufsize;
+  PBYTE pb, buf;
+  DWORD cb;
+
+  HEXEDIT_Delete(hed);
+  bufsize = (hed->hBuffer ? LocalSize(hed->hBuffer) : 0);
+
+  if (OpenClipboard(hed->hWndSelf))
+  {
+    hGlobal = GetClipboardData(ClipboardFormatID);
+    if (hGlobal != NULL)
+    {
+      pb = (PBYTE) GlobalLock(hGlobal);
+      cb = *(PDWORD) pb;
+      pb += sizeof(DWORD);
+      HexEdit_SetMaxBufferSize(hed->hWndSelf, bufsize + cb);
+      buf = (PBYTE) LocalLock(hed->hBuffer);
+      if (buf)
+      {
+        MoveMemory(buf + hed->Index + cb, buf + hed->Index,
+                   bufsize - hed->Index);
+        CopyMemory(buf + hed->Index, pb, cb);
+        LocalUnlock(hed->hBuffer);
+      }
+      GlobalUnlock(hGlobal);
+    }
+    CloseClipboard();
+  }
+  InvalidateRect(hed->hWndSelf, NULL, TRUE);
+  HEXEDIT_MoveCaret(hed, TRUE);
+}
+
+static VOID
+HEXEDIT_Cut(PHEXEDIT_DATA hed)
+{
+  HEXEDIT_Copy(hed);
+  HEXEDIT_Delete(hed);
+}
+
+static VOID
+HEXEDIT_SelectAll(PHEXEDIT_DATA hed)
+{
+  INT bufsize;
+
+  bufsize = (hed->hBuffer ? (INT) LocalSize(hed->hBuffer) : 0);
+  hed->Index = hed->SelStart = 0;
+  hed->SelEnd = bufsize;
+  InvalidateRect(hed->hWndSelf, NULL, TRUE);
+  HEXEDIT_MoveCaret(hed, TRUE);
+}
+
 /*** Control specific messages ************************************************/
 
 static LRESULT
@@ -808,19 +955,18 @@ HEXEDIT_WM_LBUTTONDOWN(PHEXEDIT_DATA hed, INT Buttons, POINTS Pt)
 
   if (GetAsyncKeyState(VK_SHIFT) < 0)
   {
-    if (hed->SelOnField)
+    if (hed->EditingField)
       hed->Index = HEXEDIT_IndexFromPoint(hed, Pt, HEHT_HEXDUMP, &EditPos, &NewField);
     else
       hed->Index = HEXEDIT_IndexFromPoint(hed, Pt, HEHT_ASCIIDUMP, &EditPos, &NewField);
     hed->SelEnd = hed->Index;
-    hed->EditingField = hed->SelOnField;
   }
   else
   {
     Hit = HEXEDIT_HitRegionTest(hed, Pt);
     hed->Index = HEXEDIT_IndexFromPoint(hed, Pt, Hit, &EditPos, &NewField);
     hed->SelStart = hed->SelEnd = hed->Index;
-    hed->SelOnField = hed->EditingField = NewField;
+    hed->EditingField = NewField;
     SetCapture(hed->hWndSelf);
   }
   hed->CaretCol = EditPos.x;
@@ -839,7 +985,7 @@ HEXEDIT_WM_LBUTTONUP(PHEXEDIT_DATA hed, INT Buttons, POINTS Pt)
   POINT EditPos;
   if (GetCapture() == hed->hWndSelf)
   {
-    if (hed->SelOnField)
+    if (hed->EditingField)
       hed->Index = HEXEDIT_IndexFromPoint(hed, Pt, HEHT_HEXDUMP, &EditPos, &NewField);
     else
       hed->Index = HEXEDIT_IndexFromPoint(hed, Pt, HEHT_ASCIIDUMP, &EditPos, &NewField);
@@ -860,7 +1006,7 @@ HEXEDIT_WM_MOUSEMOVE(PHEXEDIT_DATA hed, INT Buttons, POINTS Pt)
   POINT EditPos;
   if (GetCapture() == hed->hWndSelf)
   {
-    if (hed->SelOnField)
+    if (hed->EditingField)
       hed->Index = HEXEDIT_IndexFromPoint(hed, Pt, HEHT_HEXDUMP, &EditPos, &NewField);
     else
       hed->Index = HEXEDIT_IndexFromPoint(hed, Pt, HEHT_ASCIIDUMP, &EditPos, &NewField);
@@ -900,8 +1046,51 @@ HEXEDIT_WM_KEYDOWN(PHEXEDIT_DATA hed, INT VkCode)
 
   switch(VkCode)
   {
-    case VK_DELETE:
+    case 'X':
+      if (GetAsyncKeyState(VK_SHIFT) >= 0 && 
+          GetAsyncKeyState(VK_CONTROL) < 0 && hed->SelStart != hed->SelEnd)
+        HEXEDIT_Cut(hed);
+      else
+        return TRUE;
+      break;
+
+    case 'C':
+      if (GetAsyncKeyState(VK_SHIFT) >= 0 && 
+          GetAsyncKeyState(VK_CONTROL) < 0 && hed->SelStart != hed->SelEnd)
+        HEXEDIT_Copy(hed);
+      else
+        return TRUE;
+      break;
+
+    case 'V':
+      if (GetAsyncKeyState(VK_SHIFT) >= 0 && GetAsyncKeyState(VK_CONTROL) < 0)
+        HEXEDIT_Paste(hed);
+      else
+        return TRUE;
+      break;
+
+    case 'A':
+      if (GetAsyncKeyState(VK_SHIFT) >= 0 && GetAsyncKeyState(VK_CONTROL) < 0)
+        HEXEDIT_SelectAll(hed);
+      else
+        return TRUE;
+      break;
+
+    case VK_INSERT:
       if (hed->SelStart != hed->SelEnd)
+      {
+        if (GetAsyncKeyState(VK_SHIFT) >= 0 && GetAsyncKeyState(VK_CONTROL) < 0)
+          HEXEDIT_Copy(hed);
+      }
+      if (GetAsyncKeyState(VK_SHIFT) < 0 && GetAsyncKeyState(VK_CONTROL) >= 0)
+        HEXEDIT_Paste(hed);
+      break;
+
+    case VK_DELETE:
+      if (GetAsyncKeyState(VK_SHIFT) < 0 && GetAsyncKeyState(VK_CONTROL) >= 0 && 
+          hed->SelStart != hed->SelEnd)
+        HEXEDIT_Copy(hed);
+      if (i0 != i1)
       {
         buf = (PBYTE) LocalLock(hed->hBuffer);
         if (buf)
@@ -946,7 +1135,7 @@ HEXEDIT_WM_KEYDOWN(PHEXEDIT_DATA hed, INT VkCode)
       break;
 
     case VK_BACK:
-      if (hed->SelStart != hed->SelEnd)
+      if (i0 != i1)
       {
         buf = (PBYTE) LocalLock(hed->hBuffer);
         if (buf)
@@ -986,6 +1175,8 @@ HEXEDIT_WM_KEYDOWN(PHEXEDIT_DATA hed, INT VkCode)
           hed->CaretCol = hed->Index % hed->ColumnsPerLine;
           hed->CaretLine = hed->Index / hed->ColumnsPerLine;
         }
+        else
+          return TRUE;
         HexEdit_SetMaxBufferSize(hed->hWndSelf, bufsize - 1);
         hed->InMid = FALSE;
       }
@@ -1056,6 +1247,9 @@ HEXEDIT_WM_KEYDOWN(PHEXEDIT_DATA hed, INT VkCode)
       InvalidateRect(hed->hWndSelf, NULL, TRUE);
       HEXEDIT_MoveCaret(hed, TRUE);
       break;
+
+    default:
+      return TRUE;
   }
 
   return FALSE;
@@ -1185,6 +1379,40 @@ HEXEDIT_WM_SIZE(PHEXEDIT_DATA hed, DWORD sType, WORD NewWidth, WORD NewHeight)
   return 0;
 }
 
+static VOID
+HEXEDIT_WM_CONTEXTMENU(PHEXEDIT_DATA hed, INT x, INT y)
+{
+  HMENU hMenu;
+  RECT rc;
+
+  if (x == -1 && y == -1)
+  {
+    GetWindowRect(hed->hWndSelf, &rc);
+    x = rc.left;
+    y = rc.top;
+  }
+
+  hMenu = GetSubMenu(hPopupMenus, PM_HEXEDIT);
+  if (hed->SelStart == hed->SelEnd)
+  {
+    EnableMenuItem(hMenu, ID_HEXEDIT_CUT, MF_GRAYED);
+    EnableMenuItem(hMenu, ID_HEXEDIT_COPY, MF_GRAYED);
+    EnableMenuItem(hMenu, ID_HEXEDIT_PASTE, MF_GRAYED);
+    EnableMenuItem(hMenu, ID_HEXEDIT_DELETE, MF_GRAYED);
+  }
+  else
+  {
+    EnableMenuItem(hMenu, ID_HEXEDIT_CUT, MF_ENABLED);
+    EnableMenuItem(hMenu, ID_HEXEDIT_COPY, MF_ENABLED);
+    EnableMenuItem(hMenu, ID_HEXEDIT_PASTE, MF_ENABLED);
+    EnableMenuItem(hMenu, ID_HEXEDIT_DELETE, MF_ENABLED);
+  }
+
+  SetForegroundWindow(hed->hWndSelf);
+  TrackPopupMenu(hMenu, TPM_RIGHTBUTTON, x, y, 0, hed->hWndSelf, NULL);
+  PostMessage(hed->hWndSelf, WM_NULL, 0, 0);
+}
+
 INT_PTR CALLBACK
 HexEditWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 {
@@ -1291,11 +1519,32 @@ HexEditWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
       break;
 
     case WM_CONTEXTMENU:
-      /* FIXME: Implement Cut, Copy, Paste, Delete and Select All */
+      HEXEDIT_WM_CONTEXTMENU(hed, (short)LOWORD(lParam), (short)HIWORD(lParam));
       break;
 
     case WM_COMMAND:
-      /* FIXME: Implement Cut, Copy, Paste, Delete and Select All */
+      switch(LOWORD(wParam))
+      {
+        case ID_HEXEDIT_CUT:
+          HEXEDIT_Cut(hed);
+          break;
+
+        case ID_HEXEDIT_COPY:
+          HEXEDIT_Copy(hed);
+          break;
+
+        case ID_HEXEDIT_PASTE:
+          HEXEDIT_Paste(hed);
+          break;
+
+        case ID_HEXEDIT_DELETE:
+          HEXEDIT_Delete(hed);
+          break;
+
+        case ID_HEXEDIT_SELECT_ALL:
+          HEXEDIT_SelectAll(hed);
+          break;
+      }
       break;
   }
 
diff --git a/reactos/base/applications/regedit/lang/bg-BG.rc b/reactos/base/applications/regedit/lang/bg-BG.rc
index c7bd4215245..7ecabedf807 100644
--- a/reactos/base/applications/regedit/lang/bg-BG.rc
+++ b/reactos/base/applications/regedit/lang/bg-BG.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Çàïîìíÿíå ñòîéíîñòòà íà êëþ÷à",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/cs-CZ.rc b/reactos/base/applications/regedit/lang/cs-CZ.rc
index b412af4c186..c1d12dbfa95 100644
--- a/reactos/base/applications/regedit/lang/cs-CZ.rc
+++ b/reactos/base/applications/regedit/lang/cs-CZ.rc
@@ -160,6 +160,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "Z&kopírovat název klíèe",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/de-DE.rc b/reactos/base/applications/regedit/lang/de-DE.rc
index 3b2b646f738..4cf8657a80f 100644
--- a/reactos/base/applications/regedit/lang/de-DE.rc
+++ b/reactos/base/applications/regedit/lang/de-DE.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "S&chlüsselnamen kopieren",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "&Ausschneiden", ID_HEXEDIT_CUT
+        MENUITEM "&Kopieren", ID_HEXEDIT_COPY
+        MENUITEM "&Einfügen", ID_HEXEDIT_PASTE
+        MENUITEM "&Löschen", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "A&lles auswählen", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/el-GR.rc b/reactos/base/applications/regedit/lang/el-GR.rc
index 34e4202d15d..281ed2d299e 100644
--- a/reactos/base/applications/regedit/lang/el-GR.rc
+++ b/reactos/base/applications/regedit/lang/el-GR.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&ÁíôéãñáöÞ Ïíüìáôïò Êëåéäéïý",    ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/en-US.rc b/reactos/base/applications/regedit/lang/en-US.rc
index b7e948f8a9a..e5a94cba8e7 100644
--- a/reactos/base/applications/regedit/lang/en-US.rc
+++ b/reactos/base/applications/regedit/lang/en-US.rc
@@ -160,6 +160,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Key Name",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/es-ES.rc b/reactos/base/applications/regedit/lang/es-ES.rc
index b7e703048da..b128846bca1 100644
--- a/reactos/base/applications/regedit/lang/es-ES.rc
+++ b/reactos/base/applications/regedit/lang/es-ES.rc
@@ -165,6 +165,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copiar nombre de clave",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/fr-FR.rc b/reactos/base/applications/regedit/lang/fr-FR.rc
index ed997425aff..c5042da4c9a 100644
--- a/reactos/base/applications/regedit/lang/fr-FR.rc
+++ b/reactos/base/applications/regedit/lang/fr-FR.rc
@@ -165,6 +165,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copier le nom de la clé",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/hu-HU.rc b/reactos/base/applications/regedit/lang/hu-HU.rc
index 3c7277b79ab..42faef3a4ea 100644
--- a/reactos/base/applications/regedit/lang/hu-HU.rc
+++ b/reactos/base/applications/regedit/lang/hu-HU.rc
@@ -163,6 +163,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Key Name",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/id-ID.rc b/reactos/base/applications/regedit/lang/id-ID.rc
index c6b9bb1cb49..059abec9576 100644
--- a/reactos/base/applications/regedit/lang/id-ID.rc
+++ b/reactos/base/applications/regedit/lang/id-ID.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Nama Kunci",            ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/it-IT.rc b/reactos/base/applications/regedit/lang/it-IT.rc
index f5a2fc96540..a86981a0865 100644
--- a/reactos/base/applications/regedit/lang/it-IT.rc
+++ b/reactos/base/applications/regedit/lang/it-IT.rc
@@ -165,6 +165,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copia il nome della chiave",  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/ja-JP.rc b/reactos/base/applications/regedit/lang/ja-JP.rc
index 3108fb8aa34..8b1816bf03f 100644
--- a/reactos/base/applications/regedit/lang/ja-JP.rc
+++ b/reactos/base/applications/regedit/lang/ja-JP.rc
@@ -160,6 +160,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "ƒL[–¼‚̃Rƒs[(&C)",          ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "Ø‚èŽæ‚è(&C)", ID_HEXEDIT_CUT
+        MENUITEM "ƒRƒs[(&C)", ID_HEXEDIT_COPY
+        MENUITEM "“\\‚è•t‚¯(&P)", ID_HEXEDIT_PASTE
+        MENUITEM "íœ(&D)", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "‚·‚ׂđI‘ð(&A)", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/ko-KR.rc b/reactos/base/applications/regedit/lang/ko-KR.rc
index 5aef6a1b358..01777d0344b 100644
--- a/reactos/base/applications/regedit/lang/ko-KR.rc
+++ b/reactos/base/applications/regedit/lang/ko-KR.rc
@@ -147,6 +147,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "Å° À̸§ º¹»ç(&C)",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/nl-NL.rc b/reactos/base/applications/regedit/lang/nl-NL.rc
index 158a4ec4d24..be86610e59c 100644
--- a/reactos/base/applications/regedit/lang/nl-NL.rc
+++ b/reactos/base/applications/regedit/lang/nl-NL.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Key Name",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/no-NO.rc b/reactos/base/applications/regedit/lang/no-NO.rc
index ac3e7faa330..b052432f8ec 100644
--- a/reactos/base/applications/regedit/lang/no-NO.rc
+++ b/reactos/base/applications/regedit/lang/no-NO.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Kopier nøkkelnavn",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/pl-PL.rc b/reactos/base/applications/regedit/lang/pl-PL.rc
index ebf6da04151..198125c772c 100644
--- a/reactos/base/applications/regedit/lang/pl-PL.rc
+++ b/reactos/base/applications/regedit/lang/pl-PL.rc
@@ -167,6 +167,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Kopiuj nazwê klucza",           ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/pt-BR.rc b/reactos/base/applications/regedit/lang/pt-BR.rc
index 9c1f7245ec4..4cd21990e30 100644
--- a/reactos/base/applications/regedit/lang/pt-BR.rc
+++ b/reactos/base/applications/regedit/lang/pt-BR.rc
@@ -163,6 +163,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copiar nome da chave",           ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/pt-PT.rc b/reactos/base/applications/regedit/lang/pt-PT.rc
index 081ba3b0800..15fee2f3166 100644
--- a/reactos/base/applications/regedit/lang/pt-PT.rc
+++ b/reactos/base/applications/regedit/lang/pt-PT.rc
@@ -163,6 +163,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Key Name",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/ru-RU.rc b/reactos/base/applications/regedit/lang/ru-RU.rc
index 3d38ed24f01..62892800f15 100644
--- a/reactos/base/applications/regedit/lang/ru-RU.rc
+++ b/reactos/base/applications/regedit/lang/ru-RU.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Êîïèðîâàòü èìÿ êëþ÷à",       ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/sk-SK.rc b/reactos/base/applications/regedit/lang/sk-SK.rc
index 1ef4df97081..d8d558852b3 100644
--- a/reactos/base/applications/regedit/lang/sk-SK.rc
+++ b/reactos/base/applications/regedit/lang/sk-SK.rc
@@ -147,6 +147,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Key Name",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/sl-SI.rc b/reactos/base/applications/regedit/lang/sl-SI.rc
index 5c529ffe6fb..d5c5804c881 100644
--- a/reactos/base/applications/regedit/lang/sl-SI.rc
+++ b/reactos/base/applications/regedit/lang/sl-SI.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Key Name",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/sv-SE.rc b/reactos/base/applications/regedit/lang/sv-SE.rc
index efce60a4190..ee1515dd08b 100644
--- a/reactos/base/applications/regedit/lang/sv-SE.rc
+++ b/reactos/base/applications/regedit/lang/sv-SE.rc
@@ -160,6 +160,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Kopiera nyckelnamn",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/th-TH.rc b/reactos/base/applications/regedit/lang/th-TH.rc
index d69da60f90e..c7bb7fde7d9 100644
--- a/reactos/base/applications/regedit/lang/th-TH.rc
+++ b/reactos/base/applications/regedit/lang/th-TH.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Copy Key Name",                  ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/uk-UA.rc b/reactos/base/applications/regedit/lang/uk-UA.rc
index 6638339705a..5fd1fa5ec45 100644
--- a/reactos/base/applications/regedit/lang/uk-UA.rc
+++ b/reactos/base/applications/regedit/lang/uk-UA.rc
@@ -163,6 +163,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "&Êîï³þâàòè ³ì'ÿ ðîçä³ëó",         ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/lang/zh-CN.rc b/reactos/base/applications/regedit/lang/zh-CN.rc
index 87a1e6fd5e4..0d20667cdd3 100644
--- a/reactos/base/applications/regedit/lang/zh-CN.rc
+++ b/reactos/base/applications/regedit/lang/zh-CN.rc
@@ -162,6 +162,15 @@ BEGIN
         MENUITEM SEPARATOR
         MENUITEM "¸´ÖÆÏîÃû³Æ(&C)",              ID_EDIT_COPYKEYNAME
   END
+  POPUP ""
+  BEGIN
+        MENUITEM "C&ut", ID_HEXEDIT_CUT
+        MENUITEM "&Copy", ID_HEXEDIT_COPY
+        MENUITEM "&Paste", ID_HEXEDIT_PASTE
+        MENUITEM "&Delete", ID_HEXEDIT_DELETE
+        MENUITEM SEPARATOR
+        MENUITEM "Select &All", ID_HEXEDIT_SELECT_ALL
+  END
 END
 
 
diff --git a/reactos/base/applications/regedit/main.h b/reactos/base/applications/regedit/main.h
index ea16ceec7cb..eee317e67ae 100644
--- a/reactos/base/applications/regedit/main.h
+++ b/reactos/base/applications/regedit/main.h
@@ -35,6 +35,7 @@
 #define PM_MODIFYVALUE  0
 #define PM_NEW          1
 #define PM_TREECONTEXT  2
+#define PM_HEXEDIT      3
 
 #define MAX_NEW_KEY_LEN 128
 
diff --git a/reactos/base/applications/regedit/resource.h b/reactos/base/applications/regedit/resource.h
index 6da08790a28..2190e0e3ed6 100644
--- a/reactos/base/applications/regedit/resource.h
+++ b/reactos/base/applications/regedit/resource.h
@@ -108,6 +108,11 @@
 #define ID_REGISTRY_PRINTSUBTREE        32832
 #define ID_REGISTRY_PRINTERSETUP        32833
 #define ID_REGISTRY_SAVESUBTREEAS       32834
+#define ID_HEXEDIT_CUT                  32835
+#define ID_HEXEDIT_COPY                 32836
+#define ID_HEXEDIT_PASTE                32837
+#define ID_HEXEDIT_DELETE               32838
+#define ID_HEXEDIT_SELECT_ALL           32839
 #define IDS_LICENSE                     32835
 #define IDS_ERROR                       32836
 #define IDS_BAD_VALUE			32837
@@ -203,6 +208,7 @@
 #define IDC_LOOKAT_DATA                 2016
 #define IDC_MATCHSTRING                 2017
 #define IDC_MATCHCASE                   2018
+
 #define IDS_FINISHEDFIND                2019
 
 #define ID_FAVORITES_MIN                2100
@@ -210,4 +216,5 @@
 
 #define ID_ACCEL                        3000
 
+
 #define IDC_STATIC                      -1
diff --git a/reactos/base/applications/regedit/treeview.c b/reactos/base/applications/regedit/treeview.c
index cfbd401d009..cd592036907 100644
--- a/reactos/base/applications/regedit/treeview.c
+++ b/reactos/base/applications/regedit/treeview.c
@@ -540,15 +540,16 @@ BOOL CreateNewKey(HWND hwndTV, HTREEITEM hItem)
     TCHAR szNewKey[128];
     LPCTSTR pszKeyPath;
     int iIndex = 1;
-    HKEY hRootKey;
-    HKEY hKey = NULL;
-    HKEY hNewKey = NULL;
+    LONG nResult;
+    HKEY hRootKey = NULL, hKey = NULL, hNewKey = NULL;
     BOOL bSuccess = FALSE;
     DWORD dwDisposition;
     HTREEITEM hNewItem;
 
-    pszKeyPath = GetItemPath(g_pChildWnd->hTreeWnd, hItem, &hRootKey);
-    if (RegOpenKey(hRootKey, pszKeyPath, &hKey) != ERROR_SUCCESS)
+    pszKeyPath = GetItemPath(hwndTV, hItem, &hRootKey);
+    if (pszKeyPath[0] == TEXT('\0'))
+        hKey = hRootKey;
+    else if (RegOpenKey(hRootKey, pszKeyPath, &hKey) != ERROR_SUCCESS)
         goto done;
 
     if (LoadString(hInst, IDS_NEW_KEY, szNewKeyFormat, sizeof(szNewKeyFormat) / sizeof(szNewKeyFormat[0])) <= 0)
@@ -557,13 +558,20 @@ BOOL CreateNewKey(HWND hwndTV, HTREEITEM hItem)
     /* Need to create a new key with a unique name */
     do
     {
-        _sntprintf(szNewKey, sizeof(szNewKey) / sizeof(szNewKey[0]), szNewKeyFormat, iIndex++);
-        RegCreateKeyEx(hKey, szNewKey, 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hNewKey, &dwDisposition);
-        if (hNewKey && (dwDisposition == REG_OPENED_EXISTING_KEY))
+        wsprintf(szNewKey, szNewKeyFormat, iIndex++);
+        nResult = RegCreateKeyEx(hKey, szNewKey, 0, NULL, 0, KEY_WRITE, NULL, &hNewKey, &dwDisposition);
+        if (hNewKey && dwDisposition == REG_OPENED_EXISTING_KEY)
         {
             RegCloseKey(hNewKey);
             hNewKey = NULL;
         }
+        else if (!hNewKey)
+        {
+            TCHAR sz[256];
+            wsprintf(sz, TEXT("Cannot create new key!\n\nError Code: %d"), nResult);
+            MessageBox(hFrameWnd, sz, NULL, MB_ICONERROR);
+            goto done;
+        }
     }
     while(!hNewKey);
 
@@ -578,7 +586,7 @@ BOOL CreateNewKey(HWND hwndTV, HTREEITEM hItem)
     bSuccess = TRUE;
 
 done:
-    if (hKey)
+    if (hKey != hRootKey && hKey)
         RegCloseKey(hKey);
     if (hNewKey)
         RegCloseKey(hNewKey);
-- 
2.17.1