From befa3eaeb4961db70eb35ac2b8211477da54ee39 Mon Sep 17 00:00:00 2001
From: Valentin Radu <valentin.radu@valinet.ro>
Date: Fri, 14 Jan 2022 00:13:02 +0200
Subject: [PATCH] Option to disable `Office` hotkeys
 (`Ctrl`+`Alt`+`Shift`+`Windows` key combinations) (#661) (.4)

---
 CHANGELOG.md                 |  1 +
 ExplorerPatcher/dllmain.c    | 40 ++++++++++++++++++++++++++++++++++++
 ExplorerPatcher/settings.reg |  2 ++
 version.h                    |  6 +++---
 4 files changed, 46 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3af7ca2..7f6bbf3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ Tested on OS build 22000.376.
 
 * Ability to choose a Windows 10 or Windows 11 Start button style for the Windows 10 taskbar (#436, thanks @krlvm)
 * Support for screen readers in the Properties window (#627) (.1)
+* Option to disable `Office` hotkeys (`Ctrl`+`Alt`+`Shift`+`Windows` key combinations) (#661) (.4)
 
 #### Feature enhancements
 
diff --git a/ExplorerPatcher/dllmain.c b/ExplorerPatcher/dllmain.c
index 98d4545..42f1e79 100644
--- a/ExplorerPatcher/dllmain.c
+++ b/ExplorerPatcher/dllmain.c
@@ -81,6 +81,7 @@ BOOL bDoNotRedirectSystemToSettingsApp = FALSE;
 BOOL bDoNotRedirectProgramsAndFeaturesToSettingsApp = FALSE;
 BOOL bDoNotRedirectDateAndTimeToSettingsApp = FALSE;
 BOOL bDoNotRedirectNotificationIconsToSettingsApp = FALSE;
+BOOL bDisableOfficeHotkeys = FALSE;
 #define TASKBARGLOMLEVEL_DEFAULT 2
 #define MMTASKBARGLOMLEVEL_DEFAULT 2
 DWORD dwTaskbarGlomLevel = TASKBARGLOMLEVEL_DEFAULT;
@@ -4460,6 +4461,15 @@ void WINAPI LoadSettings(LPARAM lParam)
             &bDoNotRedirectNotificationIconsToSettingsApp,
             &dwSize
         );
+        dwSize = sizeof(DWORD);
+        RegQueryValueExW(
+            hKey,
+            TEXT("DisableOfficeHotkeys"),
+            0,
+            NULL,
+            &bDisableOfficeHotkeys,
+            &dwSize
+        );
         dwTemp = TASKBARGLOMLEVEL_DEFAULT;
         dwSize = sizeof(DWORD);
         RegQueryValueExW(
@@ -6253,6 +6263,30 @@ BOOL explorer_SetRect(LPRECT lprc, int xLeft, int yTop, int xRight, int yBottom)
 #pragma endregion
 
 
+#pragma region "Disable Office Hotkeys"
+const UINT office_hotkeys[10] = { 0x57, 0x54, 0x59, 0x4F, 0x50, 0x44, 0x4C, 0x58, 0x4E, 0x20 };
+BOOL explorer_RegisterHotkeyHook(HWND hWnd, int id, UINT fsModifiers, UINT vk)
+{
+    if (fsModifiers == (MOD_ALT | MOD_CONTROL | MOD_SHIFT | MOD_WIN | MOD_NOREPEAT) && (
+        vk == office_hotkeys[0] ||
+        vk == office_hotkeys[1] ||
+        vk == office_hotkeys[2] ||
+        vk == office_hotkeys[3] ||
+        vk == office_hotkeys[4] ||
+        vk == office_hotkeys[5] ||
+        vk == office_hotkeys[6] ||
+        vk == office_hotkeys[7] ||
+        vk == office_hotkeys[8] ||
+        vk == office_hotkeys[9]))
+    {
+        SetLastError(ERROR_HOTKEY_ALREADY_REGISTERED);
+        return FALSE;
+    }
+    return RegisterHotKey(hWnd, id, fsModifiers, vk);
+}
+#pragma endregion
+
+
 DWORD InjectBasicFunctions(BOOL bIsExplorer, BOOL bInstall)
 {
     //Sleep(150);
@@ -7010,6 +7044,12 @@ DWORD Inject(BOOL bIsExplorer)
     printf("Open Start on monitor thread\n");
 
 
+    if (bDisableOfficeHotkeys)
+    {
+        VnPatchIAT(hExplorer, "user32.dll", "RegisterHotKey", explorer_RegisterHotkeyHook);
+    }
+
+
     if (bEnableArchivePlugin)
     {
         ArchiveMenuThreadParams* params = calloc(1, sizeof(ArchiveMenuThreadParams));
diff --git a/ExplorerPatcher/settings.reg b/ExplorerPatcher/settings.reg
index 417bad6..1ca9fc0 100644
--- a/ExplorerPatcher/settings.reg
+++ b/ExplorerPatcher/settings.reg
@@ -360,6 +360,8 @@
 "PropertiesInWinX"=dword:00000000
 ;b Remove shortcut key from program settings item in Win+X menu
 "NoMenuAccelerator"=dword:00000000
+;b Disable Office hotkeys (Ctrl+Alt+Shift+Windows key combinations) *
+"DisableOfficeHotkeys"=dword:00000000
 [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
 ;c 6 Default action in the Alt+F4 dialog on the desktop
 ;x 256 Switch user
diff --git a/version.h b/version.h
index d5b1a80..c399621 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define VER_MAJOR 22000
 #define VER_MINOR 376
 #define VER_BUILD_HI    41
-#define VER_BUILD_LO 3
+#define VER_BUILD_LO 4
 #define VER_FLAGS   VS_FF_PRERELEASE
 
 
@@ -12,5 +12,5 @@
 #define VER_STR(arg) #arg
 
 // The String form of the version numbers
-#define VER_FILE_STRING VALUE "FileVersion", "22000.376.41.3"
-#define VER_PRODUCT_STRING VALUE "ProductVersion", "22000.376.41.3"
+#define VER_FILE_STRING VALUE "FileVersion", "22000.376.41.4"
+#define VER_PRODUCT_STRING VALUE "ProductVersion", "22000.376.41.4"