From a2b28e534586927e137a08ede18aa3927922e064 Mon Sep 17 00:00:00 2001
From: Valentin Radu <valentin.radu@valinet.ro>
Date: Mon, 28 Mar 2022 23:34:04 +0300
Subject: [PATCH] File Explorer: Option to enable legacy file transfer dialog

---
 ExplorerPatcher/dllmain.c      | 26 ++++++++++++++++++++++++++
 ExplorerPatcher/settings.reg   |  3 +++
 ExplorerPatcher/settings10.reg |  3 +++
 3 files changed, 32 insertions(+)

diff --git a/ExplorerPatcher/dllmain.c b/ExplorerPatcher/dllmain.c
index 7554c8d..3b65c23 100644
--- a/ExplorerPatcher/dllmain.c
+++ b/ExplorerPatcher/dllmain.c
@@ -82,6 +82,7 @@ DWORD bOpenAtLogon = FALSE;
 DWORD bClockFlyoutOnWinC = FALSE;
 DWORD bUseClassicDriveGrouping = FALSE;
 DWORD dwFileExplorerCommandUI = 9999;
+DWORD bLegacyFileTransferDialog = FALSE;
 DWORD bDisableImmersiveContextMenu = FALSE;
 DWORD bClassicThemeMitigations = FALSE;
 DWORD bWasClassicThemeMitigationsSet = FALSE;
@@ -5895,6 +5896,15 @@ void WINAPI LoadSettings(LPARAM lParam)
             }
         }
         dwSize = sizeof(DWORD);
+        RegQueryValueExW(
+            hKey,
+            TEXT("LegacyFileTransferDialog"),
+            0,
+            NULL,
+            &bLegacyFileTransferDialog,
+            &dwSize
+        );
+        dwSize = sizeof(DWORD);
         RegQueryValueExW(
             hKey,
             TEXT("DisableImmersiveContextMenu"),
@@ -9031,6 +9041,16 @@ void PatchExplorer_UpdateWindowAccentProperties()
 #pragma endregion
 
 
+#pragma region "Revert legacy copy dialog"
+BOOL(*SHELL32_CanDisplayWin8CopyDialogFunc)();
+BOOL SHELL32_CanDisplayWin8CopyDialogHook()
+{
+    if (bLegacyFileTransferDialog) return FALSE;
+    return SHELL32_CanDisplayWin8CopyDialogFunc();
+}
+#pragma endregion
+
+
 DWORD InjectBasicFunctions(BOOL bIsExplorer, BOOL bInstall)
 {
     //Sleep(150);
@@ -9901,6 +9921,12 @@ DWORD Inject(BOOL bIsExplorer)
     printf("Setup explorerframe functions done\n");
 
 
+    HANDLE hWindowsStorage = LoadLibraryW(L"windows.storage.dll");
+    SHELL32_CanDisplayWin8CopyDialogFunc = GetProcAddress(hShell32, "SHELL32_CanDisplayWin8CopyDialog");
+    if (SHELL32_CanDisplayWin8CopyDialogFunc) VnPatchDelayIAT(hWindowsStorage, "ext-ms-win-shell-exports-internal-l1-1-0.dll", "SHELL32_CanDisplayWin8CopyDialog", SHELL32_CanDisplayWin8CopyDialogHook);
+    printf("Setup windows.storage functions done\n");
+
+
     if (IsWindows11())
     {
         HANDLE hInputSwitch = LoadLibraryW(L"InputSwitch.dll");
diff --git a/ExplorerPatcher/settings.reg b/ExplorerPatcher/settings.reg
index 59f3d34..d7f9d65 100644
--- a/ExplorerPatcher/settings.reg
+++ b/ExplorerPatcher/settings.reg
@@ -162,6 +162,9 @@
 ;d Disable the Windows 11 context menu *
 @=""
 [HKEY_CURRENT_USER\Software\ExplorerPatcher]
+;b Always use legacy file transfer dialog
+"LegacyFileTransferDialog"=dword:00000000
+[HKEY_CURRENT_USER\Software\ExplorerPatcher]
 ;b Use classic drive groupings in This PC
 "UseClassicDriveGrouping"=dword:00000000
 [HKEY_CURRENT_USER\Software\ExplorerPatcher]
diff --git a/ExplorerPatcher/settings10.reg b/ExplorerPatcher/settings10.reg
index b151429..c944c8e 100644
--- a/ExplorerPatcher/settings10.reg
+++ b/ExplorerPatcher/settings10.reg
@@ -145,6 +145,9 @@
 ;b Register as shell extension
 ;"Virtualized_{D17F1E1A-5919-4427-8F89-A1A8503CA3EB}_RegisterAsShellExtension"=dword:00000000
 [HKEY_CURRENT_USER\Software\ExplorerPatcher]
+;b Always use legacy file transfer dialog
+"LegacyFileTransferDialog"=dword:00000000
+[HKEY_CURRENT_USER\Software\ExplorerPatcher]
 ;b Use classic drive groupings in This PC
 "UseClassicDriveGrouping"=dword:00000000
 [HKEY_CURRENT_USER\Software\ExplorerPatcher]