Classic Theme Windows: merge classic file picker, fixup dwm disabler

README.md

@@ -9,7 +9,9 @@ Based on [SimpleClassicTheme.FileExplorerHook](https://github.com/AEAEAEAE4343/S
 ## Classic Theme Windows
 Forces Classic Theme on all Windows
 
-Originally written by WinClassic user Travis. ~~Added DWM disabler from BasicThemer2 for classic titlebars.~~ Built-in BasicThemer2 support needs to be reworked.
+Originally written by WinClassic user Travis. Added DWM disabler from BasicThemer2 for classic titlebars and Classic File Picker.
 
-## Classic File Picker
+## ~~Classic File Picker~~
-Restores pre-Vista file picker. Requires Classic Theme Windows mod or else Windows just upgrades the dialog.
+~~Restores pre-Vista file picker. Requires Classic Theme Windows mod or else Windows just upgrades the dialog.~~
+
+Merged into Classic Theme Windows since its required to work anyways.

classic-theme-windows.wh.cpp

@@ -2,7 +2,7 @@
 // @id              classic-theme-windows
 // @name            Classic Theme Windows
 // @description     Forces Classic Theme on all Windows
-// @version         0.2
+// @version         0.3
 // @author          Travis, Cynosphere
 // @include         *
 // @exclude         wininit.exe
@@ -30,7 +30,7 @@
 // @exclude         PhoneExperienceHost.exe
 // @exclude         SecurityHealthTray.exe
 // @exclude         Window Detective.exe
-// @compilerOptions -luxtheme -ldwmapi
+// @compilerOptions -luxtheme -ldwmapi -lole32 -lcomdlg32
 // ==/WindhawkMod==
 
 // ==WindhawkModReadme==
@@ -44,8 +44,10 @@ Forces Classic Theme on all Windows
 #include <uxtheme.h>
 #include <dwmapi.h>
 
+DWORD thisPid = -1;
+
 // BasicThemer2 reimplementation to render classic titlebars
-/*static const int DisableDWM = DWMNCRP_DISABLED;
+static const int DisableDWM = DWMNCRP_DISABLED;
 static const int EnableDWM = DWMNCRP_ENABLED;
 
 void BasicThemerEnable(HWND hwnd) {
@@ -60,7 +62,13 @@ CreateWindowExW_t CreateWindowExW_Orig;
 HWND WINAPI CreateWindowExW_Hook(DWORD dwExStyle,LPCWSTR lpClassName,LPCWSTR lpWindowName,DWORD dwStyle,int X,int Y,int nWidth,int nHeight,HWND hWndParent,HMENU hMenu,HINSTANCE hInstance,LPVOID lpParam) {
     HWND res = CreateWindowExW_Orig(dwExStyle,lpClassName,lpWindowName,dwStyle,X,Y,nWidth,nHeight,hWndParent,hMenu,hInstance,lpParam);
 
-    BasicThemerEnable(res);
+    if (thisPid != -1) {
+        DWORD targetPid;
+        GetWindowThreadProcessId(res, &targetPid);
+        if (targetPid == thisPid) {
+            BasicThemerEnable(res);
+        }
+    }
 
     return res;
 }
@@ -69,7 +77,13 @@ CreateWindowExA_t CreateWindowExA_Orig;
 HWND WINAPI CreateWindowExA_Hook(DWORD dwExStyle,LPCSTR lpClassName,LPCSTR lpWindowName,DWORD dwStyle,int X,int Y,int nWidth,int nHeight,HWND hWndParent,HMENU hMenu,HINSTANCE hInstance,LPVOID lpParam) {
     HWND res = CreateWindowExA_Orig(dwExStyle,lpClassName,lpWindowName,dwStyle,X,Y,nWidth,nHeight,hWndParent,hMenu,hInstance,lpParam);
 
-    BasicThemerEnable(res);
+    if (thisPid != -1) {
+        DWORD targetPid;
+        GetWindowThreadProcessId(res, &targetPid);
+        if (targetPid == thisPid) {
+            BasicThemerEnable(res);
+        }
+    }
 
     return res;
 }
@@ -85,15 +99,42 @@ BOOL CALLBACK DisableBasicThemerForAll(HWND hWnd, LPARAM lParam) {
         BasicThemerDisable(hWnd);
 
     return TRUE;
-}*/
+}
 
-// Windhawk function
+// File picker
+template<class S>
+CLSID CreateGUID(const S& hexString)
+{
+    CLSID clsid;
+    CLSIDFromString(hexString, &clsid);
+
+    return clsid;
+}
+
+const CLSID CLSID_FileOpenDialog = CreateGUID(L"{DC1C5A9C-E88A-4dde-A5A1-60F82A20AEF7}");
+const CLSID CLSID_FileOpenDialogLegacy = CreateGUID(L"{725F645B-EAED-4fc5-B1C5-D9AD0ACCBA5E}");
+const CLSID CLSID_FileSaveDialog = CreateGUID(L"{c0b4e2f3-ba21-4773-8dba-335ec946eb8b}");
+const CLSID CLSID_FileSaveDialogLegacy = CreateGUID(L"{AF02484C-A0A9-4669-9051-058AB12B9195}");
+
+using CoCreateInstance_t = decltype(&CoCreateInstance);
+CoCreateInstance_t CoCreateInstance_Original;
+HRESULT WINAPI CoCreateInstance_Hook(REFCLSID rclsid, LPUNKNOWN pUnkOuter, DWORD dwClsContext, REFIID riid, LPVOID *ppv) {
+    if (rclsid == CLSID_FileOpenDialog) {
+        return CoCreateInstance_Original(CLSID_FileOpenDialogLegacy, pUnkOuter, dwClsContext, riid, ppv);
+    } else if (rclsid == CLSID_FileSaveDialog) {
+        return CoCreateInstance_Original(CLSID_FileSaveDialogLegacy, pUnkOuter, dwClsContext, riid, ppv);
+    }
+
+    return CoCreateInstance_Original(rclsid, pUnkOuter, dwClsContext, riid, ppv);
+}
+
+// Windhawk functions
 BOOL Wh_ModInit() {
     // Enable classic theme
     SetThemeAppProperties(0);
 
     // BasicThemer hooks
-    /*Wh_SetFunctionHook((void*)CreateWindowExW,
+    Wh_SetFunctionHook((void*)CreateWindowExW,
                        (void*)CreateWindowExW_Hook,
                        (void**)&CreateWindowExW_Orig);
     Wh_SetFunctionHook((void*)CreateWindowExA,
@@ -101,8 +142,12 @@ BOOL Wh_ModInit() {
                        (void**)&CreateWindowExA_Orig);
 
     // Iterate every window to enable BasicThemer
-    DWORD thisPid = GetProcessIdOfThread(GetCurrentThread());
+    thisPid = GetProcessIdOfThread(GetCurrentThread());
-    EnumWindows(EnableBasicThemerForAll, thisPid);*/
+    EnumWindows(EnableBasicThemerForAll, thisPid);
+
+    // File picker
+    Wh_SetFunctionHook((void*)CoCreateInstance, (void*)CoCreateInstance_Hook,
+                       (void**)&CoCreateInstance_Original);
 
     return TRUE;
 }
@@ -114,6 +159,6 @@ void Wh_ModUninit() {
     }
 
     // Iterate every window to disable BasicThemer
-    /*DWORD thisPid = GetProcessIdOfThread(GetCurrentThread());
+    thisPid = GetProcessIdOfThread(GetCurrentThread());
-    EnumWindows(DisableBasicThemerForAll, thisPid);*/
+    EnumWindows(DisableBasicThemerForAll, thisPid);
 }