Start11: Fix "Disable recommended section" to work at 125% display scaling

ExplorerPatcher/lvt.c

@@ -517,6 +517,79 @@ void LVT_StartUI_EnableRoundedCorners(HWND hWnd, DWORD dwReceipe, DWORD dwPos, H
     }
 }
 
+void LVT_StartDocked_120DPIHack(int maxHeight)
+{
+    HRESULT hr = S_OK;
+    Windows_UI_Xaml_IDependencyObject* pRootDependencyObject = NULL;
+    if (SUCCEEDED(hr))
+    {
+        HSTRING_HEADER hshWindowStatics;
+        HSTRING hsWindowStatics = NULL;
+        hr = WindowsCreateStringReference(L"Windows.UI.Xaml.Window", 22, &hshWindowStatics, &hsWindowStatics);
+        if (SUCCEEDED(hr) && hsWindowStatics)
+        {
+            Windows_UI_Xaml_IWindowStatics* pWindowStatics = NULL;
+            hr = RoGetActivationFactory(hsWindowStatics, &IID_Windows_UI_Xaml_IWindowStatics, &pWindowStatics);
+            if (SUCCEEDED(hr))
+            {
+                Windows_UI_Xaml_IWindow* pWindow = NULL;
+                hr = pWindowStatics->lpVtbl->get_Current(pWindowStatics, &pWindow);
+                if (SUCCEEDED(hr))
+                {
+                    IInspectable* pUIElement = NULL;
+                    hr = pWindow->lpVtbl->get_Content(pWindow, &pUIElement);
+                    if (SUCCEEDED(hr))
+                    {
+                        hr = pUIElement->lpVtbl->QueryInterface(pUIElement, &IID_Windows_UI_Xaml_IDependencyObject, &pRootDependencyObject);
+
+                        pUIElement->lpVtbl->Release(pUIElement);
+                    }
+                    pWindow->lpVtbl->Release(pWindow);
+                }
+                pWindowStatics->lpVtbl->Release(pWindowStatics);
+            }
+            WindowsDeleteString(hsWindowStatics);
+        }
+    }
+    if (pRootDependencyObject)
+    {
+        HSTRING_HEADER hshVisualTreeHelperStatics;
+        HSTRING hsVisualTreeHelperStatics = NULL;
+        hr = WindowsCreateStringReference(L"Windows.UI.Xaml.Media.VisualTreeHelper", 38, &hshVisualTreeHelperStatics, &hsVisualTreeHelperStatics);
+        if (SUCCEEDED(hr) && hsVisualTreeHelperStatics)
+        {
+            Windows_UI_Xaml_IVisualTreeHelperStatics* pVisualTreeHelperStatics = NULL;
+            hr = RoGetActivationFactory(hsVisualTreeHelperStatics, &IID_Windows_UI_Xaml_IVisualTreeHelperStatics, &pVisualTreeHelperStatics);
+            if (SUCCEEDED(hr))
+            {
+                Windows_UI_Xaml_IDependencyObject* pStartSizingFrame = LVT_FindChildByClassName(pRootDependencyObject, pVisualTreeHelperStatics, L"StartDocked.StartSizingFrame", NULL);
+                if (pStartSizingFrame)
+                {
+                    Windows_UI_Xaml_IUIElement* pIUIElement = NULL;
+                    pStartSizingFrame->lpVtbl->QueryInterface(pStartSizingFrame, &IID_Windows_UI_Xaml_IUIElement, &pIUIElement);
+                    if (pIUIElement)
+                    {
+                        Windows_UI_Xaml_IFrameworkElement* pFrameworkElement = NULL;
+                        pStartSizingFrame->lpVtbl->QueryInterface(pStartSizingFrame, &IID_Windows_UI_Xaml_IFrameworkElement, &pFrameworkElement);
+                        if (pFrameworkElement)
+                        {
+                            pIUIElement->lpVtbl->put_Visibility(pIUIElement, Windows_UI_Xaml_Visibility_Collapsed);
+                            pFrameworkElement->lpVtbl->put_MaxHeight(pFrameworkElement, maxHeight);
+                            pIUIElement->lpVtbl->put_Visibility(pIUIElement, Windows_UI_Xaml_Visibility_Visible);
+                            pFrameworkElement->lpVtbl->Release(pFrameworkElement);
+                        }
+                        pIUIElement->lpVtbl->Release(pIUIElement);
+                    }
+                    pStartSizingFrame->lpVtbl->Release(pStartSizingFrame);
+                }
+                pVisualTreeHelperStatics->lpVtbl->Release(pVisualTreeHelperStatics);
+            }
+            WindowsDeleteString(hsVisualTreeHelperStatics);
+        }
+        pRootDependencyObject->lpVtbl->Release(pRootDependencyObject);
+    }
+}
+
 // Reference: https://www.reddit.com/r/Windows11/comments/p1ksou/this_is_not_a_concept_microsoft_in_windows_11/
 void LVT_StartDocked_DisableRecommendedSection(HWND hWnd, BOOL bApply, RECT* rect)
 {
@@ -604,6 +677,20 @@ void LVT_StartDocked_DisableRecommendedSection(HWND hWnd, BOOL bApply, RECT* rec
                     SetRect(&rc, drc.Left, drc.Top, drc.Right, drc.Bottom);
                     SetRect(&rc, MulDiv(rc.left, dpi, 96), MulDiv(rc.top, dpi, 96), MulDiv(rc.right, dpi, 96), MulDiv(rc.bottom, dpi, 96));
                     *rect = rc;
+                    if (bApply && dpi == 120)
+                    {
+                        HANDLE hRealThreadHandle = NULL;
+                        DuplicateHandle(GetCurrentProcess(), GetCurrentThread(), GetCurrentProcess(), &hRealThreadHandle, THREAD_SET_CONTEXT, FALSE, 0);
+                        if (hRealThreadHandle)
+                        {
+                            QueueUserAPC(LVT_StartDocked_120DPIHack, hRealThreadHandle, 826);
+                            CloseHandle(hRealThreadHandle);
+                        }
+                    }
+                    else if (pFrameworkElement)
+                    {
+                        pFrameworkElement->lpVtbl->put_MaxHeight(pFrameworkElement, 726.0);
+                    }
                     if (pFrameworkElement)
                     {
                         pFrameworkElement->lpVtbl->Release(pFrameworkElement);

ExplorerPatcher/lvt.h

@@ -6,6 +6,7 @@
 #include <roapi.h>
 #include <winstring.h>
 #include <stdio.h>
+#include <Shlwapi.h>
 
 #define LVT_LOC_NONE 0
 #define LVT_LOC_BOTTOMLEFT 1
@@ -460,10 +461,12 @@ typedef struct Windows_UI_Xaml_IFrameworkElement_Vtbl
         __RPC__in Windows_UI_Xaml_IFrameworkElement* This);
 
     HRESULT(STDMETHODCALLTYPE* get_MaxHeight)(
-        __RPC__in Windows_UI_Xaml_IFrameworkElement* This);
+        __RPC__in Windows_UI_Xaml_IFrameworkElement* This,
+        /* [out] */ __RPC__out DOUBLE* value);
 
     HRESULT(STDMETHODCALLTYPE* put_MaxHeight)(
-        __RPC__in Windows_UI_Xaml_IFrameworkElement* This);
+        __RPC__in Windows_UI_Xaml_IFrameworkElement* This,
+        /* [in] */ __RPC__in DOUBLE value);
 
     HRESULT(STDMETHODCALLTYPE* get_HorizontalAlignment)(
         __RPC__in Windows_UI_Xaml_IFrameworkElement* This);