Option to disable rounded corners for windows

.gitmodules

@@ -10,3 +10,6 @@
 [submodule "libs/sws"]
 	path = libs/sws
 	url = https://github.com/valinet/sws
+[submodule "ep_dwm"]
+	path = ep_dwm
+	url = https://github.com/valinet/ep_dwm

CHANGELOG.md

@@ -13,6 +13,7 @@ Tested on OS build 22000.434.
 * Support for screen readers in the Properties window (#627) (.1)
 * Option to disable `Office` hotkeys (`Ctrl`+`Alt`+`Shift`+`Windows` key combinations) (#661) (.4)
 * Simple Window Switcher can switch applications instead of windows (#665) (.5, .6)
+* Option to disable rounded corners for windows (.7)
 
 #### Feature enhancements
 

ExplorerPatcher/ExplorerPatcher.vcxproj

@@ -201,6 +201,12 @@
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="..\ep_dwm\ep_dwm\ep_dwm.c">
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">EP_DWM_NO_DLLMAIN;EP_DWM_NO_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">EP_DWM_NO_DLLMAIN;EP_DWM_NO_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">EP_DWM_NO_DLLMAIN;EP_DWM_NO_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">EP_DWM_NO_DLLMAIN;EP_DWM_NO_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
     <ClCompile Include="..\libs\sws\SimpleWindowSwitcher\sws_error.c">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
@@ -292,6 +298,7 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\ep_dwm\ep_dwm\ep_dwm.h" />
     <ClInclude Include="..\libs\sws\SimpleWindowSwitcher\sws_def.h" />
     <ClInclude Include="..\libs\sws\SimpleWindowSwitcher\sws_error.h" />
     <ClInclude Include="..\libs\sws\SimpleWindowSwitcher\sws_IconPainter.h" />

ExplorerPatcher/ExplorerPatcher.vcxproj.filters

@@ -28,6 +28,12 @@
     <Filter Include="Settings">
       <UniqueIdentifier>{190d08ad-4a1d-4b58-81a1-6403eeb3cd2a}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Source Files\ep_dwm">
+      <UniqueIdentifier>{50a6ac61-12c4-460e-a9d1-cdaf9bf7e7b1}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\ep_dwm">
+      <UniqueIdentifier>{fd25654b-7123-401a-86c7-90413d703f30}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="resource.h">
@@ -123,6 +129,9 @@
     <ClInclude Include="..\libs\sws\SimpleWindowSwitcher\sws_IconPainter.h">
       <Filter>Header Files\sws</Filter>
     </ClInclude>
+    <ClInclude Include="..\libs\ep_dwm\ep_dwm\ep_dwm.h">
+      <Filter>Header Files\ep_dwm</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="ExplorerPatcher.rc">
@@ -202,6 +211,9 @@
     <ClCompile Include="..\libs\sws\SimpleWindowSwitcher\sws_tshwnd.c">
       <Filter>Source Files\sws</Filter>
     </ClCompile>
+    <ClCompile Include="..\libs\ep_dwm\ep_dwm\ep_dwm.c">
+      <Filter>Source Files\ep_dwm</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="settings.reg">

ExplorerPatcher/GUI.c

@@ -317,6 +317,100 @@ LSTATUS GUI_RegSetValueExW(
         );
         return RegSetValueExW(hKey, L"Start_MaximumFrequentApps", 0, dwType, lpData, cbData);
     }
+    else if (!wcscmp(lpValueName, L"Virtualized_" _T(EP_CLSID) L"_DisableRoundedCorners"))
+    {
+        WCHAR wszPath[MAX_PATH];
+        GetSystemDirectoryW(wszPath, MAX_PATH);
+        wcscat_s(wszPath, MAX_PATH, L"\\cmd.exe");
+
+        WCHAR wszSCPath[MAX_PATH];
+        GetSystemDirectoryW(wszSCPath, MAX_PATH);
+        wcscat_s(wszSCPath, MAX_PATH, L"\\sc.exe");
+
+        WCHAR wszRundll32[MAX_PATH];
+        GetSystemDirectoryW(wszRundll32, MAX_PATH);
+        wcscat_s(wszRundll32, MAX_PATH, L"\\rundll32.exe");
+
+        WCHAR wszEP[MAX_PATH];
+        GetWindowsDirectoryW(wszEP, MAX_PATH);
+        wcscat_s(wszEP, MAX_PATH, L"\\dxgi.dll");
+
+        WCHAR wszTaskkill[MAX_PATH];
+        GetSystemDirectoryW(wszTaskkill, MAX_PATH);
+        wcscat_s(wszTaskkill, MAX_PATH, L"\\taskkill.exe");
+
+        WCHAR wszArgumentsRegister[MAX_PATH * 10];
+        swprintf_s(
+            wszArgumentsRegister,
+            MAX_PATH * 10, 
+            L"/c \""
+            L"\"%s\" create ep_dwm_" _T(EP_CLSID_LITE) L" binPath= \"\\\"%s\\\" \\\"%s\\\",ZZDWM\" DisplayName= \"ExplorerPatcher Desktop Window Manager Service\" start= auto & "
+            L"\"%s\" description ep_dwm_" _T(EP_CLSID_LITE) L" \"Implements functionality to disable rounded corners for windows\" & "
+            L"\"%s\" start ep_dwm_" _T(EP_CLSID_LITE)
+            L"\"",
+            wszSCPath,
+            wszRundll32, 
+            wszEP,
+            wszSCPath,
+            wszSCPath
+        );
+        WCHAR wszArgumentsUnRegister[MAX_PATH * 10];
+        swprintf_s(
+            wszArgumentsUnRegister,
+            MAX_PATH * 10,
+            L"/c \""
+            L"\"%s\" stop ep_dwm_" _T(EP_CLSID_LITE) L" & "
+            L"\"%s\" delete ep_dwm_" _T(EP_CLSID_LITE) L" & "
+            L"\"",
+            wszSCPath,
+            wszSCPath
+        );
+        wprintf(L"%s\n", wszArgumentsRegister);
+
+        BOOL bAreRoundedCornersDisabled = FALSE;
+        HANDLE h_exists = CreateEventW(NULL, FALSE, FALSE, L"Global\\ep_dwm_" _T(EP_CLSID));
+        if (h_exists)
+        {
+            if (GetLastError() == ERROR_ALREADY_EXISTS)
+            {
+                bAreRoundedCornersDisabled = TRUE;
+            }
+            else
+            {
+                bAreRoundedCornersDisabled = FALSE;
+            }
+            CloseHandle(h_exists);
+        }
+        else
+        {
+            if (GetLastError() == ERROR_ACCESS_DENIED)
+            {
+                bAreRoundedCornersDisabled = TRUE;
+            }
+            else
+            {
+                bAreRoundedCornersDisabled = FALSE;
+            }
+        }
+        SHELLEXECUTEINFO ShExecInfo = { 0 };
+        ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
+        ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
+        ShExecInfo.hwnd = NULL;
+        ShExecInfo.lpVerb = L"runas";
+        ShExecInfo.lpFile = wszPath;
+        ShExecInfo.lpParameters = !bAreRoundedCornersDisabled ? wszArgumentsRegister : wszArgumentsUnRegister;
+        ShExecInfo.lpDirectory = NULL;
+        ShExecInfo.nShow = SW_HIDE;
+        ShExecInfo.hInstApp = NULL;
+        if (ShellExecuteExW(&ShExecInfo) && ShExecInfo.hProcess)
+        {
+            WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
+            DWORD dwExitCode = 0;
+            GetExitCodeProcess(ShExecInfo.hProcess, &dwExitCode);
+            CloseHandle(ShExecInfo.hProcess);
+        }
+        return ERROR_SUCCESS;
+    }
 }
 
 LSTATUS GUI_RegQueryValueExW(
@@ -417,6 +511,34 @@ LSTATUS GUI_RegQueryValueExW(
     {
         return RegQueryValueExW(hKey, L"Start_MaximumFrequentApps", lpReserved, lpType, lpData, lpcbData);
     }
+    else if (!wcscmp(lpValueName, L"Virtualized_" _T(EP_CLSID) L"_DisableRoundedCorners"))
+    {
+        HANDLE h_exists = CreateEventW(NULL, FALSE, FALSE, L"Global\\ep_dwm_" _T(EP_CLSID));
+        if (h_exists)
+        {
+            if (GetLastError() == ERROR_ALREADY_EXISTS)
+            {
+                *(DWORD*)lpData = 1;
+            }
+            else
+            {
+                *(DWORD*)lpData = 0;
+            }
+            CloseHandle(h_exists);
+        }
+        else
+        {
+            if (GetLastError() == ERROR_ACCESS_DENIED)
+            {
+                *(DWORD*)lpData = 1;
+            }
+            else
+            {
+                *(DWORD*)lpData = 0;
+            }
+        }
+        return ERROR_SUCCESS;
+    }
 }
 
 static HRESULT GUI_AboutProc(
@@ -1185,8 +1307,34 @@ static BOOL GUI_Build(HDC hDC, HWND hwnd, POINT pt)
                                     {
                                         CloseHandle(hFile);
 
+                                        BOOL bAreRoundedCornersDisabled = FALSE;
+                                        HANDLE h_exists = CreateEventW(NULL, FALSE, FALSE, L"Global\\ep_dwm_" _T(EP_CLSID));
+                                        if (h_exists)
+                                        {
+                                            if (GetLastError() == ERROR_ALREADY_EXISTS)
+                                            {
+                                                bAreRoundedCornersDisabled = TRUE;
+                                            }
+                                            else
+                                            {
+                                                bAreRoundedCornersDisabled = FALSE;
+                                            }
+                                            CloseHandle(h_exists);
+                                        }
+                                        else
+                                        {
+                                            if (GetLastError() == ERROR_ACCESS_DENIED)
+                                            {
+                                                bAreRoundedCornersDisabled = TRUE;
+                                            }
+                                            else
+                                            {
+                                                bAreRoundedCornersDisabled = FALSE;
+                                            }
+                                        }
+
                                         DWORD dwError = 1;
-                                        if (hKey == NULL || hKey == INVALID_HANDLE_VALUE)
+                                        if ((hKey == NULL || hKey == INVALID_HANDLE_VALUE) && !bAreRoundedCornersDisabled)
                                         {
                                             dwError = 0;
                                             // https://stackoverflow.com/questions/50298722/win32-launching-a-highestavailable-child-process-as-a-normal-user-process
@@ -1256,13 +1404,45 @@ static BOOL GUI_Build(HDC hDC, HWND hwnd, POINT pt)
                                         }
                                         if (dwError)
                                         {
+                                            WCHAR wszCMD[MAX_PATH];
+                                            GetSystemDirectoryW(wszCMD, MAX_PATH);
+                                            wcscat_s(wszCMD, MAX_PATH, L"\\cmd.exe");
+
+                                            WCHAR wszRegedit[MAX_PATH];
+                                            GetWindowsDirectoryW(wszRegedit, MAX_PATH);
+                                            wcscat_s(wszRegedit, MAX_PATH, L"\\regedit.exe");
+
+                                            WCHAR wszSCPath[MAX_PATH];
+                                            GetSystemDirectoryW(wszSCPath, MAX_PATH);
+                                            wcscat_s(wszSCPath, MAX_PATH, L"\\sc.exe");
+
+                                            WCHAR wszTaskkill[MAX_PATH];
+                                            GetSystemDirectoryW(wszTaskkill, MAX_PATH);
+                                            wcscat_s(wszTaskkill, MAX_PATH, L"\\taskkill.exe");
+
+                                            WCHAR wszArguments[MAX_PATH * 10];
+                                            swprintf_s(
+                                                wszArguments,
+                                                MAX_PATH * 10,
+                                                L"/c \""
+                                                L"\"%s\" \"%s\" & "
+                                                L"\"%s\" stop ep_dwm_" _T(EP_CLSID_LITE) L" & "
+                                                L"\"%s\" delete ep_dwm_" _T(EP_CLSID_LITE)
+                                                L"\"",
+                                                wszRegedit,
+                                                wszPath,
+                                                wszSCPath,
+                                                wszSCPath
+                                            );
+                                            wprintf(L"%s\n", wszArguments);
+
                                             SHELLEXECUTEINFO ShExecInfo = { 0 };
                                             ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
                                             ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
                                             ShExecInfo.hwnd = NULL;
-                                            ShExecInfo.lpVerb = NULL;
+                                            ShExecInfo.lpVerb = L"runas";
-                                            ShExecInfo.lpFile = wszPath;
+                                            ShExecInfo.lpFile = wszCMD;
-                                            ShExecInfo.lpParameters = L"";
+                                            ShExecInfo.lpParameters = wszArguments;
                                             ShExecInfo.lpDirectory = NULL;
                                             ShExecInfo.nShow = SW_SHOW;
                                             ShExecInfo.hInstApp = NULL;

ExplorerPatcher/dllmain.c

@@ -161,7 +161,11 @@ HRESULT WINAPI _DllGetClassObject(
     REFIID   riid,
     LPVOID* ppv
 );
-
+BOOL ep_dwm_StartService(LPWSTR wszServiceName, LPWSTR wszEventName);
+__declspec(dllexport) int ZZDWM(HWND hWnd, HINSTANCE hInstance, LPSTR lpszCmdLine, int nCmdShow)
+{
+    ep_dwm_StartService(L"ep_dwm_Service_" _T(EP_CLSID), L"Global\\ep_dwm_" _T(EP_CLSID));
+}
 
 #pragma region "Updates"
 #ifdef _WIN64

ExplorerPatcher/settings.reg

@@ -364,6 +364,8 @@
 "NoMenuAccelerator"=dword:00000000
 ;b Disable Office hotkeys (Ctrl+Alt+Shift+Windows key combinations) *
 "DisableOfficeHotkeys"=dword:00000000
+;b Disable rounded corners for application windows
+"Virtualized_{D17F1E1A-5919-4427-8F89-A1A8503CA3EB}_DisableRoundedCorners"=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

ExplorerPatcher/utility.h

@@ -28,6 +28,7 @@
 #define PRODUCT_NAME "ExplorerPatcher"
 #define PRODUCT_PUBLISHER "VALINET Solutions SRL"
 #define APP_RELATIVE_PATH "\\" PRODUCT_NAME
+#define EP_CLSID_LITE "D17F1E1A-5919-4427-8F89-A1A8503CA3EB"
 #define EP_CLSID "{D17F1E1A-5919-4427-8F89-A1A8503CA3EB}"
 #define DOSMODE_OFFSET 78
 #define SETUP_UTILITY_NAME "ep_setup.exe"

ep_dwm

@@ -0,0 +1 @@
+Subproject commit e058f2e8cc13dc094ba55f472a1ade969d260526

ep_setup/ep_setup.c

@@ -434,6 +434,27 @@ int WINAPI wWinMain(
             CloseHandle(sei.hProcess);
         }
 
+        WCHAR wszSCPath[MAX_PATH];
+        GetSystemDirectoryW(wszSCPath, MAX_PATH);
+        wcscat_s(wszSCPath, MAX_PATH, L"\\sc.exe");
+        SHELLEXECUTEINFO ShExecInfo = { 0 };
+        ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
+        ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
+        ShExecInfo.hwnd = NULL;
+        ShExecInfo.lpVerb = L"runas";
+        ShExecInfo.lpFile = wszSCPath;
+        ShExecInfo.lpParameters = L"stop ep_dwm_" _T(EP_CLSID_LITE);
+        ShExecInfo.lpDirectory = NULL;
+        ShExecInfo.nShow = SW_HIDE;
+        ShExecInfo.hInstApp = NULL;
+        if (ShellExecuteExW(&ShExecInfo) && ShExecInfo.hProcess)
+        {
+            WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
+            DWORD dwExitCode = 0;
+            GetExitCodeProcess(ShExecInfo.hProcess, &dwExitCode);
+            CloseHandle(ShExecInfo.hProcess);
+        }
+
         HWND hWnd = FindWindowW(L"ExplorerPatcher_GUI_" _T(EP_CLSID), NULL);
         if (hWnd)
         {
@@ -591,6 +612,14 @@ int WINAPI wWinMain(
             wcscat_s(wszPath, MAX_PATH, _T(APP_RELATIVE_PATH) L"\\" _T(SETUP_UTILITY_NAME) L"\" /uninstall");
             bOk = SetupUninstallEntry(bInstall, wszPath);
         }
+        ShExecInfo.lpParameters = bInstall ? L"start ep_dwm_" _T(EP_CLSID_LITE) : L"delete ep_dwm_" _T(EP_CLSID_LITE);
+        if (ShellExecuteExW(&ShExecInfo) && ShExecInfo.hProcess)
+        {
+            WaitForSingleObject(ShExecInfo.hProcess, INFINITE);
+            DWORD dwExitCode = 0;
+            GetExitCodeProcess(ShExecInfo.hProcess, &dwExitCode);
+            CloseHandle(ShExecInfo.hProcess);
+        }
 
         if (bOk)
         {

version.h

@@ -1,7 +1,7 @@
 #define VER_MAJOR 22000
 #define VER_MINOR 434
 #define VER_BUILD_HI    41
-#define VER_BUILD_LO 6
+#define VER_BUILD_LO 7
 #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", "22000.434.41.6"
+#define VER_FILE_STRING VALUE "FileVersion", "22000.434.41.7"
-#define VER_PRODUCT_STRING VALUE "ProductVersion", "22000.434.41.6"
+#define VER_PRODUCT_STRING VALUE "ProductVersion", "22000.434.41.7"