Create lines-in-mmc.wh.cpp

mods/lines-in-mmc.wh.cpp

@@ -0,0 +1,43 @@
+// ==WindhawkMod==
+// @id              lines-in-mmc
+// @name            Lines in MMC and Device Manager
+// @description     Adds dotted lines to the TreeView in Microsoft Management Console and Device Manager
+// @version         1.0
+// @author          anixx
+// @github          https://github.com/Anixx
+// @include         mmc.exe
+// ==/WindhawkMod==
+
+// ==WindhawkModReadme==
+/*
+Adds dotted lines to the TreeView in Microsoft Management Console and Device Manager
+![Screenshot](https://i.imgur.com/3ZBR2HD.png)
+*/
+// ==/WindhawkModReadme==
+
+#include <commctrl.h>
+
+using CreateWindowExW_t = decltype(&CreateWindowExW);
+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) {
+
+    WCHAR wszClassName[256];
+    ZeroMemory(wszClassName, 256);
+
+    if ((((ULONG_PTR)lpClassName & ~(ULONG_PTR)0xffff) != 0) && !wcscmp(lpClassName, L"SysTreeView32")) {
+        GetClassNameW(hWndParent, wszClassName, 256);
+        if (!wcscmp(wszClassName, L"AfxOleControl42u") || !wcscmp(wszClassName, L"MMCViewWindow")) {
+            dwStyle |= TVS_HASLINES;
+        }
+    }
+
+    return CreateWindowExW_Orig(dwExStyle,lpClassName,lpWindowName,dwStyle,X,Y,nWidth,nHeight,hWndParent,hMenu,hInstance,lpParam);
+}
+
+BOOL Wh_ModInit(void)
+{
+        Wh_SetFunctionHook((void*)CreateWindowExW, (void*)CreateWindowExW_Hook, (void**)&CreateWindowExW_Orig);
+
+    return TRUE;
+}