Fixes #63, finally properly implements #3

ExplorerPatcher/StartMenu.h

@@ -55,13 +55,13 @@ typedef struct IImmersiveMonitorServiceVtbl
     ULONG(STDMETHODCALLTYPE* Release)(
         IImmersiveMonitorService* This);
 
-    HRESULT(STDMETHODCALLTYPE* method3)(
+    HRESULT(STDMETHODCALLTYPE* GetCount)(
         IImmersiveMonitorService* This);
 
-    HRESULT(STDMETHODCALLTYPE* method4)(
+    HRESULT(STDMETHODCALLTYPE* GetConnectedCount)(
         IImmersiveMonitorService* This);
 
-    HRESULT(STDMETHODCALLTYPE* method5)(
+    HRESULT(STDMETHODCALLTYPE* GetAt)(
         IImmersiveMonitorService* This);
 
     HRESULT(STDMETHODCALLTYPE* GetFromHandle)(
@@ -69,10 +69,10 @@ typedef struct IImmersiveMonitorServiceVtbl
         /* [in] */ HMONITOR hMonitor,
         _COM_Outptr_  IUnknown** ppvObject);
 
-    HRESULT(STDMETHODCALLTYPE* method6)(
+    HRESULT(STDMETHODCALLTYPE* GetFromIdentity)(
         IImmersiveMonitorService* This);
 
-    HRESULT(STDMETHODCALLTYPE* method7)(
+    HRESULT(STDMETHODCALLTYPE* GetImmersiveProxyMonitor)(
         IImmersiveMonitorService* This);
 
     HRESULT(STDMETHODCALLTYPE* QueryService)(
@@ -83,7 +83,7 @@ typedef struct IImmersiveMonitorServiceVtbl
         void** ppvObject
         );
 
-    HRESULT(STDMETHODCALLTYPE* method9)(
+    HRESULT(STDMETHODCALLTYPE* QueryServiceByIdentity)(
         IImmersiveMonitorService* This);
 
     HRESULT(STDMETHODCALLTYPE* QueryServiceFromWindow)(
@@ -94,6 +94,14 @@ typedef struct IImmersiveMonitorServiceVtbl
         void** ppvObject
         );
 
+    HRESULT(STDMETHODCALLTYPE* QueryServiceFromPoint)(
+        IImmersiveMonitorService* This,
+        POINT pt,
+        GUID* a3,
+        GUID* a4,
+        void** ppvObject
+        );
+
     END_INTERFACE
 } IImmersiveMonitorServiceVtbl;
 
@@ -160,6 +168,42 @@ interface IImmersiveLauncher10RS
     CONST_VTBL struct IImmersiveLauncher10RSVtbl* lpVtbl;
 };
 
+DEFINE_GUID(IID_ILauncherTipContextMenu,
+    0xb8c1db5f,
+    0xcbb3, 0x48bc, 0xaf, 0xd9,
+    0xce, 0x6b, 0x88, 0x0c, 0x79, 0xed
+);
+
+typedef interface ILauncherTipContextMenu ILauncherTipContextMenu;
+
+typedef struct ILauncherTipContextMenuVtbl
+{
+    BEGIN_INTERFACE
+
+        HRESULT(STDMETHODCALLTYPE* QueryInterface)(
+            ILauncherTipContextMenu* This,
+            /* [in] */ REFIID riid,
+            /* [annotation][iid_is][out] */
+            _COM_Outptr_  void** ppvObject);
+
+    ULONG(STDMETHODCALLTYPE* AddRef)(
+        ILauncherTipContextMenu* This);
+
+    ULONG(STDMETHODCALLTYPE* Release)(
+        ILauncherTipContextMenu* This);
+
+    HRESULT(STDMETHODCALLTYPE* ShowLauncherTipContextMenu)(
+        ILauncherTipContextMenu* This,
+        /* [in] */ POINT* pt);
+
+    END_INTERFACE
+} ILauncherTipContextMenuVtbl;
+
+interface ILauncherTipContextMenu
+{
+    CONST_VTBL struct ILauncherTipContextMenuVtbl* lpVtbl;
+};
+
 void OpenStartOnMonitor(HMONITOR monitor);
 
 // Slightly tweaked version of function available in Open Shell 

ExplorerPatcher/dllmain.c

@@ -1223,12 +1223,51 @@ LRESULT explorer_SendMessageW(HWND hWndx, UINT uMsg, WPARAM wParam, LPARAM lPara
                             if (hWnd)
                             {
                                 POINT pt = GetDefaultWinXPosition(FALSE, NULL, NULL, TRUE);
-                                PostMessage(
-                                    hWnd,
-                                    WM_CONTEXTMENU,
-                                    hWnd,
-                                    MAKELPARAM(pt.x, pt.y)
+                                // Finally implemented a variation of
+                                // https://github.com/valinet/ExplorerPatcher/issues/3
+                                // inspired by how the real Start button activates this menu
+                                // (CPearl::_GetLauncherTipContextMenu)
+                                // This also works when auto hide taskbar is on (#63)
+                                HRESULT hr = S_OK;
+                                IUnknown* pImmersiveShell = NULL;
+                                hr = CoCreateInstance(
+                                    &CLSID_ImmersiveShell,
+                                    NULL,
+                                    CLSCTX_INPROC_SERVER,
+                                    &IID_IServiceProvider,
+                                    &pImmersiveShell
                                 );
+                                if (SUCCEEDED(hr))
+                                {
+                                    IImmersiveMonitorService* pMonitorService = NULL;
+                                    IUnknown_QueryService(
+                                        pImmersiveShell,
+                                        &SID_IImmersiveMonitorService,
+                                        &IID_IImmersiveMonitorService,
+                                        &pMonitorService
+                                    );
+                                    if (pMonitorService)
+                                    {
+                                        ILauncherTipContextMenu* pMenu = NULL;
+                                        pMonitorService->lpVtbl->QueryServiceFromWindow(
+                                            pMonitorService,
+                                            hWnd,
+                                            &IID_ILauncherTipContextMenu,
+                                            &IID_ILauncherTipContextMenu,
+                                            &pMenu
+                                        );
+                                        if (pMenu)
+                                        {
+                                            pMenu->lpVtbl->ShowLauncherTipContextMenu(
+                                                pMenu,
+                                                &pt
+                                            );
+                                            pMenu->lpVtbl->Release(pMenu);
+                                        }
+                                        pMonitorService->lpVtbl->Release(pMonitorService);
+                                    }
+                                    pImmersiveShell->lpVtbl->Release(pImmersiveShell);
+                                }
                             }
                         }
                     }