hhctrl.ocx: Call PostQuitMessage only in hh.exe process.

dlls/hhctrl.ocx/help.c

@@ -631,7 +631,8 @@ static LRESULT CALLBACK Help_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPA
         ReleaseHelpViewer((HHInfo *)GetWindowLongPtrW(hWnd, GWLP_USERDATA));
         return 0;
     case WM_DESTROY:
-        PostQuitMessage(0);
+        if(hh_process)
+            PostQuitMessage(0);
         break;
 
     default:

dlls/hhctrl.ocx/hhctrl.c

@@ -26,6 +26,7 @@
 WINE_DEFAULT_DEBUG_CHANNEL(htmlhelp);
 
 HINSTANCE hhctrl_hinstance;
+BOOL hh_process;
 
 BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, LPVOID lpvReserved)
 {
@@ -144,6 +145,8 @@ int WINAPI doWinMain(HINSTANCE hInstance, LPSTR szCmdLine)
     HHInfo *info;
     LPWSTR filename = strdupAtoW(szCmdLine);
 
+    hh_process = TRUE;
+
     /* FIXME: Check szCmdLine for bad arguments */
     info = CreateHelpViewer(filename);
     hhctrl_free(filename);

dlls/hhctrl.ocx/hhctrl.h

@@ -142,5 +142,6 @@ static inline LPWSTR strdupAtoW(LPCSTR str)
 }
 
 extern HINSTANCE hhctrl_hinstance;
+extern BOOL hh_process;
 
 #endif