ShellExtension/ClassFactory.cpp

   1 #include "DllMain.h"\r
   2 #include "ClassFactory.h"\r
   3 #include "ContextMenu.h"\r
   4 \r
   5 STDMETHODIMP CClassFactory::QueryInterface(REFIID riid, void **ppvObject)\r
   6 {\r
   7         *ppvObject = NULL;\r
   8 \r
   9         if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IClassFactory))\r
  10                 *ppvObject = static_cast<IClassFactory *>(this);\r
  11         else\r
  12                 return E_NOINTERFACE;\r
  13 \r
  14         AddRef();\r
  15         \r
  16         return S_OK;\r
  17 }\r
  18 \r
  19 STDMETHODIMP_(ULONG) CClassFactory::AddRef()\r
  20 {\r
  21         LockModule(TRUE);\r
  22 \r
  23         return 2;\r
  24 }\r
  25 \r
  26 STDMETHODIMP_(ULONG) CClassFactory::Release()\r
  27 {\r
  28         LockModule(FALSE);\r
  29 \r
  30         return 1;\r
  31 }\r
  32 \r
  33 STDMETHODIMP CClassFactory::CreateInstance(IUnknown *pUnkOuter, REFIID riid, void **ppvObject)\r
  34 {\r
  35         CContextMenu *p;\r
  36         HRESULT      hr;\r
  37         \r
  38         *ppvObject = NULL;\r
  39 \r
  40         if (pUnkOuter != NULL)\r
  41                 return CLASS_E_NOAGGREGATION;\r
  42 \r
  43         p = new CContextMenu();\r
  44         if (p == NULL)\r
  45                 return E_OUTOFMEMORY;\r
  46 \r
  47         hr = p->QueryInterface(riid, ppvObject);\r
  48         p->Release();\r
  49 \r
  50         return hr;\r
  51 }\r
  52 \r
  53 STDMETHODIMP CClassFactory::LockServer(BOOL fLock)\r
  54 {\r
  55         LockModule(fLock);\r
  56 \r
  57         return S_OK;\r
  58 }\r
  59 \r