C++ IShellView::Refresh方法代码示例

// @pymethod |PyIShellView|Refresh|Description of Refresh.
PyObject *PyIShellView::Refresh(PyObject *self, PyObject *args)
{
	IShellView *pISV = GetI(self);
	if ( pISV == NULL )
		return NULL;
	if ( !PyArg_ParseTuple(args, ":Refresh") )
		return NULL;
	HRESULT hr;
	PY_INTERFACE_PRECALL;
	hr = pISV->Refresh( );
	PY_INTERFACE_POSTCALL;
	if ( FAILED(hr) )
		return PyCom_BuildPyException(hr, pISV, IID_IShellView );
	Py_INCREF(Py_None);
	return Py_None;
}

HRESULT WINAPI CRecycleBin::InvokeCommand(LPCMINVOKECOMMANDINFO lpcmi)
{
    HRESULT hr;
    LPSHELLBROWSER lpSB;
    IShellView * lpSV = NULL;

    TRACE("%p %p verb %p\n", this, lpcmi, lpcmi->lpVerb);

    if (LOWORD(lpcmi->lpVerb) == iIdEmpty)
    {
        // FIXME
        // path & flags
        hr = SHEmptyRecycleBinW(lpcmi->hwnd, L"C:\\", 0);
        TRACE("result %x\n", hr);
        if (hr != S_OK)
            return hr;

        lpSB = (LPSHELLBROWSER)SendMessageA(lpcmi->hwnd, CWM_GETISHELLBROWSER, 0, 0);
        if (lpSB && SUCCEEDED(lpSB->QueryActiveShellView(&lpSV)))
            lpSV->Refresh();
    }
    return S_OK;
}

//.........这里部分代码省略.........
      hr = ishell->GetAttributesOf(1, &fidl, &attr);
      if (!SUCCEEDED(hr))
      {
         wxASSERT(SUCCEEDED(hr));
         break;
      }
      
      // Allow all folders (things like zip files get filtered below)
      if ((attr & (SFGAO_FOLDER)) && !(attr & SFGAO_BROWSABLE))
      {
         continue;
      }
      
      // Retrieve the parsable name of the object (includes extension)
      STRRET str;
      hr = ishell->GetDisplayNameOf(fidl, SHGDN_INFOLDER | SHGDN_FORPARSING, &str);
      if (hr != NOERROR)
      {
         // For some objects, we get back an error of 80070057.  I'm assuming this
         // means there is no way to represent the name (like some sort of virtual name)
         // or I've not used the correct PIDL.  But, in either case, it "probably"
         // represents some sort of folder (at least in all cases I've seen), so we
         // simply allow it to display.
         continue;
      }
      
      // Convert result to wxString
      wxString filename;
      switch (str.uType)
      {
         case STRRET_WSTR:
            filename = str.pOleStr;
            imalloc->Free(str.pOleStr);
            break;
            
         case STRRET_OFFSET:
            filename = wxString(((char *)fidl) + str.uOffset, wxConvISO8859_1);
            break;
            
         case STRRET_CSTR:
            filename = wxString(str.cStr, wxConvISO8859_1);
            break;
      }
      
      // Convert the filename to lowercase (and remember to write filters in lowercase!)
      filename = filename.Lower();

      // Attempt to match it to all of our filters
      bool match = false;
      for (int flt = 0; flt < fltcnt; flt++)
      {
         if (wxMatchWild(m_Filters[flt], filename, false))
         {
            match = true;
            break;
         }
      }
      
      // Remove it from the display if it didn't match any of the filters.
      if (!match)
      {
         ListView_DeleteItem(lv, itm);
         itm--;
         itmcnt--;
      }
   }

   // On Vista and maybe XP, we seem to need to refresh the view after
   // changing the filters.  But, only refresh for type changes and not
   // selection changes since it causes additional selection change
   // events to occur.
   if (ishellview && refresh)
   {
      ishellview->Refresh();
   }

   // Release the interface
   if (ifolderview)
   {
      ifolderview->Release();
   }

   // Release the interface
   if (ishellview)
   {
      ishellview->Release();
   }

   // Release the interface
   if (ishell)
   {
      ishell->Release();
   }
   
   // Release the interface
   if (imalloc)
   {
      imalloc->Release();
   }
}