// Removes that existing custom Jump List for this application.
void DeleteJumpList()
{
ICustomDestinationList *pcdl;
HRESULT hr = CoCreateInstance(CLSID_DestinationList, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pcdl));
if (SUCCEEDED(hr))
{
hr = pcdl->DeleteList(NULL);
pcdl->Release();
}
}
void JumpListsManager::deleteList(const wchar_t *appId)
{
if (!appId)
appId = m_appId;
ICustomDestinationList *list;
CoInitialize(0);
HRESULT res = CoCreateInstance(CLSID_DestinationList, 0, CLSCTX_INPROC_SERVER, IID_ICustomDestinationList, (void**)&list);
if (FAILED(res))
return;
res = list->DeleteList(appId);
list->Release();
m_actionInfoMap.clear();
}
// Builds a new custom Jump List for this application.
void CreateJumpList()
{
// Create the custom Jump List object.
ICustomDestinationList *pcdl;
HRESULT hr = CoCreateInstance(CLSID_DestinationList, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pcdl));
if (SUCCEEDED(hr))
{
// Custom Jump Lists follow a push model - applications are responsible for providing an updated
// list anytime the contents should be changed. Lists are generated in a list-building
// transaction that starts by calling BeginList. Until the list is committed, Windows will
// display the previous version of the list, if available.
//
// The cMinSlots out parameter indicates the minimum number of items that the Jump List UI is
// guaranteed to display. Applications can provide more items when building a custom Jump List,
// but the extra items may not be displayed. The number is dependant upon a number of factors,
// such as screen resolution and the "Number of recent items to display in Jump Lists" user setting.
// See the MSDN documentation on BeginList for more information.
//
// The IObjectArray returned from BeginList contains a list of items the user has chosen to remove
// from their Jump List. Applications must respect the user's removal of an item and not re-add any
// item in the removed list during this list-building transaction. Applications should also clear any
// persited usage-tracking data for any item in the removed list. If the user begins using a
// previously removed item in the future, it may be re-added to the list.
UINT cMinSlots;
IObjectArray *poaRemoved;
hr = pcdl->BeginList(&cMinSlots, IID_PPV_ARGS(&poaRemoved));
if (SUCCEEDED(hr))
{
// Add content to the Jump List.
hr = _AddCategoryToList(pcdl, poaRemoved);
if (SUCCEEDED(hr))
{
hr = _AddTasksToList(pcdl);
if (SUCCEEDED(hr))
{
// Commit the list-building transaction.
hr = pcdl->CommitList();
}
}
poaRemoved->Release();
}
pcdl->Release();
}
}