HRESULT ShutdownShellServices(HDPA hdpa)
{
DPA_EnumCallback(hdpa, ShutdownAllCallback, NULL);
DPA_EnumCallback(hdpa, DeleteAllEnumCallback, NULL);
DPA_Destroy(hdpa);
return S_OK;
}
/**************************************************************************
* DPA_DestroyCallback [COMCTL32.386]
*
* Enumerates all items in a dynamic pointer array and destroys it.
*
* PARAMS
* hdpa [I] handle to the dynamic pointer array
* enumProc [I]
* lParam [I]
*
* RETURNS
* none
*/
void WINAPI DPA_DestroyCallback (HDPA hdpa, PFNDPAENUMCALLBACK enumProc,
LPVOID lParam)
{
TRACE("(%p %p %p)\n", hdpa, enumProc, lParam);
DPA_EnumCallback (hdpa, enumProc, lParam);
DPA_Destroy (hdpa);
}
HRESULT InitShellServices(HDPA * phdpa)
{
IOleCommandTarget * pOct;
HKEY hkey;
CLSID clsid;
WCHAR name[MAX_PATH];
WCHAR value[MAX_PATH];
DWORD type;
LONG ret;
HDPA hdpa;
HRESULT hr = S_OK;
int count = 0;
*phdpa = NULL;
TRACE("Enumerating Shell Service Ojbect GUIDs...\n");
if (RegOpenKey(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\ShellServiceObjectDelayLoad",
&hkey))
{
ERR("RegOpenKey failed.\n");
return HRESULT_FROM_WIN32(GetLastError());
}
hdpa = DPA_Create(5);
/* Enumerate */
do
{
DWORD name_len = MAX_PATH;
DWORD value_len = sizeof(value); /* byte count! */
ret = RegEnumValueW(hkey, count, name, &name_len, 0, &type, (LPBYTE) &value, &value_len);
if (ret)
break;
if (type != REG_SZ)
{
WARN("Value type was not REG_SZ.\n");
continue;
}
hr = CLSIDFromString(value, &clsid);
if (FAILED_UNEXPECTEDLY(hr))
{
ERR("CLSIDFromString failed %08x.\n", hr);
goto cleanup;
}
hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IOleCommandTarget, &pOct));
if (FAILED_UNEXPECTEDLY(hr))
{
ERR("CoCreateInstance failed %08x.\n", hr);
goto cleanup;
}
DPA_AppendPtr(hdpa, pOct);
count++;
}
while (1);
if (ret != ERROR_NO_MORE_ITEMS)
{
ERR("RegEnumValueW failed %08x.\n", ret);
hr = HRESULT_FROM_WIN32(GetLastError());
goto cleanup;
}
RegCloseKey(hkey);
/* Initialize */
DPA_EnumCallback(hdpa, InitializeAllCallback, &hr);
if (FAILED_UNEXPECTEDLY(hr))
goto cleanup;
*phdpa = hdpa;
return count > 0 ? S_OK : S_FALSE;
cleanup:
*phdpa = NULL;
ShutdownShellServices(hdpa);
return hr;
}
