PyObject *PyIGlobalInterfaceTable::GetInterfaceFromGlobal(PyObject *self, PyObject *args)
{
PyObject *obriid = NULL;
DWORD dwCookie;
IID riid;
void* ppv;
HRESULT hr;
IGlobalInterfaceTable *pIGIT = GetI(self);
if ( pIGIT == NULL )
{
return NULL;
}
if (!PyArg_ParseTuple(args, "lO:GetInterfaceFromGlobal", &dwCookie, &obriid) )
{
return NULL;
}
BOOL bPythonIsHappy = TRUE;
if (!PyWinObject_AsIID(obriid, &riid)) bPythonIsHappy = FALSE;
if(!bPythonIsHappy)
{
return NULL;
}
PY_INTERFACE_PRECALL;
hr = pIGIT->GetInterfaceFromGlobal( dwCookie, riid, &ppv );
PY_INTERFACE_POSTCALL;
if ( FAILED(hr) )
{
return PyCom_BuildPyException(hr, pIGIT, IID_IGlobalInterfaceTable );
}
return PyCom_PyObjectFromIUnknown((IUnknown*)ppv, riid, FALSE);
}
HRESULT
AgileReference::Resolve(REFIID aIid, void** aOutInterface)
{
MOZ_ASSERT(aOutInterface);
MOZ_ASSERT(mAgileRef || mGitCookie);
if (!aOutInterface) {
return E_INVALIDARG;
}
*aOutInterface = nullptr;
if (mAgileRef) {
// IAgileReference lets you directly resolve the interface you want...
return mAgileRef->Resolve(aIid, aOutInterface);
}
if (!mGitCookie) {
return E_UNEXPECTED;
}
IGlobalInterfaceTable* git = ObtainGit();
MOZ_ASSERT(git);
if (!git) {
return E_UNEXPECTED;
}
RefPtr<IUnknown> originalInterface;
HRESULT hr = git->GetInterfaceFromGlobal(mGitCookie, mIid,
getter_AddRefs(originalInterface));
if (FAILED(hr)) {
return hr;
}
if (aIid == mIid) {
originalInterface.forget(aOutInterface);
return S_OK;
}
// ...Whereas the GIT requires us to obtain the same interface that we
// requested and then QI for the desired interface afterward.
return originalInterface->QueryInterface(aIid, aOutInterface);
}
