C++ (Cpp) AccessibleWrap::GetIAccessibleFor Examples

Example #1

File: ProxyAccessible.cpp Project: jld/gecko-dev

bool ProxyAccessible::GetCOMInterface(void** aOutAccessible) const {
  if (!aOutAccessible) {
    return false;
  }

  if (!mCOMProxy && mSafeToRecurse) {
    // See if we can lazily obtain a COM proxy
    AccessibleWrap* wrap = WrapperFor(this);
    bool isDefunct = false;
    ProxyAccessible* thisPtr = const_cast<ProxyAccessible*>(this);
    // NB: Don't pass CHILDID_SELF here, use the absolute MSAA ID. Otherwise
    // GetIAccessibleFor will recurse into this function and we will just
    // overflow the stack.
    VARIANT realId = {{{VT_I4}}};
    realId.ulVal = wrap->GetExistingID();
    thisPtr->mCOMProxy = wrap->GetIAccessibleFor(realId, &isDefunct);
  }

  RefPtr<IAccessible> addRefed = mCOMProxy;
  addRefed.forget(aOutAccessible);
  return !!mCOMProxy;
}