MQUndoCrasher.cpp

BOOL MyCommandPlugin::OnLeftButtonDown(MQDocument doc, MQScene scene, MOUSE_BUTTON_STATE& state)
{
  int idx[3];
  MQObject o = doc->GetObject(0);
  if(o==NULL)return FALSE;
  idx[0] = 0;
  idx[1] = 1;
  idx[2] = o->AddVertex(MQPoint(0, 0, 0));
  o->AddFace(3, idx);

  UpdateUndo();  // MQ_RefreshView -> UpdateUndo の順番だとOK。UpdateUndo -> MQ_RefreshView の順番だとNG
  MQ_RefreshView(NULL);
  OutputDebugStringA("UndoE\n");

  return TRUE;
}

// 以後、標準ツール（選択など）を操作するたびに
//   MDocument::updateCurrentUndoSelectionObject() : Different number of vertices.
//   MDocument::updateCurrentUndoSelectionObject() : Different number of faces.
// がOutputDebugStringで表示される