voidCLeftView::OnInitialUpdate() { CTreeView::OnInitialUpdate(); CRuntimeClass*prc=RUNTIME_CLASS(CLeftView); BOOLb=prc->IsDerivedFrom(RUNTIME_CLASS(CDC)); b=this->IsKindOf(RUNTIME_CLASS(CDC)); staticinti=0; if(i)return; ++i; ModifyStyle(0,TVS_LINESATROOT|TVS_HASBUTTONS|TVS_SH