Aspose::Words::Markup::IStructuredDocumentTag::set_IsShowingPlaceholderText method. Setter for Aspose::Words::Markup::IStructuredDocumentTag::get_IsShowingPlaceholderText in C++....Aspose::Words::Markup::IStructuredDocumentT::set_IsShowingPlaceholder...lder method Setter for Aspose::Words::Markup::IStructuredDoc...