Aspose::Words::Markup::Structureddocumenttag::set_IsShowingPlaceholderText method. Setter for Aspose::Words::Markup::Structureddocumenttag::get_IsShowingPlaceholderText in C++....Aspose::Words::Markup::StructuredDocumentTa::set_IsShowingPlaceholder...holder method StructuredDocumentTa::set_IsShowingPlaceholder...