## setUncheckedSymbol(characterCode, fontName) {#number_string} Sets the symbol used to represent the unchecked state of a check box content control. ```js setUncheckedSymbol(characterCode: number,......Document(); let builder = new aw.DocumentBuilder(doc);...sdtCheckBox = new aw.Markup.StructuredDocumentTa(doc, aw.Markup.SdtType...