Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

• close_display_when_freed : xdo
• code : charcodemap
• display_name : xdo
• index : charcodemap
• max_depth : xdo_search
• modmask : charcodemap
• needs_binding : charcodemap
• only_visible : xdo_search
• pid : xdo_search
• require : xdo_search
• screen : xdo_search
• searchmask : xdo_search
• symbol : charcodemap
• winclass : xdo_search
• winclassname : xdo_search
• winname : xdo_search
• xdpy : xdo