The device line attributes are bundled in a DLINEBUNDLE structure:

┌────────────┬────────────────────────────────────────────────┐
│Parameter   │Description                                     │
├────────────┼────────────────────────────────────────────────┤
│cAttr       │Size of the logical attribute bundle.           │
├────────────┼────────────────────────────────────────────────┤
│cDefs       │Size of the LINEDEFS structure.                 │
├────────────┼────────────────────────────────────────────────┤
│lbnd        │LINEBUNDLE structure. The logical line bundle as│
│            │seen by the application. See LINEBUNDLE Mask:   │
│            │following this table.                           │
├────────────┼────────────────────────────────────────────────┤
│ldef        │LINEDEFS structure: defType Line definition.    │
│            │This is ignored by the presentation driver.     │
└────────────┴────────────────────────────────────────────────┘