Callback: Layout name
From GRFSpecs
Airport layout name (156)
This callback allows you to show a name for an airport layout.
| Return value | Version | Meaning |
|---|---|---|
| 0000..03FF | D0xx text to display. | |
| 0400 | GRFv≥8 | Display no text (same as callback failure). |
| 040F |  15  |
Display text using text ID from register 0x100 (not limited to D0xx texts). |
This callback is always called when available, you do not need to set a bit in any action0 property to enable it. Available for OpenTTD since r20273.
