eraseRectangle
Erases a VT400 rectangular area (DECERA / DECSERA).
Coordinates use DEC's one-based inclusive form. Zero values denote omitted parameters and resolve to the corresponding active-viewport edge. When origin mode is enabled, coordinates are relative to the active scrolling margins. Selective erasure preserves protected cells.
Parameters
top
One-based top row, or 0 when omitted.
left
One-based left column, or 0 when omitted.
bottom
One-based bottom row, or 0 when omitted.
right
One-based right column, or 0 when omitted.
selective
true for DECSERA, false for DECERA.