CSI Pt ; Pl ; Pb ; Pr ' w Enable Filter Rectangle (DECEFR), VT420 and up. Parameters are [top;left;bottom;right]. Defines the coordinates of a filter rectangle and activates it. Anytime the locator is detected outside of the filter rectangle, an outside rectangle event is generated and the rectangle is disabled. Filter rectangles are always treated as "one-shot" events. Any parameters that are omitted default to the current locator position. If all parameters are omit- ted, any locator motion will be reported. DECELR always can- cels any prevous rectangle definition.

CSI Ps ; Pu ' z Enable Locator Reporting (DECELR). Valid values for the first parameter: Ps = 0 -> Locator disabled (default). Ps = 1 -> Locator enabled. Ps = 2 -> Locator enabled for one report, then disabled. The second parameter specifies the coordinate unit for locator reports. Valid values for the second parameter: Pu = 0 <- or omitted -> default to character cells. Pu = 1 <- device physical pixels. Pu = 2 <- character cells.

CSI Pm ' { Select Locator Events (DECSLE). Valid values for the first (and any additional parameters) are: Ps = 0 -> only respond to explicit host requests (DECRQLP). (This is default). It also cancels any filter rectangle. Ps = 1 -> report button down transitions. Ps = 2 -> do not report button down transitions. Ps = 3 -> report button up transitions. Ps = 4 -> do not report button up transitions.