Returns a Dictionary with properties of the terminal that Vim detected from the response to t_RV request. See v:termresponse for the response itself. If v:termresponse is empty most values here will be 'u' for unknown. cursor_style whether sending t_RS works ** cursor_blink_mode whether sending t_RC works ** underline_rgb whether t_8u works ** mouse mouse type supported

** value 'u' for unknown, 'y' for yes, 'n' for no

If the +termresponse feature is missing then the result is an empty dictionary.

If "cursor_style" is 'y' then t_RS will be sent to request the current cursor style. If "cursor_blink_mode" is 'y' then t_RC will be sent to request the cursor blink status. "cursor_style" and "cursor_blink_mode" are also set if t_u7 is not empty, Vim will detect the working of sending t_RS and t_RC on startup.

When "underline_rgb" is not 'y', then t_8u will be made empty. This avoids sending it to xterm, which would clear the colors.

For "mouse" the value 'u' is unknown

Also see:

• 'ambiwidth' - detected by using t_u7.
• v:termstyleresp and v:termblinkresp for the response to t_RS and t_RC.