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The u6-u9 capabilities are an early extension documented in ncurses's terminal database: # INTERPRETATION OF USER CAPABILITIES # # The System V Release 4 and XPG4 terminfo format defines ten string # capabilities for use by applications, <u0>...<u9>. In this file, we use # certain of these capabilities to describe functions which are not ...


Ahha. It is a special entry in the database. It gives the respond format to u7. The response is <ESC>[Y;XR as in Y=row and X=column. If u6 has %i, one should decrement the responded values. Example: u6=\E[%i%d;%dR u7=\E[6n Send u7. Response for example: \E[48;13R. Result: Y = 48 - 1 = 47 X = 13 - 1 = 12.

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