view_pos_from_relative_character
September 8th 2024
Compute the byte position associated with the start of a particular character specified relative to the first character of a particular line
Signature
i64
view_pos_from_relative_character(Application_Links* app,
View_ID view_id,
i64 base_line,
i64 character);Parameters
app
the standard custom layer context pointer
view_id
the id of the view who's layout will be measured
base_line
the line number of the line that serves as the relative starting point of the measurement
character
the relative character index of the query character, based at the first character of base line
Return
the byte index associated with the start of the character specified by the the base_line and relative_character parameters on success, when the view exists and contains the base line, zero otherwise
Details
Line numbers are 1 based.
Equivalent to calling the buffer related function of the same name by deriving the buffer, width, and face from the view.