view_line_y_difference
January 19th 2020
Compute the signed vertical pixel distance between the top of two lines
Signature
f32
view_line_y_difference(Application_Links* app,
View_ID view_id,
i64 line_a,
i64 line_b);Parameters
app
the standard custom layer context pointer
view_id
the id of the view who's layout will be measured
line_a
the line number of the line 'A' in the subtraction top(A) - top(B)
line_b
the line number of the line 'B' in the subtraction top(A) - top(B)
Return
the signed distance between the lines in pixels on success, when the view exists and contains both given line numbers
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.