Function: window-top-line

window-top-line is a function defined in window.c.

Signature

(window-top-line &optional WINDOW)

Documentation

Return top line of window WINDOW.

This is the distance, in lines, between the top of WINDOW and the top of the frame's window area. For instance, the return value is 0 if there is no window above WINDOW.

WINDOW must be a valid window and defaults to the selected one.

Source Code

// Defined in /usr/src/emacs/src/window.c
{
  return make_fixnum (decode_valid_window (window)->top_line);
}