1954 static void line_xor(int x1, int y1, int x2, int y2);
5500                       line_xor(line_start_x, line_start_y, old_x, old_y);  in mainloop()
5502                       line_xor(line_start_x, line_start_y, new_x, new_y);  in mainloop()
5801   line_xor(cursor_x + cursor_textwidth, cursor_y,  in draw_blinking_cursor()
10448 static void line_xor(int x1, int y1, int x2, int y2)  in line_xor()  function
10554   line_xor(x1, y1, x2, y1);  in rect_xor()
10555   line_xor(x2, y1, x2, y2);  in rect_xor()
10556   line_xor(x2, y2, x1, y2);  in rect_xor()
10557   line_xor(x1, y2, x1, y1);  in rect_xor()
13546             line_xor(x1, y1, x2, y2);  in do_shape()
13549               line_xor(x1, y1, xv, yv);  in do_shape()
13550               line_xor(xv, yv, x2, y2);  in do_shape()