diff options
Diffstat (limited to 'ocaml-binary-annot/otherlibs/graph/point_col.c')
| -rw-r--r-- | ocaml-binary-annot/otherlibs/graph/point_col.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/ocaml-binary-annot/otherlibs/graph/point_col.c b/ocaml-binary-annot/otherlibs/graph/point_col.c new file mode 100644 index 0000000000..473dae7d08 --- /dev/null +++ b/ocaml-binary-annot/otherlibs/graph/point_col.c @@ -0,0 +1,30 @@ +/***********************************************************************/ +/* */ +/* Objective Caml */ +/* */ +/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */ +/* */ +/* Copyright 1996 Institut National de Recherche en Informatique et */ +/* en Automatique. All rights reserved. This file is distributed */ +/* under the terms of the GNU Library General Public License, with */ +/* the special exception on linking described in file ../../LICENSE. */ +/* */ +/***********************************************************************/ + +/* $Id$ */ + +#include "libgraph.h" + +value caml_gr_point_color(value vx, value vy) +{ + int x = Int_val(vx); + int y = Int_val(vy); + XImage * im; + int rgb; + + caml_gr_check_open(); + im = XGetImage(caml_gr_display, caml_gr_bstore.win, x, Bcvt(y), 1, 1, (-1), ZPixmap); + rgb = caml_gr_rgb_pixel(XGetPixel(im, 0, 0)); + XDestroyImage(im); + return Val_int(rgb); +} |