From: Jason Rumney <jasonr@gnu.org>
Date: Tue, 27 May 2003 21:18:22 +0000 (+0000)
Subject: (GET_WHEEL_DELTA_WPARAM): New macro.
X-Git-Tag: ttn-vms-21-2-B4~9915
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=af3a05edaf68db4661105964c3c583e80a80ff1c;p=emacs.git

(GET_WHEEL_DELTA_WPARAM): New macro.
---

diff --git a/src/w32term.c b/src/w32term.c
index 2900acf7f0a..1c4e6803906 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -73,6 +73,11 @@ Lisp_Object Vx_toolkit_scroll_bars;
 static int last_mousemove_x = 0;
 static int last_mousemove_y = 0;
 
+/* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't.  */
+#ifndef GET_WHEEL_DELTA_WPARAM
+#define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
+#endif
+
 /* Non-zero means that a HELP_EVENT has been generated since Emacs
    start.  */