From: Fredrik Lundh <fredrik@pythonware.com>
Date: Thu, 7 Sep 2000 15:05:09 +0000 (+0000)
Subject: Older Tk versions don't support mousewheel support.  Set event.delta
X-Git-Tag: v2.0b2~432
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a249f16af03ab2091b59e12faaefe642f95a85ea;p=python

Older Tk versions don't support mousewheel support.  Set event.delta
to zero if that's the case (closes bug #113727)
---

diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py
index e2f09a5a72..3a1d7a4eae 100644
--- a/Lib/lib-tk/Tkinter.py
+++ b/Lib/lib-tk/Tkinter.py
@@ -1050,7 +1050,10 @@ class Misc:
             e.widget = W
         e.x_root = getint(X)
         e.y_root = getint(Y)
-        e.delta = getint(D)
+        try:
+            e.delta = getint(D)
+        except ValueError:
+            e.delta = 0
         return (e,)
     def _report_exception(self):
         """Internal function."""