Enable variadic macros for VC9 and later.

[wxWidgets.git] / src / msw / mediactrl_am.cpp

diff --git a/src/msw/mediactrl_am.cpp b/src/msw/mediactrl_am.cpp
index 95341cbdffca44567421f3764a99467b380c80a9..edcb971d6ae5e9cafc927c5bb41a6d6a96286c7c 100644 (file)
--- a/src/msw/mediactrl_am.cpp
+++ b/src/msw/mediactrl_am.cpp
@@ -2020,7 +2020,15 @@ wxLongLong wxAMMediaBackend::GetDuration()
 
         case S_OK:
             // outDuration is in seconds, we need milliseconds
-            return static_cast<wxLongLong>(outDuration * 1000);
+#ifdef wxLongLong_t
+            return static_cast<wxLongLong_t>(outDuration * 1000);
+#else
+            // In principle it's possible to have video of duration greater
+            // than ~1193 hours which corresponds LONG_MAX in milliseconds so
+            // cast to wxLongLong first and multiply by 1000 only then to avoid
+            // the overflow (resulting in maximal duration of ~136 years).
+            return wxLongLong(static_cast<long>(outDuration)) * 1000;
+#endif
     }
 }