Add check for null before calling Structure.FreeNative

diff --git a/gstreamer-sharp/Event.custom b/gstreamer-sharp/Event.custom
index dc2f666..cdb7dd1 100644 (file)
--- a/gstreamer-sharp/Event.custom
+++ b/gstreamer-sharp/Event.custom
@@ -86,7 +86,8 @@ public Gst.Structure Structure {
 
     IntPtr raw_ret = gst_event_get_structure (Handle);
     Gst.Structure ret = raw_ret == IntPtr.Zero ? null : (Gst.Structure) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Structure), true);
-    ret.FreeNative = false;
+    if (ret != null)
+      ret.FreeNative = false;
     cached_structure = ret;
     return ret;
   }

diff --git a/gstreamer-sharp/Message.custom b/gstreamer-sharp/Message.custom
index 2d5de62..711ca5b 100644 (file)
--- a/gstreamer-sharp/Message.custom
+++ b/gstreamer-sharp/Message.custom
@@ -86,7 +86,8 @@ public Gst.Structure Structure {
 
     IntPtr raw_ret = gst_message_get_structure (Handle);
     Gst.Structure ret = raw_ret == IntPtr.Zero ? null : (Gst.Structure) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Structure), true);
-    ret.FreeNative = false;
+    if (ret != null)
+      ret.FreeNative = false;
     cached_structure = ret;
     return ret;
   }

diff --git a/gstreamer-sharp/Query.custom b/gstreamer-sharp/Query.custom
index c7dda85..086118f 100644 (file)
--- a/gstreamer-sharp/Query.custom
+++ b/gstreamer-sharp/Query.custom
@@ -12,7 +12,8 @@ public Gst.Structure Structure {
 
     IntPtr raw_ret = gst_query_get_structure (Handle);
     Gst.Structure ret = raw_ret == IntPtr.Zero ? null : (Gst.Structure) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Structure), true);
-    ret.FreeNative = false;
+    if (ret != null)
+      ret.FreeNative = false;
     cached_structure = ret;
     return ret;
   }