[DllImport("libgstreamer-0.10.dll") ] static extern IntPtr gst_element_factory_make (IntPtr element, IntPtr name); public AppSrc (string name) : base (IntPtr.Zero) { IntPtr native_name = GLib.Marshaller.StringToPtrGStrdup (name); IntPtr native_element = GLib.Marshaller.StringToPtrGStrdup ("appsrc"); Raw = gst_element_factory_make (native_element, native_name); GLib.Marshaller.Free (native_name); GLib.Marshaller.Free (native_element); if (Raw == IntPtr.Zero) throw new Exception ("Failed to instantiate element \"appsrc\""); } public AppSrc () : this ((string) null) { }