static void OverrideParseTag(GLib.GType gtype, ParseTagNativeDelegate callback) { unsafe { IntPtr *raw_ptr = (IntPtr *)(((long)gtype.GetClassPtr()) + (long)class_abi.GetFieldOffset("parse_tag")); *raw_ptr = Marshal.GetFunctionPointerForDelegate((Delegate)callback); } }
private Gst.Tags.TagDemuxResult InternalParseTag(Gst.Buffer buffer, bool start_tag, uint tag_size, Gst.TagList tags) { ParseTagNativeDelegate unmanaged = null; unsafe { IntPtr *raw_ptr = (IntPtr *)(((long)this.LookupGType().GetThresholdType().GetClassPtr()) + (long)class_abi.GetFieldOffset("parse_tag")); unmanaged = (ParseTagNativeDelegate)Marshal.GetDelegateForFunctionPointer(*raw_ptr, typeof(ParseTagNativeDelegate)); } if (unmanaged == null) { return((Gst.Tags.TagDemuxResult) 0); } int __result = unmanaged(this.Handle, buffer == null ? IntPtr.Zero : buffer.Handle, start_tag, tag_size, tags == null ? IntPtr.Zero : tags.Handle); return((Gst.Tags.TagDemuxResult)__result); }