static void OverrideFreeBuffer(GLib.GType gtype, FreeBufferNativeDelegate callback) { unsafe { IntPtr *raw_ptr = (IntPtr *)(((long)gtype.GetClassPtr()) + (long)class_abi.GetFieldOffset("free_buffer")); *raw_ptr = Marshal.GetFunctionPointerForDelegate((Delegate)callback); } }
private void InternalFreeBuffer(Gst.Buffer buffer) { FreeBufferNativeDelegate unmanaged = null; unsafe { IntPtr *raw_ptr = (IntPtr *)(((long)this.LookupGType().GetThresholdType().GetClassPtr()) + (long)class_abi.GetFieldOffset("free_buffer")); unmanaged = (FreeBufferNativeDelegate)Marshal.GetDelegateForFunctionPointer(*raw_ptr, typeof(FreeBufferNativeDelegate)); } if (unmanaged == null) { return; } unmanaged(this.Handle, buffer == null ? IntPtr.Zero : buffer.Handle); }