private static int DragEnter(IntPtr thisPtr, IntPtr pDataObj, uint grfKeyState, Point pt, uint *pdwEffect) { Ole32.IDropTarget inst = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr); var dataObject = WinFormsComWrappers.Instance.GetOrCreateObjectForComInstance(pDataObj, CreateObjectFlags.Unwrap); return((int)inst.DragEnter(dataObject, grfKeyState, pt, ref *pdwEffect)); }
private static int DragEnter(IntPtr thisPtr, IntPtr pDataObj, uint grfKeyState, Point pt, uint *pdwEffect) { try { Ole32.IDropTarget instance = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr); var dataObject = WinFormsComWrappers.Instance.GetOrCreateObjectForComInstance(pDataObj, CreateObjectFlags.Unwrap); return((int)instance.DragEnter(dataObject, grfKeyState, pt, ref *pdwEffect)); } catch (Exception ex) { Debug.WriteLine(ex); return(ex.HResult); } }