window.showModalDialog - Dynamics 365

Hi all,

As window.showModalDialog is deprecated could you please suggest me the alternative solution for the same.

I have checked this blog,

https://nishantrana.me/2015/06/17/using-xrm-internal-opendialog-as-an-alternate-to-showmodaldialog-in-crm/

Xrm.Internal.openDialog also they have mentioned that is unsupported customization as per SDK.

Xrm.Internal.openDialog(“Web Resource path”,
DialogOption,
null, null,
CallbackFunction); 

Shall we pass the parameters for "null" what parameters should be passed?

Xrm.Utility.openWebResource(webResourceName,webResourceData,width, height) - Could some one explain the usage of Open webresource instead of showModal Dialog?