Renko Chart MT4 makes a self-ruling Renko diagram where all bars are appeared as Renko “blocks” without any wicks. The size of the “blocks” is determined in the settings.
The self-governing Renko graph is shown on history as well as on the web. The diagram is refreshed no less than at regular intervals.

Discover progressively about the Renko diagram plotting standards and look at the open Renko Chart MT4 source code in the article “How to build up a non-standard graph pointer for Market” (in Russian as of 28.04.2016; to be converted into English soon).