Dewint studied drawing at the Académie Royale des Beaux-Arts. He then discovered engraving at the Académie de Watermael-Boitsfort, where he met fellow painter
Roger Somville, with whom he practiced monumental painting. Dewint's works emphasized the importance of color. His specialty was acquired in his youth with his entrepreneurial father, who decorated works for clients. In his engravings, he inked each plate with all colors used in a single attempt, giving each work individuality. Dewint held more than 80 personal exhibitions and participated in art festivals. In 2001, he held a retrospective at the in
La Louvière. In addition to engraving, Dewint painted watercolor envelopes, known as
mail art. These envelopes have been exhibited both in Belgium and abroad. Roger Dewint died in
Uccle on 15 April 2021, three days shy of his 79th birthday. ==Public collections==