in this video show you how to create new C++/CLI project in visual studio 2019
Launch Visual studio 2019
on the right windows Choose create new project
at this time type CLR in search box at the upper right
Select CLR Empty project(.NET Framework )- Next
Give a project name and choose project path- Create
In solution explorer right click on project name and choose add- new item
select UI-windows form-give form name- add