Applications are provided that contain code of a programming language enabling simultaneous display on a screen of both two-dimensional and three-dimensional content. Furthermore, development systems and program libraries supporting the same are provided. A first command is generated by first program code of an application. The first command directs a first configuration of a first region of the screen to support the three-dimensional content. A second command is generated by second program code of the application. The second command directs a second configuration of a second region of the screen to support the two-dimensional content. The display of the three-dimensional content is caused within the first region of the screen, and the display of the two-dimensional content is caused within the second region of the screen.