Abstract: The present invention relates to a program-development environment that allows developers to seamlessly switch between a visual programming paradigm and a textual programming paradigm, thereby permitting developers to choose the paradigm best suited for creating each aspect of the desired program. A graphical user interface (GUI) may be generated by the program-development environment, and displayed on the screen of a computer system. The GUI has several elements including a form window and a designer window. The form window is configured to receive one or more control objects selected by the developer, and the designer window is configured to display a symbolic representation of those control objects placed in the form window.