Applications can be controlled by the keyboard without the use of the mouse. This tutorial shows how to set up tabs, so, the keyboard can control the application. This tutorial also shows how to clear editboxes and quit the program by calling Application.Terminate. 

Simple Calculator Tutorials

Tutorial 5 - Setting up the Form - Simple Calculator Part 1

Tutorial 6 - String Conversion - Simple Calculator Part 2

Tutorial 7 - RadioButtons - Simple Calculator Part 3

Tutorial 8 - Try Except Error Handling - Simple Calculator Part 4

Tutorial 9 - Tabs and Finished App - Simple Calculator Part 5

Code Download
SimpleCalculator.zip