As explained in Chapter 1, "Language Elements," the computer display is organized in a very particular way by HTBasic. Different statements affect different parts of the display.
To display information in the output area, use the OUTPUT or PRINT statements.
To display information on the Display Line, use the DISP statement. The Input Lines show the information the user types in response to queries by your programs.
Information can be pre-loaded into the Input Lines by using OUTPUT KBD.
The message line shows various system messages as well as live keyboard calculator results.
The softkey menus display the current softkey macros unless an ON KEY is active, in which case the ON KEY LABEL overwrites the softkey macro for that key.
Each of these areas of the screen are discussed in more detail through out this section.
