When you press any key during program execution, FoxPro executes the command you specify with ON KEY. Typically, ON KEY uses DO to execute a procedure.

After the command that you specified with ON KEY executes, program execution resumes on the line immediately following the program line that was executing when a key was pressed. However, if a procedure specified with ON KEY includes RETRY, the program line that was executing when a key was pressed executes again.

Use ON KEY without a command to cause no command to execute when a key is pressed (the default).

If both ON KEY and ON ESCAPE are in effect and Esc is pressed, the command specified with ON ESCAPE is executed.

In this example, records from the CUSTOMER table are displayed. If a key is pressed while the records are being displayed, the procedure named PAUSE is called. PAUSE uses WAIT to suspend display.

Copy Code

SET TALK OFF USE customer CLEAR ON KEY DO pause DO WHILE NOT EOF() ? 'Company: ' + company ? 'Address: ' + address ? SKIP ENDDO PROCEDURE pause STORE INKEY() TO HOLD WAIT RETURN

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