HP 48gII Graphing, 50g Graphing manual Using Inform and Choose for Input, To set up an input form

Program:		Comments:
«
"Key in S.S. #"		Prompt string.
{ "	" 1 }	Commandline string (3 spaces
		before the first , 2 spaces
		between, and 4 spaces after the
		last ).
INPUT		Suspends the program for input.
DUP 1 3 SUB		Copies the result string, then
SWAP		extracts the first three and last
8 11 SUB		four digits in string form.
»
O SSEC ‰		Stores the program in SSEC.

Using INFORM and CHOOSE for Input

You can use input forms (dialog boxes), and choose boxes for program input. Program that contain input forms or choose boxes wait until you acknowledge them (%OK% or −) before they continue execution.

If OK is pressed, CHOOSE returns the selected item (or its designated returned value) to level 2 and a 1 to level 1. INFORM returns a list of field values to level 2 and 1 to level 1.

Both the INFORM and CHOOSE commands return 0 if CANCEL is pressed.

To set up an input form:

1.Enter a title string for the input for the input form (use @Õ).

2.Enter a list of field specifications.

3.Enter a list of format options.

4.Enter a list of reset values (values that appear when RESET is pressed).

5.Enter a list of default values.

6.Execute the INFORM command.

Example: Enter a title "FIRST ONE" `. Specify a field { "Name:" } `.

Enter format options (one column, tabs stop width five) { 1 5 } `.

Enter reset value for the field { "THERESA" } `. Enter default value for the field { "WENDY" } `. Execute INFORM (!°L%IN% %INFOR%).

The screen on the left appears. Press L%RESET% %OK% and the screen on the right appears.

RPL Programming 145