hp40g+.book Page 26 Friday, December 9, 2005 1:03 AM

PRVAR

Prints name and contents of variablename.

 

PRVAR variablename:

 

You can also use the PRVAR command to print the

 

contents of a program or a note.

 

PRVAR programname;PROG:

 

PRVAR notename;NOTE:

Prompt commands

BEEP

Beeps at the frequency and for the time you specify.

 

BEEP frequency;seconds:

CHOOSE

Creates a choose box, which is a box containing a list of

 

options from which the user chooses one. Each option is

 

numbered, 1 through n. The result of the choose

 

command is to store the number of the option chosen in a

 

variable. The syntax is:

 

CHOOSE variable_name; title; option1; option2;

 

...optionn:

 

where variable_name is the name of a variable for

 

storing a default option number, title is the text displayed

 

in the title bar of the choose box, and option1...optionn

 

are the options listed in the choose box.

 

By pre-storing a value into variable_name you can

 

specify the default option number, as shown in the

 

example below.

 

Example

 

3 X A:CHOOSE A;

 

 

 

 

 

 

 

 

"COMIC STRIPS";

 

 

 

 

"DILBERT";

 

 

 

 

"CALVIN&HOBBES";

 

 

 

 

"BLONDIE":

 

 

 

CLRVAR

Clears the specified variable. The syntax is:

 

CLRVAR variable :

21-26

 

 

Programming