Using text entry Box or Text are button

Question

Hi,
How do I do these?
using text entry box or text area widget.
to describe:
in my first slide I have text entry boxes for
    1. User name
     2. name of superior
     3. email of the superior
let say: 1. refer to varialbe V_UserN
             2. refer to V_sup
             3. refer to V_emailS
next slide would be a video
next slide would be a text entry or a text area..this is where the user writes anything
     Text entry box with submit button
What I want from this text entry box is..if the user doesnt write anything, upone clicking the submit button, the interaction wouldbe "please write a review on the text area"..if the user write something the something, the submit button will execute continue.
how do I do this?
next slide would be a text entry box or a text area..wherein the user write something based on question (this is not a quiz slide). The message would be sent to the superiors email. how do I do this?
hope you can help me.
Thanks

Answer 1

To check if the user didn't write anything you'll have to compare the value of the associated variable of that TEB or Text Area with a user variable v_null. You have to create that user variable and just leave it empty.
Have a look at my blog post:
Where is Null?
You'll have to create the custom question slide with standard objects. There is an mail widget included with Captivate, but didn't try out if you can insert the value of a variable as an email address.
Lilybiri