Scrolling Text Interaction to replace Text Entry Box


Although I have already posted about one Submit button for multiple TEB’s, recently users tried to apply that blog to non-validated TEB’s, which was not the goal of that original post. Moreover giving another attempt to a TEB where the Submit has been done has become less easy with HTML5 output. SWF output had so many advantages (rewinding the playhead a couple of frames was simple), but that is the past.

Instead of writing long answers to the most recent thread, to explain why choosing Scrolling Text Interactions was a better choice for non-validated fields, I created a short example file. The workflow explanation will be in this article..

This example was created with version, the most recent version of Captivate. I uses some image and button assets from the new Assets panel. However, nothing has changed for interactions in this major update to version 11. I am confident that the solution will work for every version since 8, meant for HTML output.


File has two slides. Only the first slide is relevant for the workflow, the second is meant to test the Continue button (with action "Go to Next Slide").

The first slide has three fields to fill.  If any field remains empty, a textual warning will appear and you can retry. The Continue button appears when all fields have an entry. Project has no poster image, just the default play button. It is not rescalable. Here is the link



For three fields you need 3+1=4 user variables, none of them needs a default value in its definition:
  • v_one, v_two and v_three will be used witl be associated with the Interactions
  • v_null is needed for the advanced conditional action to test if the field is blank; more info in ‘Where is Null’

Scrolling Text Interactions

Next to each Text container (used a shape) an instance of the Scrolling Text interaction. Here is a screenshot of the setup of the first of them. Important is to link one of the variables and to uncheck the option ‘Read only’:

You see in the dialog box that I edited the font (used an Adobe font), the font size and attribute.  Just a reminder: it is not sufficient to type in a variable name to define it, you need to define it in the Variables dialog box. 

Although I resized the interactions to the same height as the Text containers with the questions, the height is decreased in the output file. Be careful with copy/paste to duplicate an interaction, prefer the Duplicate functionality within Captivate (CTRL-D).

Advanced Action

This action is triggered by the Submit button. I used the On Enter event of the slide to hide the warning that will pop up if at least one field is empty. This is the Preview dialog box. The operator 'is equal to' is replaced by the JS equivalent needed '=='. The logical operator OR is replaced also by its JS equivalent |  As you perhaps know, an advanced action will be converted to JavaScript on Runtime.

The replacement of the grayscale image by the color image, disappearing items on the slide: all is achieved using  the timeline. For those interested, here is a screenshot of that timeline, I didn't group any items, but their label clearly shows what they are.


As usual I appreciate any comment, whether to add an alternative or to ask questions. You are welcome on my website as well.

Answer key for Survey


Once in a while a question like in this thread pops up:

“….students will need to answer short answer questions.  They will not be right or wrong, they will be their thoughts.  Is there a way to have all their answers compile into a final screen at the end?”

It seems logical to use short answer quiz slides, in Survey mode, for this use case. However I prefer to use one of the Learning Interactions, ‘Scolling Text’ for reasons I want to explain in this article, by describing both workflows with their specificities. It is up to you to decide which you’ll use. In both workflows variables will be important, hope you are familiar with them.

Short Answer quiz slides, Survey mode

Setup quiz slides

No right/wrong answer means that scoring has no sense, change the stqtus of the quiz slide to ‘Survey’. Nevertheless a score slide will be inserted but you can hide it easily.

Answers to quiz slides are stored in a reusable variable, cpQuizInfoAnswerChoice.After a short answer question the variable will contain the text typed in by the learner in the short answer field. Reusable means that the value will change after each short answer slide. Since we need to store each answer safely (for reusing on the slide at the end), you will need:

  • to create a user variable for each short answer question; I will label them v_First, v_Second, v_Third for the example you’ll see in the demo movie;
  • the default answer area is pretty small (one line), if you expect longer answers, make sure to increase the height of the answer area. It is not possible to edit the used master slide because it applies to multiple types of quiz slides;
  • the content of the system variable cpQuizInfoAnswerChoice is updated when the Submit button is clicked; it has to be transferred to the appropriate user variable, using the After Survey event; for that purpose I created a shared action with two commands:
    Assign v_First with cpQuizInfoAnswerChoice
    Go to Next Slide
    only parameter is the user variable (here v_First)
  • apply this shared action to each of the question slides, with the appropriate parameter.

Setup Answer Review slide

In the example movie I created one text container (shape or caption) and inserted the three user variables in it. Be careful to increase the number of characters to be shown when inserting the variables. You’ll also have to leave enough space for each variable. Of course you could create multiple text containers and/or have the answers distributed over multiple slides.

Using Scrolling Text interactions

A limitation of Short Answer quiz slide is that you can have only one answer per slide. When using a Scrolling Text interaction you can have several question on a slide as you can see in the example movie.

Setup interaction

Setup of the first answer box can be seen in this screenshot:

Two important items are indicated  in the screenshot:

  1. You have to type in the name of the variable to be used. There is no way to use a dropdown list. Beware: you have to create the variable, it is not created uatomatically.
  2. To allow text to be typed in by the user, the checkbox ‘ReadOnly’ has to be unchecked. By default it is checked.

It would have been possible to enter the question in the interaction, instead of having it in a separate text container. I preferred not to do it. Reason: if the user adds the answer, instead of overwriting the question, the variable will contain html tags, like <br>.

The Submit button, which you’ll see on the slide, triggers  the (default) action ‘Go to Next Slide’.

Since I reused the three user variables in this part of the example, I have created an advanced action triggered on Enter to empty the user variables with the technique described in this article.:

Setup Answer Review slide

Very easy: duplicate the slide with the interactions, and take out the On Enter action to reset the variables. The interactions are now populated with the given answers. Moreover the learner can still edit those answers, because of the option ‘ReadOnly’ being unchecked. If you don’t want it, check the option ‘ReadOnly’ on this duplicate slide.

It is also possible to use a similar slide for the first workflow with short answer quiz slides. That will be useful if you want indeed to allow editing the answers.

Example movie