Advanced Action: button hiding images (conditional action)

First tip: use the Preview button in the top right control panel (looks like a Play button) to see the complete conditional action, including all decisions. No need to take two screenshots, one for THEN and one for ELSE.

I always prefer to use 0 or 1 for a Boolean variable, false and true work but more to be typed.

Your question is not very clear to me. First you tell that you allow to click as many times on each button as wished, later on that you want to hide the button? I presume this is a typo and that you don't want the already shown images to remain visible when a new image is shown? In that case your approach will not work, you don't have to use a visibility variable (can be used for a toggle button, have a look at my blog post 1 action = 5 Toggle Buttons - Captivate blog ).

Just to show an image out of several, you don't even need a conditional action. Group all the images, and use this action:

  HIde Gr_Image

  Show ImageA

  Assign v_one with 1

I added the third command, if you answer positive on my second question, because in that case you'll need a Boolean variable to track i a button has already been clicked, in this example te first button, tracking variable is v_one, image to be shown is ImageA.

Second question: What do you want to happen when all buttons have been clicked? A Next button to appear, or to open a 'forms', or to go to another slide? In all these cases you'll need a conditional action with two decisions, where the first decision will have the commands I just showed, always executed because of the condition:

First decision 'Always'

   IF 1 is equal to 1

                     HIde Gr_Image

                    Show ImageA

                      Assign v_one with 1

Second decision checks if all variables have the value 1

    IF v_one is equal to 1   AND

        v_two is equal to 1   AND

         ......

   Show Bt_Next

   Enable Bt_Next