RE:I’ve done that, but it displays code as text
Yes, it displays a text on the slide but when it is saved and viewed from the main page, Contact Form 7 gets displayed.
Step by step approach to adding Contact From 7 on Revolution slider.
1. Add a new slide to your revolution slider or use an existing one.
2. Create a text layer on top of the slide on which you wish to display Contact From 7. In the text area, paste the contact form shortcode.
This will display the contact form 7 shortcode on the slider but once saved, contact form 7 gets displayed on the main page.
The position of the Form on the slider may not be desirable, keep adjusting it from the slide settings until it displays at the position of your choice.