I am using a variation of How to create two LicenseFile pages in Inno Setup to display a second license page in an Inno Setup-based installer. Unlike that code, I am not selecting a default. So these radio buttons appear, with no selection:
[ ] I accept the agreement
[ ] I do not accept the agreement
If the user selects the second radio -- I do not accept the agreement -- I would like to show a custom message to the user (message window). I do not need it to allow Next> to be clicked still or other workflow. Just show a message when they click do not accept radio.