Disabling Printing ability of a sheet unless printing from a macro

I want to remove the option for an employee to print using the Excel installed printing options (without uninstalling printers). I was hoping there was an option to disable printing in the "protect sheet" drop down but didn't see one. I have already set in place an option for the employees to click Ctrl+Shift+P to run a macro listing sheets in the workbook that are allowed to be printed. Then, once the employee selects the sheet from the check box, the item prints to a PDF. I don't want this disabled. I want this to be the only way to print. I'm feeling like you cant have one without the other. I keep trying to throw you guys a curve ball but I can't stump you! Thanks for any help.