Communicating and integrating flex to flash

This is a discussion on Communicating and integrating flex to flash within the Macromedia Flash forums in Adobe Tools category; I newbie in flash cs3 actionscript 3, i have some task regarding communication flex to flash. The situtation is, i want to change the color of my movie clip that created in flash upon or simultaneously change of color in flex application. How do i trigger the colors change in flash upon my flex application is changing colors too..? How do i pass the value of color of flex to flash, so that they change simultaneously? By the way, im working of button in flash and canvas in flex... Hoping for your reply guyz! Tnx in advanced..................................