CGroupControl is a CButton-derived class which assists with the use of group boxes (i.e., buttons with the BS_GROUPBOX style). The CGroupControl makes it easy to enable/disable, show/hide, or move a group. No code is required in the group s parent, as this is done automatically whenever the group control itself is enabled/disabled, shown/hidden, or moved. The control also includes a mechanism to allow you to perform any action on each control in a group.