The AUTORADIOBUTTON resource-definition statement creates an automatic radio button control. This control automatically performs mutual exclusion with the other AUTORADIOBUTTON controls in the same group. When the button is chosen, the application is notified with BN_CLICKED.
AUTORADIOBUTTON text, id, x, y, width, height [, style [, extended-style]]
If you do not specify a style, the default style is BS_AUTORADIOBUTTON | WS_TABSTOP.
For more information on the text, id, x, y, width, height, style, and extended-style parameters, see Common Control Parameters.