A radiobutton allows the selection of one option from multiple options. More than one radiobuttons have to be combined in a group for this. All these radiobuttons of a group have to have the same main value for the selector , but different subvalues. The type number for a radiobutton is 2.

Every time a radiobutton is selected it returns it's selector and all other radiobuttons of the group are deactivated.

Example:

forminit ! one group of radiobuttons formentry "One", 5,30,65,44, 2, 10 formentry "Two", 5,50,65,64, 2, 11 formentry "Three",5,70,65,84, 2, 12 ! a second group of radiobuttons formentry "Alpha", 95,30,145,44, 2, 20 formentry "Beta", 95,50,145,64, 2, 21 formentry "Gamma",95,70,145,84, 2, 22 formdisplay $m1 formtouch sel messagebox "Selected:"+string(sel) goto m1