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Returns or sets the field number of the currently selected TAB in a SHEET, or RADIO in an OPTION structure.

**Example:**

**WinView WINDOW('Child One'),AT(0,0,320,200),MDI,MAX,HVSCROLL**

**     OPTION('Option 1'),USE(OptVar1),KEY(F10Key),HLP('Option1Help')**

**      RADIO('Radio 1'),AT(0,0,20,20),USE(?R1)**

**      RADIO('Radio 2'),AT(20,0,20,20),USE(?R2)**

**     END**

**    END**

** CODE**

** OPEN(WinView)**

** ?OptVar1{PROP:ChoiceFeq} = ?R1  !Select radio one**

** ACCEPT**

** END**

**See Also:**

[[prop numtabs.htm|PROP:NumTabs]]

[[prop child.htm|PROP:Child]]

[[prop child.htm|PROP:ChildIndex]]

[[prop parent.htm|PROP:Parent]]