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Trapping a DOUBLE-CLICK on a list box is built into the Clarion and ABC BrowseBox templates.

To trap a DOUBLE-CLICK on a list control in hand-code:

1.Establish an ALRT(MouseLeft2) attribute on the LIST control.

2.Trap for EVENT:AlertKey on the LIST control.

3.Trap for the MouseLeft2 keycode, as in the following example:

**ACCEPT**

** CASE FIELD()**

** OF ?List**

**  CASE EVENT()**

**  OF EVENT:AlertKey**

**   IF KEYCODE() = MouseLeft2**

**    CurrentSel = CHOICE(?List1)  ! Get current selection in list box**

**    GET(TheQueue, CurrentSel)    ! Get corresponding data from queue**

**   END**

**  END**

**END **

The above code finds out what item the user DOUBLE-CLICKED on using the CHOICE() function, then uses the GET() function to retrieve the item from the QUEUE.

When using the ABC templates, the recommended embed point can be found in the //TakeKey// method. In the Clarion template chain, use the //Browse Double Click Handler// embed.