Getting the process ID (PID)

# Get handle of list widget

  set mainform [ keylget cbs dialog ]
  set listWidget [ VxGetVar $mainform list ]

# Query list to get selected item

  set selProcList [VtListGetSelectedItem $psList -byItemList]

# Get pid from selected list item

  set pid [lindex [lindex $selProcList 0] 0]

These steps obtain the PID of the process the user selected.

First, obtain the handle of the list widget to access the process the user selected. To do this:

1. Use keylget(1tcl) to get the handle of the form dialog, which is in this cbs keyed list, and store this in the variable mainform.

2. Use VxGetVar(1vtcl) to get the handle of the list attached to it, and store this in the variable listWidget.

Finally, lindex(1tcl) retrieves the actual process ID from the selected list and stores it in the variable pid. The lindex command retrieves individual elements from a list.