tixGetInt - Get the integer value of a string.
tixGetInt ?-nocomplain? ?-trunc? string
The command tixGetInt converts any number into an integer number. By
default, it will round the number to the nearest integer. When the
-trunc option is specified, the number is truncated instead of rounded.
When the string is not a valid TCL numerical value and the -nocomplain
option is specified, tixGetInt will return "0". Otherwise it will
generate an error.
Tix(n)