NAME
    DoubleClick -- Test two time values for double-click timing.

SYNOPSIS
    IsDouble = DoubleClick( StartSecs, StartMicros,
    D0                      D0         D1
            CurrentSecs, CurrentMicros )
            D2           D3

    BOOL DoubleClick( ULONG, ULONG, ULONG, ULONG );

FUNCTION
    Compares the difference in the time values with the double-click
    timeout range that the user has set (using the "Preferences" tool) or
    some other program has configured into the system.  If the
    difference between the specified time values is within the current
    double-click time range, this function returns TRUE, else it
    returns FALSE.

   These time values can be found in input events and IDCMP messages.
   The time values are not perfect; however, they are precise enough for
   nearly all applications.

INPUTS
    StartSeconds, StartMicros = the timestamp value describing the start of
      the double-click time period you are considering
    CurrentSeconds, CurrentMicros = the timestamp value describing
      the end of the double-click time period you are considering

RESULT
    If the difference between the supplied timestamp values is within the
    double-click time range in the current set of preferences, this
    function returns TRUE, else it returns FALSE

BUGS

SEE ALSO
    currenttime()