Centre - %cn

In this section:

• Introduction
• Centre - %cn
• Right justify - %rj
• Tab location - %Ntl
• Box format - %n.mob[options][title]
• Pivot - %pv
• Get and set window position formats - %gp, %sp
• Absolute position format - %ap
• Programmer grid format - %gd

%cn (Centre) forces the text and controls that follow (up to the next %nl (Newline) or %ff (Form Feed)) to be centred in the window (or box). It is often used in conjunction with buttons.

For example:

      WINAPP
      INTEGER i,winio@
      i=winio@('%ca[ClearWin+]%bg[grey]&')
      i=winio@('%cn%si!Save current changes?%2nl&')
      i=winio@('%tt[Yes] %tt[No] %tt[Cancel]')
      END

The %cn format code can take a grave accent format modifier. This causes centring to apply to the remainder of the format window or box. Thus a whole window or a box full of centred items may be created very easily.

For example:

    i=winio@('%`cnProgram to test prime numbers&')
    i=winio@('%2nlWritten by Joe Bloggs%2nl%`bt[OK]')

If %cn (Centre) is used within a box then it centres objects within that box.