How can I stop status text from being displayed at the bottom of the screen?  For example, the text being displayed when I change the style for a range of cells?

The text is only displayed if the style-operation takes longer than a specific amount of time (e.g.  1.5 seconds).  You can increase the time with

   CGXLongOperation::SetTicksFirstTime(5000); // milliseconds

- OR -

// completely disables long operation for all commands CGXLongOperation::SetTicksFirstTime(LONG_MAX); 

- OR -

you could disable updating the status bar for specific operations by calling CGXLongOperation::SetLockedState( ) as follows:

   // construct an operation object
   CGXLongOperation theOp;
   // disable aborting the operation for following commands
   theOp.SetCanAbort(FALSE);
   // disable updating status bar for following commands
   theOp.SetLockedState(TRUE);
   // Now, process commands
   SetStyleRange(CGXRange(1,1,100,100), CGXStyle( ). ... );
   ...