OpenEuphoria

Re: Llama Problems

• Posted by David Cuny <dcuny at LANSET.COM> Jun 18, 1999
• 407 views

Neil Harvey wrote:

> Is this what Llama means? I downloaded it and
> EVERY example program I ran it spat at me a
> load of errors. Someone clarify this.


I suspect that it gave you warnings, not errors. The warnings relate to
Llama's use of parameters - specifically, it's not using them. Llama
triggers code in response to Windows events, passing a number of parameters
that describe the event in detail. In some cases, the event handler may
choose to ignore certain values.

For example, an onPaint event returns the area of the screen that needs to
be repainted: {x1,y1,x2,y2}. Typically, the demos ignore these values and
simply repaint the entire window:

   procedure Paint( integer x1, integer y1, integer x2, integer y2 )
      ... repaint the window ...
   end procedure

Since the "without warning" option is not selected, Euphoria helpfully
issues warnings about each of these parameters:

   warning: parameter x1 in Paint() is not used
   warning: parameter y1 in Paint() is not used
   warning: parameter x2 in Paint() is not used
   warning: parameter y2 in Paint() is not used

Multiply this by a handful of similar event handlers, and you have a
screenful of warnings. I've left them in because (1) in some cases, they are
actually useful warnings, and (2) it reminds people that Llama is still
alpha software.

I hope this helps!

-- David Cuny