Re: ERRATUM

Hi Espen

before all thanks for your help.

I have tried to run your example but I have next problem

(setf some-region (make-instance 'gdk:region :rectangle #(0 0 100 100)))
(gdk:region-union some-region #(0 0 100 100))

The value #<GDK:REGION at 0x814EBB0> is not of type SYSTEM-AREA-POINTER.
   [Condition of type TYPE-ERROR]

Restarts:
  0: [ABORT-REQUEST] Abort handling SLIME request.
  1: [ABORT] Exit debugger, returning to top level.

What I note is that there are to ways to define a region as one instance
or as a pointer (using (gdk::region-new)). Which is the best way ?

thanks again

Carlos



> Carlos Agon <[email protected]> writes:
>
>> sorry I used in my last e-mail functions specifics to our software,
>> anyway the problem is the same
>>
>> (setf var (gdk::region-new))
>> (gdk::region-union-with-rect var (make-gdk-rect 0 0 100 100))
>
> These functions must also be part of your code as they are not in stock
> clg.
>
> I am not certain of what you try to accomplish with this code, but the
> preferred method to create a region from a rectangle¹ would be:
>
> (make-instance gdk:region :rectangle #(0 0 100 100))
>
> and to make a union between a region and a rectangle:
>
> (gdk:region-union some-region #(0 0 100 100))
>
> All region set operations can be given rectangles as the last argument
> (and with the latest code in CVS also as the first argument)
>
>> (gdk::region-get-clipbox var)
>>
>> The value NIL is not of type SYSTEM-AREA-POINTER.
>>     [Condition of type TYPE-ERROR]
>
> Without a backtrace of the stack it is hard to tell what is wrong.
>
>> I have the same problem calling the function
>>
>> (gdk::region-get-rectangles var)
>
> I found a small bug in this function that would cause it to return wrong
> output and possible seg fault, but not the error you got.
>
> Sorry I couldn't be of more help.
>
>
> ¹Vectors can be used instead of real rectangle objects as arguments to
> some functions
>
> --
> Espen
>
>



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