Search found 15 matches

by David Harris
18 Jul 2012 4:49
Forum: Visual Prolog Tips & Samples
Topic: Custom Buttons & custom Labels - updated 1.4
Replies: 16
Views: 28083

custom buttons

I'd really like to use the features described by Glidas Menier for custom buttons and labels. However, it seems not much has happened since 2004. The write-up suggests going to the site http://www.arsaniit.com/vp_tools/buttons.htm but if you try you get a message that the site is not available. Any ...
by David Harris
3 Jul 2012 2:51
Forum: Visual Prolog
Topic: Built-in classes
Replies: 5
Views: 1493

Built-in classes

Sorry, Martin, still confused! In the pfc folder are many useful things, but I still have two problems: - I couldn't find stdio, or some other things I have used in the teaching information. - What I guess I am really looking for is a user-friendly list of available predicates, with explanations of ...
by David Harris
3 Jul 2012 2:33
Forum: Visual Prolog
Topic: Built-in classes
Replies: 5
Views: 1493

Built-in classes

Thanks Martin. :-)
by David Harris
25 Jun 2012 1:10
Forum: Visual Prolog
Topic: Internal error
Replies: 3
Views: 1069

OK. Sorry to refer a trivial error to you, but your comment did allow me to fix it in a few minutes! The heading to the error message said something like "Internal error - refer to supplier", and I referred it to you as the supplier of VIP. I guess the supplier was actually me - the supplier of the ...
by David Harris
24 Jun 2012 12:50
Forum: Visual Prolog
Topic: Internal error
Replies: 3
Views: 1069

Internal error

On working through Visual Prolog Beginners Guide I got the following error. I was using the worked example and this occured at p128. Any ideas? ======================================== Dump: 2012/06/24 12:46:36 ---------------------------------------- Exception: singleFactHasNoValue (com/visual-prol...
by David Harris
19 Jun 2012 4:00
Forum: Visual Prolog
Topic: Built-in classes
Replies: 5
Views: 1493

Built-in classes

Where can I find listings of the clauses in the built-in classes (stdIO, list etc)?
by David Harris
18 Jun 2012 4:51
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Using Beginners Guide for v7.2 with VIP v2.3

STOP! STOP! I've found the problem!

In a predicate I had a _Source and needed a Source (ie, no_ ).
by David Harris
18 Jun 2012 1:44
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Sixth error code. This is probably just a consequence of the other errors.
by David Harris
18 Jun 2012 1:43
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Fifth error code.
by David Harris
18 Jun 2012 1:42
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Fourth error code.
by David Harris
18 Jun 2012 1:41
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Third error code.
by David Harris
18 Jun 2012 1:40
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Second error code.
by David Harris
18 Jun 2012 1:37
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Using Beginners Guide for v7.2 with VIP v2.3

Thanks for your rapid response. Not sure of best way to provide you with code, so have provided a set of JPEG images of screen captures. One show the error reporting screen from attempting to build. The others are the result of double-clicking on each error to find it in the code. Hope this is enoug...
by David Harris
17 Jun 2012 8:04
Forum: Visual Prolog
Topic: Using Beginners Guide for v7.2 with VIP v2.3
Replies: 10
Views: 2313

Using Beginners Guide for v7.2 with VIP v2.3

I am teaching myself VIP with the Beginners Guide by Thomas de Boer. The Guide is written for v7.2, but the current version of VIP (which I'm using) is 7.3. The guide works fine up to about page 98. However, using the book to write the "add a record" function will not compile. I've checked and doubl...