We don't provide old versions.

But you can download the latest/current version from: Visual Prolog Downloads.

I am not really sure why the original code was that complex; this should do: clauses new() :- isAtomic := toBoolean(pfc\reflection\reflection_native::termRepresentedByValue(typeLibraryOf(@Elem))), SV = if true = isAtomic then sizeOfDomain(@Elem) else sizeOfDomain(pointer) end if, if SV = 1 then get_...

The predicate takes a predicate without arguments (e. g. a runnable) as argument

The tutorials Fundamental Prolog Part 1 & Part 2 describes how to do "traditional" Prolog programming using PIE.

Your male fact is nondeterm, and therefore run becomes nondeterm. But run is declared to be a procedure. You can solve the problem using foreach like this: clauses run() :- foreach male(X) do stdio::writef("% is a male \n", X) end foreach. I suggest you work through these lessons .

I think you are asking about: messageForm:setState([wsf_maximized]) To bring it back to normal/restored state you use the wsf_restored flag. You should however notice that maximizing is for all the MDI child windows; either the MDI parent displays the child windows maximized or at their "restored" s...

I don't think this is because the file is to large. I think it is some other thing that causes this. The editor c++ code complains about reading beyond the end of the text (when we save the file). This happens when reading the 14th 8KB buffer from the editor. I cannot understand why we ask for somet...

Thank you. We have already solved this problem (internally).

The default buffer size for both reading and writing to files is 8KB: class inputStream_file : inputStream open core constants defaultBufferSize = 0x2000. If your read in 8 bit text mode (e.g. utf8), the actual buffer size is only half, because we there is an approximate doubling when converting fro...

It is a Windows thing. It seems to be controllable. See: Fault Tolerant Heap.

No, unfortunately not.

I can reproduce the problem.
But it does not exist in Vip 9.

Notice that you already knew it (see a couple of mails above ).

The Personal Edition doesn't contain vpiOldDomains.

When I compile the project with the Commercial Edition I don't get any errors.

Notice that when upgrading to the newer gui structure you will not need vpiOldDomains.

I have updated hitTest like this (i.e. the lines after the cut):: clauses hitTest(PNT, ItemId, SubItem) :- LVHITTESTINFO = gui_native::lvhittestinfo(PNT, 0, 0, 0, 0), _ = gui_native::sendMessage(nativeWindow, lvm_subItemHitTest, gui_api::wNull, uncheckedConvert(gui_native::lParam, LVHITTESTINFO)), g...