Virtual Pascal

Classic Object Pascal for free

Robert AH Prins
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Small ReadKey and screen-height routine
3 Replies

Started this discussion. Last reply by Tomas Hajny Feb 10.

Really bad bug(s) in VP
4 Replies

Started this discussion. Last reply by Robert AH Prins Apr 15, 2017.

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Tomas Hajny replied to Robert AH Prins's discussion Small ReadKey and screen-height routine
"I didn't mean to suggest that you should use FPC instead of VP (regardless from what I think about evolution of FPC optimization over time and other things mentioned in your response). I just mentioned that FPC provides a unit doing the thing…"
Feb 10
Robert AH Prins replied to Robert AH Prins's discussion Small ReadKey and screen-height routine
"Platform is Windoze, and if I have to use option 3 (OS API calls), so be it. The program(s) that I need this for are already 99% assembler anyway. For what it's worth, I use VP to generate working code, and after that the code is forked…"
Feb 10
Tomas Hajny replied to Robert AH Prins's discussion Small ReadKey and screen-height routine
"Which target / operating system? I believe that there are only three options as long as talking about just the VP RTL "out of box" (any other options would be based on one of these three - e.g. FPC provides unit keyboard which might be…"
Feb 10
Robert AH Prins replied to vasile eodor nastasa's discussion vpGUI for windows
"Nice to see the picture, but it would be even nicer to get an explanation on how to use it, when I run uGUI,exe all I get is three empty windows... Anyway, thanks for being a real VP user, makes a change from all the spammers trying to register…"
Nov 26, 2020
Robert AH Prins posted a discussion

Small ReadKey and screen-height routine

Does anyone know how to add a small ReadKey function to a program without going through the, remember TP/BP, pulling in the, admittedly more smartlink-friendly, VP CRT unit. All I need is something to detect the PgUp, PgDn and Esc keys to provide some "pageable" help screens, and (optionally) the screen-height, although I could just assume something sensible(?) for the latter.See More
Oct 27, 2020
Robert AH Prins left a comment for Ashwin D'Costa
"It's still free for communities with up to 150 members."
Dec 17, 2019
Ashwin D'Costa left a comment for Robert AH Prins
"Sorry the only other question that has piqued my curiosity. Given the expense of the Ning site as stated in various threads since at least 2016, how can this site still be going? Is there some exemption that applies to the site based on its…"
Dec 17, 2019
Ashwin D'Costa left a comment for Robert AH Prins
"Hi Robert, Thanks for your message. It is a little sad that the compiler has received so little love over the last few years but having read the history it is not really surprising. I am amazed at the size of the executables it can produce. Compared…"
Dec 17, 2019

Profile Information

Pascal interest:
User of VP, Delphi user
Website:
http://prino.neocities.org/indez.html
Favorite Programming Languages:
PL/I. REXX and then, rather far in the distance, Pascal
Prove you are human and name one of your favourite programming mechanisms
REXX

Comment Wall (2 comments)

At 4:08am on December 17, 2019, Ashwin D'Costa said…

Hi Robert,

Thanks for your message. It is a little sad that the compiler has received so little love over the last few years but having read the history it is not really surprising. I am amazed at the size of the executables it can produce. Compared with the output from a modern version of Delphi it is an eye-opener. The most recent apps that I have been producing in Delphi are over 15mb in size as release executables. I haven't yet used FreePascal but that might be on the cards.

I saw a programme written in Melbourne to help manage Wine Collections which has been written in Virtual Pascal. This is what rekindled my interest in the VP compiler. I couldn't engage the author of that software unfortunately but having an interest in the idea of wine databases I had thought there might be some synergies. That said there is a lot of stuff that modern Delphi has that just becomes too easy to rely on and notwithstanding the size of the VP executable, the ease of use and power of Delphi are really compelling.

Cheers,
Ashwin

At 4:10am on December 17, 2019, Ashwin D'Costa said…

Sorry the only other question that has piqued my curiosity. Given the expense of the Ning site as stated in various threads since at least 2016, how can this site still be going? Is there some exemption that applies to the site based on its venerability?

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