Solved

Memo with auto scroll text

Posted on 2011-02-26
7
2,098 Views
Last Modified: 2012-05-11
Hi,

I want to have a Memo or similar component that display many lines of text and with a auto scroll (recursive) vertical like there is in many HTML Pages.
I have Delphi 7.

Thanks!
0
Comment
Question by:Seldon_
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
7 Comments
 
LVL 24

Expert Comment

by:jimyX
ID: 34988839
Here you are:
procedure TForm1.Memo1Change(Sender: TObject);
begin
  Memo1.Perform(EM_LineScroll, 0, Memo1.Lines.Count);
end;

Open in new window

0
 

Author Comment

by:Seldon_
ID: 34988853
Hi,
thanks for the respose but with this code I go at the end to the text of the Memo without animation.
0
 
LVL 24

Expert Comment

by:jimyX
ID: 34988879
What do you mean by animation? could you explain more please.
0
[Live Webinar] The Cloud Skills Gap

As Cloud technologies come of age, business leaders grapple with the impact it has on their team's skills and the gap associated with the use of a cloud platform.

Join experts from 451 Research and Concerto Cloud Services on July 27th where we will examine fact and fiction.

 

Author Comment

by:Seldon_
ID: 34988929
Is like a "HTML Marquee Code" (search on the web) but vertical and in a Memo or similar delphi component.
0
 
LVL 24

Accepted Solution

by:
jimyX earned 250 total points
ID: 34989018
You can download Jedi components. It's a very rich free components:

JEDI Visual Component Library:
http://jvcl.delphi-jedi.org/

They have a great exe app that shows their different components with details. Once you download their demo (link below) the welcome screen shows exactly what you have asked:
http://sourceforge.net/projects/jvcl/files/JVCL%20Demos/JVCL%203.00%20Mega%20Demo/

The component used is JvScrollText. You can find it under the tab "Jv scrollers" (in the demo window).
0
 
LVL 38

Expert Comment

by:Geert Gruwez
ID: 34990072
if you want a memo to autoscroll

just add a timer component
and move the caret position down a line

type
  TForm1 = class(TForm)
    Memo1: TMemo;
    Timer1: TTimer;
    procedure Timer1Timer(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  Memo1.Perform(EM_LINESCROLL, 0, 1);
end;

Open in new window

0
 

Author Comment

by:Seldon_
ID: 35004553
Thanks jimyX. I remembered having seen a component that did the autoscroll, but not which one! I had escaped the Jedi components.
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…
Suggested Courses
Course of the Month8 days, 1 hour left to enroll

617 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question