Solved

not displaying text in trichedit

Posted on 2000-04-21
5
170 Views
Last Modified: 2010-04-04
hi,
i am making my own terminal program and i am using a richedit component. when the userpresses a key, i don't want to display it in the rich edit box. in the onkeypress event i send it down the serial port. but i don't want it displayed on the screen as i said. but i don't want to disable the character visiblity completely because anything that comes down the serial line should show on the richedit box (i already did this). my only problem is to not show the characters that the user presses on his keyboard. how do i do this?
0
Comment
Question by:twilight_prince
5 Comments
 
LVL 2

Accepted Solution

by:
rene100 earned 50 total points
ID: 2737874
Hi

Add the follwing Line to the Code in the OnKeyPress-Event:

Key:=#0;


regards
rene

0
 
LVL 17

Expert Comment

by:inthe
ID: 2737893
listening..
0
 

Expert Comment

by:Zdhanko
ID: 2737918
In the onkeypress event supress key handling like this
procedure TForm1.RichEdit1KeyPress(Sender: TObject; var Key: Char);
begin
{Send Key to COM Port-> Here your code}
Key:=char(#0);
end;
 
0
 
LVL 3

Expert Comment

by:bryan7
ID: 2739465
you can also use a secondary richedit to enter the lines
0
 
LVL 17

Expert Comment

by:inthe
ID: 2739986
hi ,
actually you can simply do this by just set the richedit to readonly in the object inspector or on form create event.

richedit1.readonly := true;

cheers Barry
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

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…
This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …
This is a video that shows how the OnPage alerts system integrates into ConnectWise, how a trigger is set, how a page is sent via the trigger, and how the SENT, DELIVERED, READ & REPLIED receipts get entered into the internal tab of the ConnectWise …

919 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

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now