Improve company productivity with a Business Account.Sign Up

x
?
Solved

How to detect a key pression inside a while loop

Posted on 1998-11-26
1
Medium Priority
?
147 Views
Last Modified: 2010-04-04
Hi all..

I have a menu option that reads the 64K memory of a circuit connected to the serial port. When that option is chosen, a function that reads the memory is called. That function has a while loop that reads 4096 memory blocks at a time until it has read 64 K. The problem is that if I want to cancel the read operation, for example, by pressing F7, the program doesn't respond to keypresses. Is there in Delphi 3.0 something similar to Pascal ReadKey and Keypressed? or do you have any other suggestion? onKeyPress event of the form containing the menu doesn't work until the memory was completely read, that is, when the readmemory function finishes.

Thanks a lot for help in advance,
Jaime
0
Comment
Question by:skel
1 Comment
 
LVL 12

Accepted Solution

by:
rwilson032697 earned 200 total points
ID: 1348022
In the loop reading the memoery do this:

Application.ProcessMessages.

Cheers,

Raymond.
0

Featured Post

Get your problem seen by more experts

Be seen. Boost your question’s priority for more expert views and faster solutions

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
The video will let you know the exact process to import OST/PST files to the cloud based Office 365 mailboxes. Using Kernel Import PST to Office 365 tool, one can quickly import numerous OST/PST files to Office 365. Besides this, the tool also comes…
Through the video, you can check the migration process of Outlook PST file to PDF. Kernel for Outlook to PDF tool can convert Outlook emails with all attributes like Subject, To, From, Cc, Bcc and other folders such as Inbox, Outbox, Sent Items, Jun…

585 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