Solved

How to have a "repeat button"?

Posted on 1997-06-06
2
247 Views
Last Modified: 2013-11-20
My application needs a "repeat button" : a button that sends a  messages every m milisecondes when the user maintains it pressed. Could tell what is the best way to implement this?
(Is it in a new class repeat  button, at he level of the toolbar that have the button or in the View that use the handle the command?
Thanks, Nicolas
0
Comment
Question by:Nicolas060297
2 Comments
 
LVL 2

Accepted Solution

by:
The Master earned 100 total points
ID: 1301998
As far as I know, the only time you get a button-click notification is when the button is acutally pressed, and then released.  You need to start your handling when the button is pressed, so you need to create your own class.

You could do this pretty easily by deriving a class from CButton, and handling the following messages:

OnLButtonDown()
OnLButtonUp()
OnTimer()

In OnLButtonDown, just call SetTimer() with the appropriate delay, and in OnLButtonUp, call KillTimer().  In your OnTimer() handler, send your message.

I'm pretty sure the timer resolution in Windows is around 55 ms, so if you want faster messages than that, you could alternatively start a peekmessage loop in your OnLButtonDown handler, and call timeGetTime() every loop to know when to send out the message.  You would obviously break out of the loop when you received a WM_MOUSEUP message.

Good Luck!
0
 

Author Comment

by:Nicolas060297
ID: 1301999
This answer suits me quite well. But I would have liked a little bit more details about how the button generates an application message.
(How does it knows the message it have to send)
0

Featured Post

Master Your Team's Linux and Cloud Stack

Come see why top tech companies like Mailchimp and Media Temple use Linux Academy to build their employee training programs.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
while loop over for loop 7 104
Doc'in system (example?) BA 7 112
matchUp  challenge 6 64
Problem to App 4 83
Introduction: Dynamic window placements and drawing on a form, simple usage of windows registry as a storage place for information. Continuing from the first article about sudoku.  There we have designed the application and put a lot of user int…
Introduction: Database storage, where is the exe actually on the disc? Playing a game selected randomly (how to generate random numbers).  Error trapping with try..catch to help the code run even if something goes wrong. Continuing from the seve…
This Micro Tutorial will give you a basic overview how to record your screen with Microsoft Expression Encoder. This program is still free and open for the public to download. This will be demonstrated using Microsoft Expression Encoder 4.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.

803 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