473,836 Members | 1,505 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

How to looping with Timer?

1 New Member
Dear all,
I am a student making a MS Form application in C++. I would ask a question about "Timer". Sample code which I am developing is below.

private: System::Void buttonStart_Cli ck(System::Obje ct^ sender, System::EventAr gs^ e){
for (int i=1; i<=10; i++){
String^ strValue;
FunctionName(&s trValue);
int interval=1000; // time interval of looping equal to 1s
SetTimer(timer1 , interval, NULL);
do {
this->textBox->Text = strValue;
while(TimerFlag = 0);
TimerFlag = 0;

private: System::Void FunctionName(St ring^ *strValue){
*strValue = "Something which could change in each time of above looping";

private: System::Void OnTimer(int timerId){
if(timerId = 1){
TimerFlag = 1;
HWND hwnd = NULL;
KillTimer(timer 1);

Compiling errors are
1. SetTimer doesn't take 3 arguments
2. Kill timer doesn't take 1 arguments

How should I input the arguments and how should I correctly looping with 1s interruption? Please help me!

Thank you very much in advance.

Jul 9 '08 #1
2 2084
1,275 Recognized Expert Top Contributor
If you are free to use any libraries then try to use ACE.
It has a timer also in it...

Jul 9 '08 #2
61 New Member
Expand|Select|Wrap|Line Numbers
  1. while(TimerFlag = 0);
This will always fail to execute as

Expand|Select|Wrap|Line Numbers
  1. TimerFlag = 0
will always be false.

Expand|Select|Wrap|Line Numbers
  1. if(timerId = 1)
This line isuseless unless you actually want to assing 1 to timerId, but the braces and the if are not neccessary.

I think you stick with the basics for now.

You need to get with your instructor and let him or her know you need some one on one time with a tutor.

Somethings are quicker when your not strugling with the slow communication of the internet.

Also, a tutor can see whether this code took you a few seconds to write or a few days, and they can imediately address the areas that you should be focusing on.

Expand|Select|Wrap|Line Numbers
  1. if( SomeValue == 1) 
Notice the second '='?
Jul 12 '08 #3

Sign in to post your reply or Sign up for a free account.

Similar topics

by: Manuel Lopez | last post by:
I have a puzzling form timer problem that I didn't experience prior to Access 2003 (though I'm not sure access 2003 is to blame). Here's the situation: a computer has two access 2003 databases on it, a frontend and a backend. Case 1: If vba code on the frontend updates many rows (360,000) on the backend, a form's timer event (from the frontend) will stop firing until the user gives the form focus. (Note that the update itself always...
by: Trevor Best | last post by:
I did a test once using a looping variable, first dimmed as Integer, then as Long. I found the Integer was quicker at looping. I knew this to be true back in the 16 bit days where the CPU's (80286) word size was 16 bits same as an integer. Now with a 32 bit CPU I would have expected the long to be faster as it's the same size as the CPU's word size so wouldn't need sawing in half like a magician's assistant to calculate on like an...
by: HL | last post by:
I am using VS 2005 Beta - C# Problem: The Timer fires a few milliseconds before the actual Due-Time Let's say a timer is created in the following manner: System.Threading.Timer m_timer = null; Let's declare a constant Int32 m_TimePeriod = 10000;
by: John David Thornton | last post by:
I've got a Windows Service class, and I put a System.Threading.Timer, and I've coded it as shown below. However, when I install the service and then start it in MMC, I get a peculiar message: The MyService service on Local Computer started and then stopped. Some services stop automatically if they ahve no work to do, for example, the Perforamnce Logs and Alert service. I tried switching to a System.Threading.Timer and that didn't work...
by: Liam.M | last post by:
Hey guys, If anyone could spare sometime to help me out, it would be very much appreciated.....what I am trying to do is automate a "Command" that sends me an Email. I have created a Query that grabs all the records I am after...now all I need to do is get some code that will allow me loop through each of these records shown by the query and pass certain fields from these records into the Body of my email command...which then emails...
by: Gina_Marano | last post by:
I have created an array of timers (1-n). At first I just created windows form timers but I read that system timers are better for background work. The timers will just be monitoring different directories and updating a database. No interaction with the GUI. Problem is that the system timers do not have a tag property so I can tie in an object. example (old way):
by: Jim S | last post by:
Is looping FindWindow() ok? We have a simple little c# 2.0 app that’s sole purpose is to look for a dialog box from another app to pop up and then click it’s OK button. To do this we use a form with a timer control and some unmanaged code. The app works perfectly in test but I’m concerned about long term problems/leaks caused by frequent FindWindow calls (10 per second)? Although the popups might only occur 50-100 times a day,...
by: =?Utf-8?B?RGF2ZSBCb29rZXI=?= | last post by:
I have a Timer that I set to go off once a day, but it frequently fails! In order to debug I would like to be able to check, at any moment, whether the Timer is enabled and when it will next Elapse. Is there any way -- whether in my code, or in the O/S -- to determine when a Timer is scheduled to Elapse?
by: Peter Oliphant | last post by:
Note that although this involves SAPI, it is more a question about Timers and event handlers. I wrote a Speech Recognize handler (SAPI), and put some code in it to enable a Timer. It would not do it. If I bring this same code outside this event handler, it works just fine. Is this normal?
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, well explore What is ONU, What Is Router, ONU & Routers main usage, and What is the difference between ONU and Router. Lets take a closer look ! Part I. Meaning of...
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupr who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.