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Generating random-value integers in Qt

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==Overview==
 
==Overview==
  
This code snippet shows how to generate a random integer in Qt for S60.
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This code snippet shows how to generate a random integer in Qt for Symbian.
  
'''Note''': In order to use this code, you need to have Qt for S60 installed on your platform.
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'''Note''': In order to use this code, you need to have Qt for Symbian installed on your platform.
  
  
 
==Preconditions==
 
==Preconditions==
  
* Install latest Qt for S60 see [http://wiki.forum.nokia.com/index.php/Qt_for_S60_-_Installation_packages Qt for S60 - Installation packages]
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* Install latest Qt for Symbian see [[Qt_for_Symbian_-_Installation_packages|Qt for Symbian - Installation packages]]
 
* Check this link for installation guide: [http://pepper.troll.no/s60prereleases/doc/install-s60.html How to install the package].
 
* Check this link for installation guide: [http://pepper.troll.no/s60prereleases/doc/install-s60.html How to install the package].
* Go through this article: [[Getting started with Qt for S60]]
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* Go through this article: [[Getting started with Qt for Symbian]]
 
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==Source==
 
==Source==

Revision as of 16:48, 5 May 2010

Template:KBCS

Article Metadata
Tested with
Devices(s): Nokia 5800 XpressMusic
Compatibility
Platform(s): S60 3rd Edition, FP1, FP2
S60 5th Edition
Symbian
Article
Keywords: qrand
Created: (29 Apr 2009)
Last edited: kiran10182 (05 May 2010)

Contents

Overview

This code snippet shows how to generate a random integer in Qt for Symbian.

Note: In order to use this code, you need to have Qt for Symbian installed on your platform.


Preconditions

Source

#include <QGlobal.h>
#include <QTime>
 
int QMyClass::randInt(int low, int high)
{
// Random number between low and high
return qrand() % ((high + 1) - low) + low;
}
// Create seed for the random
// That is needed only once on application startup
QTime time = QTime::currentTime();
qsrand((uint)time.msec());
 
// Get random value between 0-100
int randomValue = randInt(0,100);


Postconditions

A random number is given.

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