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Generating random-value integers in Qt

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m (Text replace - "<code cpp>" to "<code cpp-qt>")
 
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[[Category:Qt]][[Category:UI]]
 
[[Category:Qt]][[Category:UI]]
{{KBCS}}
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|platform=S60 3rd Edition, FP1, FP2<br>S60 5th Edition
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|devices= Nokia 5800 XpressMusic
|devices=Nokia 5800 XpressMusic
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|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
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|platform= S60 3rd Edition, FP1, FP2<br>S60 5th Edition
|subcategory=Base/System
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|devicecompatability= <!-- Compatible devices (e.g.: All* (must have GPS) ) -->
|creationdate=April 29, 2009
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|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
|keywords=qrand
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==Preconditions==
 
==Preconditions==
  
* Install [[Nokia Qt SDK]]
+
* Install [[Qt SDK]]
  
 
==Source==
 
==Source==
  
<code cpp>
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<code cpp-qt>
 
#include <QGlobal.h>
 
#include <QGlobal.h>
 
#include <QTime>
 
#include <QTime>
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</code>
 
</code>
  
<code cpp>
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<code cpp-qt>
  
 
// Create seed for the random
 
// Create seed for the random
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  [[Category:Code Examples]]
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  [[Category:Code Snippet]][[Category:MeeGo Harmattan]] [[Category:Symbian]]

Latest revision as of 04:16, 11 October 2012

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: tepaa (08 Apr 2009)
Last edited: hamishwillee (11 Oct 2012)

Contents

[edit] Overview

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

[edit] Preconditions

[edit] 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);


[edit] Postconditions

A random number is given.

This page was last modified on 11 October 2012, at 04:16.
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