{"id":12796,"date":"2022-10-01T23:10:31","date_gmt":"2022-10-01T17:40:31","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-to-stop-the-qtimer-upon-a-condition\/"},"modified":"2022-10-01T23:10:31","modified_gmt":"2022-10-01T17:40:31","slug":"solved-how-to-stop-the-qtimer-upon-a-condition","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-to-stop-the-qtimer-upon-a-condition\/","title":{"rendered":"[Solved] how to stop the Qtimer upon a condition"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-47435961\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"47435961\" data-parentid=\"47432007\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>Declare the QTimer as a member in you class<\/p>\n<p>h file:<\/p>\n<pre><code>class Ball: public QObject, public QGraphicsRectItem{\n{\n  Q_OBJECT\n\n  public:\n    \/\/ constructor\n    Ball(QGraphicsItem* parent=Q_NULLPTR);\n    \/\/ control your timer\n    void start();\n    void stop();\n    ...\n  private:\n    QTimer * m_poTimer;\n}\n<\/code><\/pre>\n<p>Initiate the timer object in your constractor<\/p>\n<p>cpp file:<\/p>\n<pre><code>Ball::Ball(QGraphicsItem* parent) :\n      QGraphicsItem(parent)\n{  \n  m_poTimer = new QTimer(this); \/\/ add this as a parent to control the timer resource\n  m_poTimer-&gt;setInterval(4000);\n\n  connect(m_poTimer,SIGNAL(timeout()),this,SLOT(move()));\n}\n\nvoid Ball::start()\n{\n   \/\/ start timer\n   m_poTimer-&gt;start();\n}\n\nvoid Ball::stop()\n{\n   \/\/ stop timer\n   m_poTimer-&gt;stop();\n}\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">2<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved how to stop the Qtimer upon a condition <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Declare the QTimer as a member in you class h file: class Ball: public QObject, public QGraphicsRectItem{ { Q_OBJECT public: \/\/ constructor Ball(QGraphicsItem* parent=Q_NULLPTR); \/\/ control your timer void start(); void stop(); &#8230; private: QTimer * m_poTimer; } Initiate the timer object in your constractor cpp file: Ball::Ball(QGraphicsItem* parent) : QGraphicsItem(parent) { m_poTimer = &#8230; <a title=\"[Solved] how to stop the Qtimer upon a condition\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-to-stop-the-qtimer-upon-a-condition\/\" aria-label=\"More on [Solved] how to stop the Qtimer upon a condition\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,1088,3468],"class_list":["post-12796","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-qt","tag-qtimer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] how to stop the Qtimer upon a condition - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-how-to-stop-the-qtimer-upon-a-condition\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] how to stop the Qtimer upon a condition - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Declare the QTimer as a member in you class h file: class Ball: public QObject, public QGraphicsRectItem{ { Q_OBJECT public: \/\/ constructor Ball(QGraphicsItem* parent=Q_NULLPTR); \/\/ control your timer void start(); void stop(); ... private: QTimer * m_poTimer; } Initiate the timer object in your constractor cpp file: Ball::Ball(QGraphicsItem* parent) : QGraphicsItem(parent) { m_poTimer = ... 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