{"id":18098,"date":"2024-03-15T16:14:39","date_gmt":"2024-03-15T16:14:39","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/"},"modified":"2024-03-21T12:29:43","modified_gmt":"2024-03-21T12:29:43","slug":"how-to-nest-a-child-window-in-a-main-window-in-qt","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/","title":{"rendered":"How to nest a child window in a main window in Qt?"},"content":{"rendered":"

In Qt, you can nest subclassed windows within the main window as child widgets. One way to implement this is:<\/p>\n

    \n
  1. Widget for children<\/li>\n<\/ol>\n
    class<\/span> MainWindow<\/span> : public<\/span> QMainWindow\r\n{\r\n    Q_OBJECT\r\n\r\npublic<\/span>:\r\n    MainWindow<\/span>(QWidget *parent = nullptr<\/span>);\r\n\r\nprivate<\/span>:\r\n    ChildWidget *childWidget;\r\n};\r\n<\/code><\/pre>\n
      \n
    1. In the constructor of the main window, create an instance of the child window and set its parent object as the main window.<\/li>\n<\/ol>\n
      MainWindow::MainWindow<\/span>(QWidget *parent)\r\n    : QMainWindow<\/span>(parent)\r\n{\r\n    childWidget = new<\/span> ChildWidget<\/span>(this<\/span>);\r\n    \r\n    \/\/ \u5176\u4ed6\u4e3b\u7a97\u53e3\u7684\u8bbe\u7f6e\u548c\u5e03\u5c40...<\/span>\r\n}\r\n<\/code><\/pre>\n
        \n
      1. Add a sub-window to the layout of the main window.<\/li>\n<\/ol>\n
        \/\/ \u521b\u5efa\u4e00\u4e2a\u4e3b\u7a97\u53e3\u7684\u4e2d\u5fc3\u90e8\u4ef6<\/span>\r\nQWidget *centralWidget = new<\/span> QWidget<\/span>(this<\/span>);\r\nsetCentralWidget<\/span>(centralWidget);\r\n\r\n\/\/ \u521b\u5efa\u4e00\u4e2a\u5782\u76f4\u5e03\u5c40\u7ba1\u7406\u5668<\/span>\r\nQVBoxLayout *layout = new<\/span> QVBoxLayout<\/span>(centralWidget);\r\n\r\n\/\/ \u5c06\u5b50\u7a97\u53e3\u6dfb\u52a0\u5230\u5e03\u5c40\u4e2d<\/span>\r\nlayout->addWidget<\/span>(childWidget);\r\n<\/code><\/pre>\n
        By following the above steps, the child window has been successfully embedded into the main window. You can now access and operate the child window within other components of the main window.<\/p>\n","protected":false},"excerpt":{"rendered":"
        In Qt, you can nest subclassed windows within the main window as child widgets. One way to implement this is: Widget for children class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget *parent = nullptr); private: ChildWidget *childWidget; }; In the constructor of the main window, create an instance of the child window and set […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-18098","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow to nest a child window in a main window in Qt? - Blog - Silicon Cloud<\/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:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to nest a child window in a main window in Qt?\" \/>\n<meta property=\"og:description\" content=\"In Qt, you can nest subclassed windows within the main window as child widgets. One way to implement this is: Widget for children class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget *parent = nullptr); private: ChildWidget *childWidget; }; In the constructor of the main window, create an instance of the child window and set […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T16:14:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-21T12:29:43+00:00\" \/>\n<meta name=\"author\" content=\"Ava Mitchell\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ava Mitchell\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/\"},\"author\":{\"name\":\"Ava Mitchell\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/a3e2658c2cb9fb2be95ae0a8861f4a64\"},\"headline\":\"How to nest a child window in a main window in Qt?\",\"datePublished\":\"2024-03-15T16:14:39+00:00\",\"dateModified\":\"2024-03-21T12:29:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/\"},\"wordCount\":100,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-nest-a-child-window-in-a-main-window-in-qt\/\",\"name\":\"How to nest a child window in a main window in Qt? 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