Web31 Dec 2024 · The subWindow is instantiated and a reference stored in the mainWindow. First when the SubWindow is openend it opens normally. Then I close the subWindow by clicking on the "X". When I reopen as shown in the mainwindow at the bottom, using the cached subWindow instace the subWindowWidget will NOT display. WebThe subwindow shares memory with the window orig. When using this routine, it is necessary to call touchwin or touchline on orig before calling wrefresh on the subwindow. Calling derwin is the same as calling subwin, except that begin _ y and begin _ x are relative to the origin of the window orig rather than the screen.

QT怎么在子线程设置MainWindow的ui组件 - CSDN文库

WebSyntax. var window = window.open( url, windowName, [ windowParameters]); url: Name of an URL which is to be loaded into new Window. windowName: Name of the new Window. Every window has a specific name written as window.name. If there is a window with the specified name, the URL will open up in that window; a new Window would be opened. Layout Componentscherokee national enduro

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Web22 Mar 2011 · I have an application whose centralWidget is a QMdiArea and I am trying to add a new subwindow to the QMdiArea whenever someone clicks a button. The sample code I used to implement it is shown below. I see that the addSubWindow call adds new subwindows when I call it from the constructor of the MainWindow class but fails to show …

Web13 Mar 2024 · 具体步骤如下： 在MainWindow的头文件中声明一个槽函数，用于更新ui组件。 在子线程中使用QMetaObject::invokeMethod ()函数来调用MainWindow的槽函数。 在槽函数中更新ui组件。 以下是示例代码： // MainWindow.h class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow (QWidget *parent = nullptr); … flights from newfoundland to london england