Qt：如何设置主窗口的初始位置？ [英] Qt: how to set main window's initial position?

问题描述

我认为正常的窗口管理器确定QMainWindow在桌面上的位置的初始位置。我想自己设置初始位置。

I think the normally window manager determines the initial position of the QMainWindow position on the desk top. I want to set the initial position myself. How is this done with Qt on Windows?

推荐答案

您可以使用 restoreGeometry（），以及具有 restoreState（） ...

You can restore the window geometry with restoreGeometry(), and the state of docked elements with restoreState(), during the construction of your MainWindow...

    QSettings settings("yourcompany", "yourapp");

    restoreGeometry(settings.value("geometry").toByteArray());
    restoreState(settings.value("state").toByteArray(),YOUR_UI_VERSION);

然后，如果您覆写 closeEvent（），您可以按如下方式保存状态：

Then, if you override closeEvent(), you can save the state as follows:

    QSettings settings("yourcompany", "yourapp");

    settings.setValue("geometry", saveGeometry());
    settings.setValue("state", saveState(YOUR_UI_VERSION));

YOUR_UI_VERSION是一个常数，当UI变化很大时应该增加，以防止尝试恢复无效状态。

YOUR_UI_VERSION is a constant you should increment when your UI changes significantly to prevent attempts to restore an invalid state.

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