如何找到Qt应用程序的安装目录？ [英] How to find the installation directory of a Qt application?

问题描述

我有一个基于Qt的应用程序，可在Mac和Windows上使用。当用户安装软件时，它还会安装一个包含一堆HTML文档页面的文件夹。我如何找到程序的安装位置，以便当用户尝试从应用程序中打开帮助时，将其带到 index.html 。

I have a Qt based application that works for both Mac and Windows. When the user installs the software it also installs a folder containing a bunch of HTML documentation pages. How I can find the location of the program's installation so that when the user tries to open Help from within the application, they're brought to index.html.

我的程序安装在Windows和Mac的正常位置。在Mac上，我的程序安装到 / Users / username / Applications / MyProgram ，其中 MyProgram 是一个包含 MyProgram的文件夹。应用程序和文档文件夹。

My program installs in the normal locations for Windows and Mac. On Mac, my program installs to /Users/username/Applications/MyProgram where MyProgram is a folder containing "MyProgram.app" and the "Doc" folder.

#ifdef Q_OS_MACX
    docPath = executablePath + "/Doc/index.html";
#elif Q_OS_WIN
    docPath = executablePath + "/Doc/index.html";
#endif

    QDesktopServices::openUrl(QUrl::fromLocalFile(docPath));

所以，我的最终问题是， executablePath 是吗？此外，这假设用户可以在默认位置之外的其他位置安装程序，或者可以从快捷方式启动程序。

So, my ultimate question is, what should executablePath be? Further, this assumes the user could install the program elsewhere besides the default location or that the program could be launched from a shortcut.

推荐答案

您应该使用：

QString QCoreApplication::applicationDirPath() [static]

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