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在C ++中获取执行目录

[英]Get executing directory in C++

原文 2010-06-14 14:33:05 2 1 c++/ directory/ windows-ce

I have a .CAB file that runs as part of an installer process on a Windows CE box. 我有一个.CAB文件作为Windows CE框上的安装程序进程的一部分运行。 The CAB is written in C++. CAB是用C ++编写的。

The CAB file is ran twice as part of an upgrade process but in different locations at different times. CAB文件作为升级过程的一部分运行两次，但在不同时间在不同位置运行。 How can I find out what directory the .CAB file is being executed from (executing directory) using C++ only? 如何才能使用C ++找出正在执行.CAB文件的目录（执行目录）？

Thanks 谢谢

1 个解决方案

If by "C++ only" you mean without using Windows API, I don't think the standard library has a function to do that. 如果仅使用“C ++”意味着不使用Windows API，我认为标准库没有这样做的功能。

If you can call a Win32 API, you just have to call GetModuleFileName() with NULL as the first parameter, and you will get the path of the current executable. 如果您可以调用Win32 API，则只需调用GetModuleFileName()并将NULL作为第一个参数，您将获得当前可执行文件的路径。

Now, the problem is: we you run the .CAB, what is the executable? 现在，问题是：我们运行.CAB，可执行文件是什么？ The install DLL extracted from the .CAB, or the shell component that is running the .CAB? 从.CAB中提取的安装DLL，或运行.CAB的shell组件？

You can also try GetCommandLine() , as the first entry should be the executable path/name (it is actually the string passed to CreateProcess() , so you can't be 100% sure about it). 您也可以尝试GetCommandLine() ，因为第一个条目应该是可执行路径/名称（它实际上是传递给CreateProcess()的字符串，因此您无法100％确定它）。