And if this i开发者_开发技巧s possible pleas explain how to do this.
If you are just looking for a path and are on Windows, you probably want something like SHBrowseForFolder. If you are using a framework that abstracts away a lot of low-level Windows API stuff (MFC, Qt, WxWidgets, etc), then it may have some other more convenient function or class that does the same thing.
If you're not on Windows, then I can't help except by suggesting you search the operating system's API and/or the documentation of whatever GUI framework you use.
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