将用户和Delphi应用程序数据存储在正确的位置

怼烎@ 2022-12-06 15:24 145阅读 0赞

When you need to store some content related to your [Delphi application][] on the user's hard disk, you should take care of the support for state separation of user data, user settings, and computer settings.

当需要在用户的硬盘上存储与[Delphi应用程序][Delphi application]相关的某些内容时，应注意支持用户数据，用户设置和计算机设置的状态分离。

For example, The "Application Data" folder in [Windows][] should be used to store application-specific documents such as [INI files][], application state, temp files or similar.

例如， [Windows中][Windows]的“应用程序数据”文件夹应用于存储特定于应用程序的文档，例如[INI文件][INI files] ，应用程序状态，临时文件或类似文件。

You should never use hard-coded paths to specific locations, such as "c:\\Program Files," as this may not work on other versions of Windows because the location of folders and directories can change with different versions of Windows.

绝对不要使用指向特定位置的硬编码路径，例如“ c：\\ Program Files”，因为在其他版本的Windows上这可能不起作用，因为文件夹和目录的位置会随Windows的不同版本而改变。

## SHGetFolderPath Windows API函数 **(** The SHGetFolderPath Windows API Function **)** ##

The SHGetFolderPath is available in the **SHFolder** unit. SHGetFolderPath retrieves the full path of a known folder identified.

SHGetFolderPath在**SHFolder**单元中可用。 SHGetFolderPath检索标识的已知文件夹的完整路径。

Here's a custom wrapper function around the SHGetFolderPath [API][] to help you get any of the standard folders for all or the currently logged Windows user.

这是一个围绕SHGetFolderPath [API][]的自定义包装函数，可帮助您获取所有或当前登录的Windows用户的任何标准文件夹。

Here's an example of using the SHGetFolderPath function:

这是使用SHGetFolderPath函数的示例：

*  Drop a TRadioButtonGroup (name: "RadioGroup1") on a form
    
    将一个TRadioButtonGroup(名称：“ RadioGroup1”)放到窗体上
 *  Drop a TLabel (name: "Label1") on a form
    
    将TLabel(名称：“ Label1”)放在表单上
 *  Add 5 items to the radio group:
    
    将5个项目添加到广播组：
    
     *  "\[Currenty User\]\\My Documents"
        
        “ \[当前用户\] \\我的文档”
     *  "All Users\\Application Data"
        
        “所有用户\\应用程序数据”
     *  "\[User Specific\]\\Application Data"
        
        “ \[用户特定\] \\应用程序数据”
     *  "Program Files"
        
        “程序文件”
     *  "All Users\\Documents"
        
        “所有用户\\文档”
 *  Handle the RadioGroup's OnClick event as:
    
    将RadioGroup的OnClick事件处理为：

Note: "\[Current User\]" is the name of the currently logged in Windows user.

注意：“ \[当前用户\]”是当前登录的Windows用户的名称。

Note: The SHGetFolderPath is a superset of SHGetSpecialFolderPath.

注意：SHGetFolderPath是SHGetSpecialFolderPath的超集。

You should not store application-specific data (such as temporary files, user preferences, application configuration files, and so on) in the My Documents folder. Instead, use an application-specific file that is located in a valid Application Data folder.

您不应在“我的文档”文件夹中存储特定于应用程序的数据(例如临时文件，用户首选项，应用程序配置文件等)。 而是使用有效的“应用程序数据”文件夹中的特定于应用程序的文件。

Always append a subfolder to the path that SHGetFolderPath returns. Use the following convention: "\\Application Data\\Company Name\\Product Name\\Product Version".

始终将子文件夹附加到SHGetFolderPath返回的路径。 使用以下约定：“ \\应用程序数据\\公司名称\\产品名称\\产品版本”。

> 翻译自: [https://www.thoughtco.com/store-user-and-application-data-in-the-correct-location-1058164][https_www.thoughtco.com_store-user-and-application-data-in-the-correct-location-1058164]

[Delphi application]: https://www.thoughtco.com/beginners-guide-to-delphi-enter-topic-1057658
[Windows]: https://www.thoughtco.com/working-with-windows-registry-1058474
[INI files]: https://www.thoughtco.com/manipulate-ini-files-from-delphi-1058227
[API]: https://www.thoughtco.com/guide-to-developing-delphi-programs-1058446
[https_www.thoughtco.com_store-user-and-application-data-in-the-correct-location-1058164]: https://www.thoughtco.com/store-user-and-application-data-in-the-correct-location-1058164