HANDLE类似于Linux中的文件描述符吗？ [英] Is HANDLE similar to file descriptor in Linux?

问题描述

HANDLE类似于Linux中的文件描述符吗？据我所知，HANDLE用于处理Windows上的每个资源，如字体，图标，文件，设备...，这本质上只是一个void指针指向保存特定资源的数据的内存块。 p>

Is HANDLE similar to file descriptor in Linux? As far as I know, HANDLE is used for handling every resources on Windows, such as font, icons, files, devices..., which in essence is just a void pointer point to a memory block holding data of a specific resource

推荐答案

是的，Windows句柄非常类似于Unix文件描述符（FD）。

Yes, Windows handles are very similar to Unix file descriptors (FDs).

请注意， HANDLE 不是指向内存块的指针。虽然 HANDLE 是 typedef 'd为 void * 只是使它更不透明。在实践中， HANDLE 是在表中查找的索引，就像FD编号一样。

Note that a HANDLE is not a pointer to a block of memory. Although HANDLE is typedef'd as void *, that's just to make it more opaque. In practice, a HANDLE is an index that is looked up in a table, just as an FD number is.

本博文探讨了一些相似之处和区别：
http： //lackingrhoticity.blogspot.com/2015/05/passing-fds-handles-between-processes.html

This blog post explores some of the similarities and differences: http://lackingrhoticity.blogspot.com/2015/05/passing-fds-handles-between-processes.html

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