ms c++ 获取当前进程的pid
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ms c++ get pid of current process
提问by Bogdan Gavril MSFT
Parts of my application are in C++ under windows. I need the process id for the current process. Any thoughts?
我的应用程序的一部分是在 Windows 下的 C++ 中。我需要当前进程的进程 ID。有什么想法吗？
回答by Greg Hewgill
The GetCurrentProcessIdfunction will do this.
该GetCurrentProcessId函数将执行此操作。
回答by David A. Gray
Having grown accustomed to seeing yards and yards of code to accomplish seemingly straightforward tasks, I was pleasantly surprised at the directness of GetCurrentProcessId. Earlier today, I watched it run in a debugger, when I was following a new bit of code in a DllMainroutine that combines the process ID with an embedded GUID to create a locally unique name for a mutex.
已经习惯于看到成堆的代码来完成看似简单的任务，我对GetCurrentProcessId. 今天早些时候，我看到它在调试器中运行，当时我在一个DllMain例程中跟踪一段新代码，该例程将进程 ID 与嵌入的 GUID 结合起来，为互斥锁创建本地唯一的名称。
Following is the entire routine, all three machine instructions.
以下是整个例程，所有三个机器指令。
mov eax,fs:[00000018]
mov eax,dword ptr [eax+20h]
ret
BTW, two other blessedly simple Windows API functions are GetLastErrorand SetLastError; indeed, both are quite similar to this one.
顺便说一句，另外两个幸运的简单 Windows API 函数是GetLastError和SetLastError; 事实上，两者都与这个非常相似。
