blocks|key|1855920|text|GetProcessId函数|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1855921|检索指定进程的进程标识符。|blockquote|1855922|阅读更多这里|offset|length|1855923|代码示例(注DWORD定义+DWORD是一个32位的无符号整数+)：|style|BOLD|1855924|DWORD+MyGetProcessId(LPCTSTR+ProcessName)+//+non-conflicting+function+name
{
++++PROCESSENTRY32+pt;
++++HANDLE+hsnap+=+CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,+0);
++++pt.dwSize+=+sizeof(PROCESSENTRY32);
++++if+(Process32First(hsnap,+&pt))+{+//+must+call+this+first
++++++++do+{
++++++++++++if+(!lstrcmpi(pt.szExeFile,+ProcessName))+{
++++++++++++++++CloseHandle(hsnap);
++++++++++++++++return+pt.th32ProcessID;
++++++++++++}
++++++++}+while+(Process32Next(hsnap,+&pt));
++++}
++++CloseHandle(hsnap);+//+close+handle+on+failure
++++return+0;
}

int+main()
{
++++DWORD+pid+=+MyGetProcessId(TEXT("calc.exe"));
++++std::cout+<<+pid;
++++if+(pid+==+0)+{+printf("error+1");+getchar();+}//error
++++return+0;
}|code-block|syntax|javascript|1855925|entityMap|0|LINK|mutability|MUTABLE|url|https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-getprocessid|1|https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/262627d8-3418-4627-9218-4ffe110850b2^0|0|0|4|2|0|0|T|2|6|7|1|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|12|8|@]|9|@]|A|$]]|$1|E|3|F|5|6|7|13|8|@]|9|@$G|14|H|15|1|16]]|A|$]]|$1|I|3|J|5|6|7|17|8|@$G|18|H|19|K|L]]|9|@$G|1A|H|1B|1|1C]]|A|$]]|$1|M|3|N|5|O|7|1D|8|@]|9|@]|A|$P|Q]]|$1|R|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]]|S|$T|$5|U|V|W|A|$X|Y]]|Z|$5|U|V|W|A|$X|10]]]]

GetProcessId function

<blockquote>
 Retrieves the process identifier of the specified process.
</blockquote>

Read more <a href="https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-getprocessid" rel="nofollow noreferrer">Here</a>

Code example (note <a href="https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/262627d8-3418-4627-9218-4ffe110850b2" rel="nofollow noreferrer">DWORD definition</a> A DWORD is a 32-bit unsigned integer ):

<pre><code>DWORD MyGetProcessId(LPCTSTR ProcessName) // non-conflicting function name
{
 PROCESSENTRY32 pt;
 HANDLE hsnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
 pt.dwSize = sizeof(PROCESSENTRY32);
 if (Process32First(hsnap, &amp;pt)) { // must call this first
 do {
 if (!lstrcmpi(pt.szExeFile, ProcessName)) {
 CloseHandle(hsnap);
 return pt.th32ProcessID;
 }
 } while (Process32Next(hsnap, &amp;pt));
 }
 CloseHandle(hsnap); // close handle on failure
 return 0;
}

int main()
{
 DWORD pid = MyGetProcessId(TEXT("calc.exe"));
 std::cout &lt;&lt; pid;
 if (pid == 0) { printf("error 1"); getchar(); }//error
 return 0;
}
</code></pre>

blocks|key|472114|text|PID本身已经是整数。MSDN代码以十六进制格式输出PID。只需在以下2行中将0x%2508X更改为%25u，以输出十进制格式的PID：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|472115|_tprintf(+TEXT("\n+Process+ID+=+%25u"),+pe32.th32ProcessID+);
...
_tprintf(+TEXT("\n+Parent+process+ID+=+%25u"),+pe32.th32ParentProcessID+);|code-block|syntax|javascript|472116|entityMap^0|13|6|1C|2|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

The PIDs themselves are already integers. The MSDN code is outputting the PIDs in hexadecimal format. Simply change <code>0x%08X</code> to <code>%u</code> in the following 2 lines to output the PIDs in decimal format instead:

<pre class="lang-cpp prettyprint-override"><code>_tprintf( TEXT("\n Process ID = %u"), pe32.th32ProcessID );
...
_tprintf( TEXT("\n Parent process ID = %u"), pe32.th32ParentProcessID );
</code></pre>

I'm curious - how can I get the PID of an executable by name, or a list of PIDs, in C++ on Windows? I've referred to this documentation:

<a href="https://learn.microsoft.com/en-us/windows/win32/toolhelp/taking-a-snapshot-and-viewing-processes" rel="nofollow noreferrer">Taking a Snapshot and Viewing Processes</a>

When compiling and running this code, the process IDs are all in hexidecmial format. Is there a way to get the integer value of the PIDs instead? 

For instance, is there a way to get the value:

<pre><code>10200
</code></pre>

Instead of 

<pre><code>0x000027D8
</code></pre>

Do I have to actually convert the hexidecimcal value, or is there a way to extract the integer equivalent?

How to get integer PID of process?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我很好奇--如何才能在C++上按名称或PID列表获取可执行文件的PID？我参考了这些文档：在编译和运行此代码时，进程in都是十六进制格式的。是否有一种方法来代替获得PID的整数值？例如，是否有一种方法可以获得值：10200而不是0x000027D8是否必须实际转换十六进制值，还是有一种方法可以提取整数等效值？

问如何获得进程的整数PID？
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问如何获得进程的整数PID？EN