从 ShellExecute 获取 PID

发布于 2024-12-07 16:36:48 字数 578 浏览 0 评论 0原文

我正在从 ShellExecuteEx 启动一个进程，我确实需要获取 ProcessID（这是此类要求的一部分）。

不知何故，所有重要的 SHELLEXECUTEINFO 都返回 null。例如，如果我使用这段代码：

exInfo.lpVerb = "open";
exInfo.lpFile = "C:\\Windows\\system32\\cmd.exe";
exInfo.nShow  = 5;

ShellExecuteExA(exInfo);

它启动了 CMD.exe。但现在我需要获取它的PID。 exInfo.hwnd 返回 0，exInfo.hProcess 返回 null。这是正常行为吗？

我真的不想诉诸使用 CreateProcess()，因为我的函数还应该能够启动诸如“C:\doc1.docx”之类的文档。这只是一种方法，我无法预测将要启动的内容（因此我无法事先知道窗口标题/类名，从那里获取 hWnd 然后获取 PID）。

有人可以指出我的错误吗？谢谢。

原文

I am launching a process from ShellExecuteEx, and I really need to get the ProcessID (It's part of the requirement of this class).

Somehow all the important SHELLEXECUTEINFO returns null.
So for example if I use this code:

exInfo.lpVerb = "open";
exInfo.lpFile = "C:\\Windows\\system32\\cmd.exe";
exInfo.nShow  = 5;

ShellExecuteExA(exInfo);

It launched CMD.exe. But now I need to get it's PID.
exInfo.hwnd is returning 0, and exInfo.hProcess is returning null.
Is this normal behaviour?

I don't really want to resort to using CreateProcess(), because my function should also be able to launch documents like "C:\doc1.docx". This is just a method, in which I cannot predict what is going to be launched (So I cannot know the window title/classname from beforehand, get the hWnd from there and then get the PID).

Could somebody kindly point out my mistake? Thanks.

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