从ShellExecute获取PID [英] Get PID from ShellExecute
问题描述
我从ShellExecuteEx启动一个进程,我真的需要获得ProcessID(它是这个类的要求的一部分)。
I am launching a process from ShellExecuteEx, and I really need to get the ProcessID (It's part of the requirement of this class).
code> SHELLEXECUTEINFO 返回null。
例如,如果我使用这个代码:
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);
它启动CMD.exe。但现在我需要得到它的PID。
exInfo.hwnd
正在返回 0
和 exInfo.hProcess
正在返回 null
。
这是正常的行为吗?
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?
我真的不想诉诸使用CreateProcess(),因为我的函数也应该能够启动文档, C:\doc1.docx。这只是一个方法,我不能预测将要启动什么(所以我不能预先知道窗口标题/类名,从那里获得hWnd,然后获得PID)。
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).
有人可以指出我的错误吗?
Could somebody kindly point out my mistake? Thanks.
推荐答案
您需要在exInfo.fMask中设置标志(SEE_MASK_NOCLOSEPROCESS)
You need to set a flag (SEE_MASK_NOCLOSEPROCESS) in exInfo.fMask
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