问题
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.
回答1:
You need to set a flag (SEE_MASK_NOCLOSEPROCESS) in exInfo.fMask
来源：https://stackoverflow.com/questions/7620322/get-pid-from-shellexecute