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Questions tagged [win32-process]

315 questions
21
votes
6 answers

CreateProcess such that child process is killed when parent is killed?

Is there a way to call CreateProcess such that killing the parent process automatically kills the child process? Perhaps using Create Process Flags? Edit The solution is to create a job object, place both parent and child in the job object. Whent…
Suraj
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Error: bcrypt_lib.node is not a valid Win32 application

I have a nodejs project on my windows machine. Where upon attempting to run the project this error appears involving bcrypt and win32. [nodemon] 2.0.2 [nodemon] to restart at any time, enter rs [nodemon] watching dir(s): . [nodemon] watching…
Mayyar Al-Atari
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12
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2 answers

Win32 Named mutex not released when process crashes

I have 2 processes (A, B) sharing the same mutex (using WaitForSingleObject / ReleaseMutex calls). Everything works fine, but when process A crashes, process B is humming along happily. When I restart process A, there's a deadlock. Deeper…
Sergiy Migdalskiy
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12
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3 answers

Win32, ReadFile from pipe block even after child terminated

I have a simple program (in C) that create two child process, wait on an inherited pipe each, and put the output in a file. Everything works well, except that after some write/read cycle on the two pipe, when the child ends, the call to ReadFile…
ArtoAle
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9
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1 answer

How to make the feature 'Replace Task Manager' of Process Explorer?

Process Explorer has a nice feature Replace Task Manager I just wondered how Mark Russinovich implements this. What trick is used for implementing this?
Benjamin
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8
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1 answer

How do I change the priority of a process?

Can anyone provide a Delphi example of code that changes the priority class of a process? I need to get the process by name from the Windows XP Task manager and change its priority using delphi code.
mortalis
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1 answer

Get the Cpu usage of each process from wmi

I found many sources to get the cpu usage of each process. in general there are many ways to get the cpu usage of process . percentprocessortime from win32_perfformatteddata_perfproc_process performancecounter class in system.diagnostics by manual…
Gomathipriya
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2 answers

Kill process and sub-processes in Ruby on Windows

Currently I'm doing this in one command prompt require 'win32/process' p = Process.spawn("C:/ruby193/bin/bundle exec rails s") puts p Process.waitpid(p) and then in another require 'win32/process' Process.kill(1,

) The problem is that the…

Ben
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7
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2 answers

DEF file syntax error in visual studio 2012

I have a vs project which wouldn't compile once I upgraded to visual studio 2012. Its a win32 dll project and it complains about the def file. This is the def file, LIBRARY test.dll VERSION 3.1.4.1 EXPORTS addNumbers @1 and this is the error I get…
S_R
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6
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2 answers

Find all threads of a process given process id

I am trying to find if there is a better way to find all thread ids that belong to the current process. It looks like using CreateToolhelp32Snapshot with TH32CS_SNAPTHREAD and iterating over the threads to check if the thread's process id is equal…
Abhinay K Reddyreddy
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6
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2 answers

timespec equivalent for windows

I am porting my application to windows from unix and I have run into a wall. In my application I need to find time in microseconds (the whole application heavily depends on it due to it being a high precision application). Previously I was using…
Quillion
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6
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2 answers

Lightweight method to use Amd64 instructions under 32-bit Windows?

For some CPU-bound code using 64-bit variables, it is beneficial to use the Amd64 instruction set rather than x86. How can it be done under 32-bit Windows (e.g. Windows XP SP3)? Of course I assume a modern, Amd64-enabled CPU. I'm excluding the…
fgrieu
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7 answers

Deny Access to Kiosk program process

I have a kiosk app and have to disable task manager always to prevent closing the program by users . But some users need the TaskManager to close hanging programs. Any help would be appropriated. However, I am sure there is a function in…
user586399
5
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0 answers

Why is the WMI Win32_Process CommandLine property null for only some processes of other users?

I'm using this C# code to get the Command Line parameters of a running process: public static void GetProcessesCommandLine(string processName) { string query = $@"SELECT CommandLine,ProcessId FROM Win32_Process WHERE Name = '{processName}'"; …
Master_T
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Using WMI, how can I determine whether a remote process is 32-bit or 64-bit?

I have a collection of win32_process objects queried from a remote machine using WMI. How do I determine whether each process is 32-bit or 64-bit?
musaul
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