I need to send commands to the STDIN of an already running process (specifically, a cmd instance) using C++ and the Windows API. However, I don’t want to launch the process myself — I only want to reference the process by its process ID (PID) in my program and interact with its STDIN. I do not need the output to be visible, only for the commands to run. How can I achieve this?

I’m trying to use the createFile and it says it can’t open it (Could not open file (error 2)). I tried to make the fileName the name of the file and the path to it. The file is just a text file with some words in it. I tried to “Verify File Access”, “Testing with a Simplified Path (LPCSTR fileName = "example.txt")”, “Check File Path Syntax (LPCSTR fileName = "C:\Users\YourUsername\Desktop\example.txt")”, “Confirm File Location”, “Confirm Working Directory”.

I’m trying to use the createFile and it says it can’t open it (Could not open file (error 2)). I tried to make the fileName the name of the file and the path to it. The file is just a text file with some words in it. I tried to “Verify File Access”, “Testing with a Simplified Path (LPCSTR fileName = "example.txt")”, “Check File Path Syntax (LPCSTR fileName = "C:\Users\YourUsername\Desktop\example.txt")”, “Confirm File Location”, “Confirm Working Directory”.

I’m making a YouTube player and I need the following:

im working on a remote desk protocol and need to share the keyboard input. im just starting but i know i will meet a lot of troubles later when needing to share shortcuts like ctrl+c, alt+tab etc…

I wrote a code to resolve a window style value to text macro, but the output is wildly different from the style value; why and how to fix it?

I have been using the ZwReadVirtualMemory() function to read the memory of different processes. However, I’ve encountered an issue: this function appears to only work if the target process is of the same architecture (i.e., x86 or x64) as the program making the call.

I attempted to implement the solution from this Stack Overflow answer. However, I am encountering an issue where it only resolves the path to the executable (exe), without including any arguments that may be present. Is there a way to obtain the full “raw” target, including both the executable path and its arguments, rather than just the executable path alone?

I am asking this question again despite this existing answer, because it is outdated. The RTL_USER_PROCESS_PARAMETERS structure no longer includes a WindowTitle field. I am wondering if a solution which doesn’t require code injection into the target process still exists.

i am creating a Win32 program in C, and i had the error 126 when executing the following code: