Example of NamedPipe in c Windows (based on https://stackoverflow.com/questions/2640642/c-implementing-named-pipes-using-the-win32-api)

client.c

#include <windows.h> 
#include <stdio.h> 
#include <tchar.h>
#define MAX_BUF 1024
#define pipename "\\\\.\\pipe\\LogPipe"
int main()
{
    HANDLE pipe = CreateFile(pipename, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);

    if (pipe == INVALID_HANDLE_VALUE)
    {
        printf("Error: %d", GetLastError());
    }

    char message [] = "Hi";

    DWORD numWritten;
    
    WriteFile(pipe, message, 3, &numWritten, NULL); 

    return 0;
}

server.c

#include <windows.h> 
#include <stdio.h> 
#include <tchar.h>
#define BUFSIZE 512
 #define pipename "\\\\.\\pipe\\LogPipe"
int main(int argc, TCHAR *argv[]) 
{ 
    while (true)
    {
        HANDLE pipe = CreateNamedPipe(pipename, PIPE_ACCESS_INBOUND | PIPE_ACCESS_OUTBOUND , PIPE_WAIT, 1, 1024, 1024, 120 * 1000, NULL);

        if (pipe == INVALID_HANDLE_VALUE)
        {
           printf("Error: %d", GetLastError());
        }

        char data[1024];
        DWORD numRead;

        ConnectNamedPipe(pipe, NULL);

        ReadFile(pipe, data, 1024, &numRead, NULL);

        if (numRead > 0)
            printf("%s\n", data);
            
        CloseHandle(pipe);
    }
  return 0; 
}