10-ReadProcess

#include <windows.h>
#include <stdio.h>

int main() { 

// BOOL CreateProcessW(
//   [in, optional]      LPCWSTR               lpApplicationName,
//   [in, out, optional] LPWSTR                lpCommandLine,
//   [in, optional]      LPSECURITY_ATTRIBUTES lpProcessAttributes,
//   [in, optional]      LPSECURITY_ATTRIBUTES lpThreadAttributes,
//   [in]                BOOL                  bInheritHandles,
//   [in]                DWORD                 dwCreationFlags,
//   [in, optional]      LPVOID                lpEnvironment,
//   [in, optional]      LPCWSTR               lpCurrentDirectory,
//   [in]                LPSTARTUPINFOW        lpStartupInfo,
//   [out]               LPPROCESS_INFORMATION lpProcessInformation
// );

STARTUPINFOW si = {0};
PROCESS_INFORMATION pi = {0};
int process_id;
if(!CreateProcessW(
    L"C:\\Windows\\System32\\notepad.exe",
    NULL,
    NULL,
    NULL,
    FALSE,
    BELOW_NORMAL_PRIORITY_CLASS,
    NULL,
    NULL,
    &si,
    &pi)) { 
        printf("Falied To create a process %ld",GetLastError());
    }
    else {
    printf("Process Created - PID %ld\n", pi.dwProcessId);
    process_id = pi.dwProcessId;
    }
// HANDLE OpenProcess(
//   [in] DWORD dwDesiredAccess,
//   [in] BOOL  bInheritHandle,
//   [in] DWORD dwProcessId
// );

// OpenProcess(
//     PROCESS_TERMINATE,
//     FALSE,
//     process_id
// );

/*
Other access levels you might use with OpenProcess include:

PROCESS_TERMINATE: Grants the right to terminate the process.
PROCESS_VM_READ: Grants the right to read the process's virtual memory.
PROCESS_VM_WRITE: Grants the right to write to the process's virtual memory.
PROCESS_VM_OPERATION: Grants the right to perform operations on the process's virtual memory, such as allocating or freeing memory.
PROCESS_SUSPEND_RESUME: Grants the right to suspend or resume the process.
*/

// We ll just terminate the process notepad we just created.
HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, process_id);
if (hProcess == NULL) {
        printf("Failed to open process handle: %ld\n", GetLastError());
        return 1;
    }

    BOOL success = TerminateProcess(hProcess, 0);
    if (!success) {
        printf("Failed to terminate process: %ld\n", GetLastError());
    } else {
        printf("Process terminated successfully\n");
    }

    CloseHandle(hProcess);

return 0;
}