win32里,关于获取进程句柄的方法openpeocess总是返回失败

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

//成功返回TRUE,失败返回FALSE
BOOL AdjustPrivilege(LPCWSTR PrivilegeName) {
    HANDLE hToken;
    TOKEN_PRIVILEGES tp;
    LUID luid;
    BOOL ret;

    // 获取当前进程的访问令牌
    if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) {
        printf("OpenProcessToken failed. Error: %u\n", GetLastError());
        return FALSE;
    }

    // 获取指定权限的 LUID
    if (!LookupPrivilegeValueW(NULL, PrivilegeName, &luid)) {
        printf("LookupPrivilegeValue failed. Error: %u\n", GetLastError());
        CloseHandle(hToken);
        return FALSE;
    }

    // 填充 TOKEN_PRIVILEGES 结构
    tp.PrivilegeCount = 1;
    tp.Privileges[0].Luid = luid;
    tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

    // 调整令牌特权
    if (!AdjustTokenPrivileges(hToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), NULL, NULL)) {
        printf("AdjustTokenPrivileges failed. Error: %u\n", GetLastError());
        CloseHandle(hToken);
        return FALSE;
    }

    CloseHandle(hToken);
    return TRUE;
}