我试图在Windows控制台应用程序(C/C++)中获取父进程(完整路径)的名称。看起来应该管用,但它失败了,我看不出我做错了什么。它正在成功获取父PID,但未能获取名称。如有任何更正,将不胜感激。
#include <Windows.h>
#include <stdio.h>
#include <tlhelp32.h>
#include <Psapi.h>
DWORD getParentPID(DWORD pid)
{
HANDLE h = NULL;
PROCESSENTRY32 pe = { 0 };
DWORD ppid = 0;
pe.dwSize = sizeof(PROCESSENTRY32);
h = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if( Process32First(h, &pe))
{
do
{
if (pe.th32ProcessID == pid)
{
ppid = pe.th32ParentProcessID;
break;
}
} while( Process32Next(h, &pe));
}
CloseHandle(h);
return (ppid);
}
int getProcessName(DWORD pid, PUCHAR fname, DWORD sz)
{
HANDLE h = NULL;
int e = 0;
h = OpenProcess
(
PROCESS_QUERY_INFORMATION,
FALSE,
pid
);
if (h)
{
if (GetModuleFileNameEx(h, NULL, fname, sz) == 0)
e = GetLastError();
CloseHandle(h);
}
else
{
e = GetLastError();
}
return (e);
}
int main(int argc, char *argv[])
{
DWORD pid, ppid;
int e;
char fname[MAX_PATH] = {0};
pid = GetCurrentProcessId();
ppid = getParentPID(pid);
e = getProcessName(ppid, fname, MAX_PATH);
printf("PPID=%d Err=%d EXE={%s}\n", ppid, e, fname);
}
其他信息:
openprocess返回5(错误访问被拒绝)。如果按建议添加PurryVxMyRead,则返回299(ErrRyPultAlgRead)。我可以打开当前进程,但不能打开父进程。
最佳答案:
OpenProcessPROCESS_VM_READ
h = OpenProcess
(
PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
FALSE,
pid
);
同时看看梅卡普提到的可能的复制品