windows 从进程 ID 中获取进程可执行文件名称
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Get a process executable name from process ID
提问by jgpt
I am currently trying to get the names of a list of programs whose pid I have.
我目前正在尝试获取我拥有其 pid 的程序列表的名称。
The program is run as administrator, but GetModuleFileNameExfails with error code 5.
该程序以管理员身份运行，但GetModuleFileNameEx失败并显示错误代码 5。
I open the program with OpenProcess(PROCESS_TERMINATE,PROCESS_QUERY_INFORMATION)and I have the SE_DEBUG_PRIVILEGEenabled.
我打开程序OpenProcess(PROCESS_TERMINATE,PROCESS_QUERY_INFORMATION)并SE_DEBUG_PRIVILEGE启用了。
回答by hmjd
The process handle passed to GetModuleFileNameEx()requires PROCESS_QUERY_INFORMATIONand PROCESS_VM_READaccess rights.
传递给进程句柄）GetModuleFileNameEx（需要PROCESS_QUERY_INFORMATION和PROCESS_VM_READ访问权限。
This worked for me:
这对我有用：
HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
FALSE,
6088);
if (0 == h)
{
std::cerr << "OpenProcess() failed: " << GetLastError() << "\n";
}
else
{
char exe_path[2048] = {};
if (GetModuleFileNameEx(h, 0, exe_path, sizeof(exe_path) - 1))
{
std::cout << exe_path << "\n";
}
else
{
std::cerr << "GetModuleFileNameEx() failed: " <<
GetLastError() << "\n";
}
CloseHandle(h);
}
However, as others have pointed out (and is also stated in documentation for GetModuleFileNameEx()) there are safer ways to acquire this information:
然而，正如其他人所指出的（在 GetModuleFileNameEx() 的文档中也有说明），有更安全的方法来获取这些信息：
回答by pritaeas
According to this threadthat error is returned when there's not enough information to return the filename.
根据此线程，当没有足够的信息返回文件名时，将返回错误。
