Новичок
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Сообщений: 19
Регистрация: 10.7.2016
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при повторном использовании RegQueryValueEx к новому имени, значению выдает ошибку ERROR_MORE_DATA . с RegGetValue тоже самое. буфер в несколько раз больше. что делать? в чем может быть ошибка? | Код |
BOOL DisplayJobs (void)
/* Scan the job database file, reporting on the status of all jobs.
In the process remove all jobs that no longer exist in the system. */
{
HANDLE hProcess, hFile;
//JM_JOB jobRecord;
HKEY hResult;
DWORD jobNumber = 0, exitCode, regOpen, regCreate, Dispos, rSet, rGetId, rGetComm, val, sizebuf, ProcessID;
TCHAR jobMgtFileName[MAX_PATH], Key[MAX_PATH], SubKey[MAX_PATH], Nid[20] = { "ID" }, NCommandLine[20] = { "COMMAND" },CommandLine[1024], buf[10], c[1024];
OVERLAPPED regionStart;
WIN32_FIND_DATA fFile;
if (!GetJobMgtRegit(Key, SubKey)) return -1;
__try {
do
{ regOpen = RegOpenKeyEx(HKEY_CURRENT_USER, SubKey, NULL, KEY_ALL_ACCESS, &hResult);
if (regOpen != ERROR_SUCCESS)
{
ReportError(_T("Cannot open Register : "), 0, 1);
regCreate = RegCreateKeyEx(HKEY_CURRENT_USER, SubKey, NULL, NULL,
REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hResult, &Dispos);
if (regCreate != ERROR_SUCCESS)
if (Dispos == REG_OPENED_EXISTING_KEY)
ReportError(_T(" Key is Open "), 1, 1);
else
ReportError(_T("Filed open and create reg: "), 2, 1);
}
_tcscpy_s(NCommandLine, 20, "COMMAND");
memset(CommandLine, 0xcc, 1024);
_itoa_s(jobNumber, buf, 10, 10);
_tcscat_s(NCommandLine, _tcslen(NCommandLine) + 10, buf);
rGetComm = RegQueryValueEx(hResult, NCommandLine, NULL, &val, CommandLine, &sizebuf);
//rGetComm = RegGetValue(HKEY_CURRENT_USER, SubKey , NCommandLine, RRF_RT_ANY, NULL, CommandLine, &sizebuf);
if (rGetComm != ERROR_SUCCESS)
if (rGetComm == ERROR_MORE_DATA) {
ReportError(_T("Cannot Get Command : "), 0, 1); break;}
_tcscpy_s(Nid, 20, "ID");
_itoa_s(jobNumber, buf, 10, 10);
_tcscat_s(Nid, _tcslen(Nid) + 10, buf);
rGetId = RegQueryValueEx(hResult, Nid, NULL, NULL, &ProcessID, &sizebuf);
//rGetId = RegGetValue(HKEY_CURRENT_USER, SubKey, Nid, RRF_RT_ANY, NULL, &ProcessID, &sizebuf);
if (rGetId != ERROR_SUCCESS)
{
ReportError(_T("Cannot Get ID : "), 0, 1); break;
}
/* jobNumber won't exceed MAX_JOBS_ALLOWED as the file is
not allowed to grow that long */
hProcess = NULL;
if (ProcessID == 0) continue;
/* Obtain process status. */
hProcess = OpenProcess (PROCESS_ALL_ACCESS, FALSE, ProcessID);
if (hProcess != NULL) {
GetExitCodeProcess (hProcess, &exitCode);
CloseHandle (hProcess);
}
if (NULL == hProcess)
{ /* Back up one record. */
/* SetFilePoiner is more convenient here than SetFilePointerEx since the move is a short shift from the current position */
_tcscpy_s(Nid, 20, "ID");
_itoa_s(jobNumber, buf, 10, 10);
_tcscat_s(Nid, _tcslen(Nid) + 10, buf);
rSet = RegSetValueEx(hResult, Nid, NULL, REG_DWORD, &ProcessID, sizeof(ProcessID));
if (rSet != ERROR_SUCCESS)
ReportError(_T("cannot set ID: "), 0, 1);
_tcscpy_s(NCommandLine, 20, "COMMAND");
_itoa_s(jobNumber, buf, 10, 10);
_tcscat_s(NCommandLine, _tcslen(NCommandLine) + 10, buf);
rSet = RegSetValueEx(hResult, NCommandLine, NULL, REG_SZ, CommandLine, _tcslen(CommandLine));
if (rSet != ERROR_SUCCESS)
ReportError(_T("cannot set Command: "), 0, 1);
}
jobNumber++;
/* Show the job status. */
_tprintf (_T (" [%d] "), jobNumber);
if (NULL == hProcess)
_tprintf (_T (" Done"));
else if (exitCode != STILL_ACTIVE)
_tprintf (_T ("+ Done"));
else _tprintf (_T (" "));
/* Show the command. */
_tprintf (_T (" %s\n"), CommandLine);
/* Remove processes that are no longer in system. */
if (RegCloseKey(HKEY_CURRENT_USER) != ERROR_SUCCESS)
ReportError(_T("Error close reg"), 0, 1);
} while (rGetComm==ERROR_SUCCESS&&rGetId==ERROR_SUCCESS); /* End of while. */
} /* End of try. */
__finally { /* Release the lock on the file. */
RegCloseKey(hResult);
}
return TRUE;
}
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RegQueryValueEx, на повторном обращении ошибка 
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