_build/extensions/cFunctions/registry_funcs.c
#include "Python.h"
// QueryKey - Enumerates the subkeys of key and its associated values.
// hKey - Key whose subkeys and values are to be enumerated.
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#define MAX_KEY_LENGTH 255
#define MAX_VALUE_NAME 16383
PyObject *
RegEnumKeysAndValues(PyObject *self, PyObject *args)
{
HKEY hKey;
PyObject *pyKeyNameList;
PyObject *pyValueNameList;
PyObject *pyTemp;
TCHAR achKey[MAX_KEY_LENGTH]; // buffer for subkey name
DWORD cbName; // size of name string
TCHAR achClass[MAX_PATH] = TEXT(""); // buffer for class name
DWORD cchClassName = MAX_PATH; // size of class string
DWORD cSubKeys=0; // number of subkeys
DWORD cbMaxSubKey; // longest subkey size
DWORD cchMaxClass; // longest class string
DWORD cValues; // number of values for key
DWORD cchMaxValue; // longest value name
DWORD cbMaxValueData; // longest value data
DWORD cType;
DWORD cSubSubValues, cSubSubKeys;
HKEY hSubKey;
DWORD i, retCode;
TCHAR achValue[MAX_VALUE_NAME];
DWORD cchValue = MAX_VALUE_NAME;
if (!PyArg_ParseTuple(args, "k", &hKey))
return NULL;
// Get the class name and the value count.
retCode = RegQueryInfoKey(
hKey, // key handle
achClass, // buffer for class name
&cchClassName, // size of class string
NULL, // reserved
&cSubKeys, // number of subkeys
&cbMaxSubKey, // longest subkey size
&cchMaxClass, // longest class string
&cValues, // number of values for this key
&cchMaxValue, // longest value name
&cbMaxValueData, // longest value data
NULL, // security descriptor
NULL); // last write time
// Enumerate the subkeys, until RegEnumKeyEx fails.
pyKeyNameList = PyList_New(cSubKeys);
if (cSubKeys)
{
//printf( "\nNumber of subkeys: %d\n", cSubKeys);
for (i=0; i<cSubKeys; i++)
{
cbName = MAX_KEY_LENGTH;
retCode = RegEnumKeyEx(
hKey,
i,
achKey,
&cbName,
NULL,
NULL,
NULL,
NULL);
if (retCode == ERROR_SUCCESS)
{
retCode = RegOpenKeyEx(hKey, achKey, 0, KEY_READ, &hSubKey);
retCode = RegQueryInfoKey(
hSubKey, // key handle
NULL, // buffer for class name
NULL, // size of class string
NULL, // reserved
&cSubSubKeys, // number of subkeys
NULL, // longest subkey size
NULL, // longest class string
&cSubSubValues, // number of values for this key
NULL, // longest value name
NULL, // longest value data
NULL, // security descriptor
NULL); // last write time
RegCloseKey(hSubKey);
pyTemp = Py_BuildValue("(sll)", achKey, cSubSubKeys, cSubSubValues);
PyList_SET_ITEM(pyKeyNameList, i, pyTemp);
//_tprintf(TEXT("(%d) %s\n"), i+1, achKey);
}
}
}
// Enumerate the key values.
pyValueNameList = PyList_New(cValues);
if (cValues)
{
//printf( "\nNumber of values: %d\n", cValues);
for (i=0, retCode=ERROR_SUCCESS; i<cValues; i++)
{
cchValue = MAX_VALUE_NAME;
achValue[0] = '\0';
retCode = RegEnumValue(
hKey,
i,
achValue,
&cchValue,
NULL,
&cType,
NULL,
NULL);
if (retCode == ERROR_SUCCESS )
{
pyTemp = Py_BuildValue("(si)", achValue, cType);
PyList_SET_ITEM(pyValueNameList, i, pyTemp);
//_tprintf(TEXT("(%d) %s\n"), i+1, achValue);
}
}
}
return Py_BuildValue("(OO)", pyKeyNameList, pyValueNameList);
}