我仍然是C的初学者,我发现一个有用的代码在C whcih帮助我得到一个关键值,但我试图打印(“SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion” )与所有它的值和数据,但我只能得到没有数据的值,我想获得这两个值,它的数据就像(ProductName:Windows 7,SystemRoot:C:\ Windows等...),如果有人可以用这段代码帮助我,我会很感激,我使用了“RegQueryValueEx”,但它只给了我一个单一值的特定数据。枚举注册表项与它的数据在C
感谢
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#define MAX_KEY_LENGTH 255
#define MAX_VALUE_NAME 16383
void QueryKey(HKEY hKey)
{
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 cbSecurityDescriptor; // size of security descriptor
FILETIME ftLastWriteTime; // last write time
DWORD i, retCode;
TCHAR achValue[MAX_VALUE_NAME];
DWORD cchValue = MAX_VALUE_NAME;
// Get the class name and the value count.
retCode = RegQueryInfoKey(hKey,achClass,&cchClassName,NULL,&cSubKeys,&cbMaxSubKey,&cchMaxClass,&cValues,&cchMaxValue,&cbMaxValueData,&cbSecurityDescriptor,&ftLastWriteTime);
// Enumerate the subkeys, until RegEnumKeyEx fails.
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,&ftLastWriteTime);
if (retCode == ERROR_SUCCESS)
{
_tprintf(TEXT("(%d) %s\n"), i+1, achKey);
}
}
}
// Enumerate the key values.
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, NULL, NULL, NULL);
if (retCode == ERROR_SUCCESS)
{
_tprintf(TEXT("(%d) %s\n"), i+1, achValue);
}
}
}
}
void _tmain(void)
{
HKEY hTestKey;
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,
TEXT("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"),0, KEY_READ, &hTestKey) == ERROR_SUCCESS
)
{
QueryKey(hTestKey);
}
RegCloseKey(hTestKey);
}
花一些时间来学习什么都那些看起来像是空的奇序列的功能,特别是参数,其实* *做。它可能证明是有用的。 – WhozCraig
其实我知道大部分的功能,我知道如何从RegQueryValueEX函数获取单个数据的值,但我只是不知道如何获取所有数据而不是单一的RegQueryValueEX – Student