再问一个在注册表目录下，如何新建一个DWORD的值呢

[yangw150]

我想在HKEY_CURRENT_USER\Software\Sysinternals\NewSID目录下新建一个DWORD的值，赋值为1，看了一下网上的，大多数都是停留在如何新建注册表的目录上，好像没有说怎么在目录下新建一个值

[图灵狗]

一回事跟新建还是已有没关系的，参考http://www.vckbase.com/index.php/wv/446

[赵4老师]

RegCreateKeyEx The RegCreateKeyEx function creates the specified key. If the key already exists in the registry, the function opens it. LONG RegCreateKeyEx( HKEY hKey, // handle to an open key LPCTSTR lpSubKey, // address of subkey name DWORD Reserved, // reserved LPTSTR lpClass, // address of class string DWORD dwOptions, // special options flag REGSAM samDesired, // desired security access LPSECURITY_ATTRIBUTES lpSecurityAttributes, // address of key security structure PHKEY phkResult, // address of buffer for opened handle LPDWORD lpdwDisposition // address of disposition value buffer ); Parameters hKey Handle to a currently open key or one of the following predefined reserved handle values: HKEY_CLASSES_ROOT HKEY_CURRENT_CONFIG HKEY_CURRENT_USER HKEY_LOCAL_MACHINE HKEY_USERS Windows NT: HKEY_PERFORMANCE_DATA Windows 95 and Windows 98: HKEY_DYN_DATA The key opened or created by the RegCreateKeyEx function is a subkey of the key identified by the hKey parameter. lpSubKey Pointer to a null-terminated string specifying the name of a subkey that this function opens or creates. The subkey specified must be a subkey of the key identified by the hKey parameter. This subkey must not begin with the backslash character ('\'). This parameter cannot be NULL. Reserved Reserved; must be zero. lpClass Pointer to a null-terminated string that specifies the class (object type) of this key. This parameter is ignored if the key already exists. dwOptions Specifies special options for the key. This parameter can be one of the following values. Value Meaning REG_OPTION_NON_VOLATILE This key is not volatile; this is the default. The information is stored in a file and is preserved when the system is restarted. The RegSaveKey function saves keys that are not volatile. REG_OPTION_VOLATILE Windows NT: This key is volatile; the information is stored in memory and is not preserved when the system is restarted. The RegSaveKey function does not save volatile keys. This flag is ignored if the key already exists. Windows 95: This value is ignored. If REG_OPTION_VOLATILE is specified, the RegCreateKeyEx function creates a nonvolatile key and returns ERROR_SUCCESS. REG_OPTION_BACKUP_RESTORE Windows NT: If this flag is set, the function ignores the samDesired parameter and attempts to open the key with the access required to backup or restore the key. If the calling thread has the SE_BACKUP_NAME privilege enabled, the key is opened with ACCESS_SYSTEM_SECURITY and KEY_READ access. If the calling thread has the SE_RESTORE_NAME privilege enabled, the key is opened with ACCESS_SYSTEM_SECURITY and KEY_WRITE access. If both privileges are enabled, the key has the combined accesses for both privileges. samDesired Specifies an access mask that specifies the desired security access for the new key. This parameter can be a combination of the following values: Value Meaning KEY_ALL_ACCESS Combination of KEY_QUERY_VALUE, KEY_ENUMERATE_SUB_KEYS, KEY_NOTIFY, KEY_CREATE_SUB_KEY, KEY_CREATE_LINK, and KEY_SET_VALUE access. KEY_CREATE_LINK Permission to create a symbolic link. KEY_CREATE_SUB_KEY Permission to create subkeys. KEY_ENUMERATE_SUB_KEYS Permission to enumerate subkeys. KEY_EXECUTE Permission for read access. KEY_NOTIFY Permission for change notification. KEY_QUERY_VALUE Permission to query subkey data. KEY_READ Combination of KEY_QUERY_VALUE, KEY_ENUMERATE_SUB_KEYS, and KEY_NOTIFY access. KEY_SET_VALUE Permission to set subkey data. KEY_WRITE Combination of KEY_SET_VALUE and KEY_CREATE_SUB_KEY access. lpSecurityAttributes Pointer to a SECURITY_ATTRIBUTES structure that determines whether the returned handle can be inherited by child processes. If lpSecurityAttributes is NULL, the handle cannot be inherited. Windows NT: The lpSecurityDescriptor member of the structure specifies a security descriptor for the new key. If lpSecurityAttributes is NULL, the key gets a default security descriptor. phkResult Pointer to a variable that receives a handle to the opened or created key. When you no longer need the returned handle, call the RegCloseKey function to close it. lpdwDisposition Pointer to a variable that receives one of the following disposition values: Value Meaning REG_CREATED_NEW_KEY The key did not exist and was created. REG_OPENED_EXISTING_KEY The key existed and was simply opened without being changed. Return Values If the function succeeds, the return value is ERROR_SUCCESS. If the function fails, the return value is a nonzero error code defined in WINERROR.H. You can use the FormatMessage function with the FORMAT_MESSAGE_FROM_SYSTEM flag to get a generic description of the error. Remarks The key that the RegCreateKeyEx function creates has no values. An application can use the RegSetValue or RegSetValueEx function to set key values. The key identified by the hKey parameter must have been opened with KEY_CREATE_SUB_KEY access. To open the key, use the RegCreateKeyEx or RegOpenKeyEx function. An application cannot create a key under HKEY_USERS or HKEY_LOCAL_MACHINE. An application can use RegCreateKeyEx to temporarily lock a portion of the registry. When the locking process creates a new key, it receives the disposition value REG_CREATED_NEW_KEY, indicating that it "owns" the lock. Another process attempting to create the same key receives the disposition value REG_OPENED_EXISTING_KEY, indicating that another process already owns the lock. Windows CE: The dwOptions and samDesired parameters are ignored and should be set to zero to ensure compatibility with future versions of Windows CE. The lpSecurityAttributes parameter should be set to NULL. Windows CE automatically assigns the key a default security descriptor. QuickInfo Windows NT: Requires version 3.1 or later. Windows: Requires Windows 95 or later. Windows CE: Requires version 1.0 or later. Header: Declared in winreg.h. Import Library: Use advapi32.lib. Unicode: Implemented as Unicode and ANSI versions on Windows NT. See Also Registry Overview, Registry Functions, RegCloseKey, RegCreateKey, RegDeleteKey, RegOpenKey, RegOpenKeyEx, RegSaveKey, SECURITY_ATTRIBUTES

[max_min_]

其实都差不多的 看看这个技术演练 http://msdn.microsoft.com/zh-cn/library/d90d0tf7%28v=vs.90%29.aspx

[yangw150]

搞不定呀，请帮忙看看错在哪里了，可以直接运行的 SetValue_D 函数是2楼帖子里的，每次都弹出"无法查询有关的注册表信息" HKEY hKey; int SetValue_D (struct HKEY__*ReRootKey,TCHAR *ReSubKey,TCHAR *ReValueName,int ReSetContent_D) { int i=0; //操作结果：0==succeed if(RegOpenKeyEx(ReRootKey,ReSubKey,0,KEY_WRITE,&hKey)==ERROR_SUCCESS) { if(RegSetValueEx(hKey,ReValueName,NULL,REG_DWORD,(const unsigned char *)ReSetContent_D,4)!=ERROR_SUCCESS) { AfxMessageBox("错误：无法设置有关的注册表信息"); i=1; } RegCloseKey(ReRootKey); } else { AfxMessageBox("错误：无法查询有关的注册表信息"); i=1; } return i; } 这是调用： if (SetValue_D (HKEY_CURRENT_USER,"\\Software\\Sysinternals\\NewSID\\","EulaAccepted",1) != 0) { AfxMessageBox("操作失败！"); } 各位可以新建一个控制台程序，要支持MFC的，将代码考进去就能运行啦 我是想在HKEY_CURRENT_USER\Software\Sysinternals\NewSID目录下新建一个EulaAccepted的DWORD的值，赋值为1

[赵4老师]

RegSetValueEx The RegSetValueEx function sets the data and type of a specified value under a registry key. LONG RegSetValueEx( HKEY hKey, // handle to key to set value for LPCTSTR lpValueName, // name of the value to set DWORD Reserved, // reserved DWORD dwType, // flag for value type CONST BYTE *lpData, // address of value data DWORD cbData // size of value data ); Parameters hKey Handle to a currently open key or any of the following predefined reserved handle values: HKEY_CLASSES_ROOT HKEY_CURRENT_CONFIG HKEY_CURRENT_USER HKEY_LOCAL_MACHINE HKEY_USERS Windows NT: HKEY_PERFORMANCE_DATA Windows 95 and Windows 98: HKEY_DYN_DATA lpValueName Pointer to a string containing the name of the value to set. If a value with this name is not already present in the key, the function adds it to the key. If lpValueName is NULL or an empty string, "", the function sets the type and data for the key's unnamed or default value. Windows 95 and Windows 98: On Windows 95, the type of a key's default value is always REG_SZ, so the dwType parameter must specify REG_SZ for an unnamed value. On Windows 98, an unnamed value can be of any type. Windows NT: Registry keys do not have default values, but they can have one unnamed value, which can be of any type. Reserved Reserved; must be zero. dwType Specifies the type of information to be stored as the value's data. This parameter can be one of the following values: Value Meaning REG_BINARY Binary data in any form. REG_DWORD A 32-bit number. REG_DWORD_LITTLE_ENDIAN A 32-bit number in little-endian format. This is equivalent to REG_DWORD. In little-endian format, a multi-byte value is stored in memory from the lowest byte (the "little end") to the highest byte. For example, the value 0x12345678 is stored as (0x78 0x56 0x34 0x12) in little-endian format. Windows NT, Windows 95, and Windows 98 are designed to run on little-endian computer architectures. A user may connect to computers that have big-endian architectures, such as some UNIX systems. REG_DWORD_BIG_ENDIAN A 32-bit number in big-endian format. In big-endian format, a multi-byte value is stored in memory from the highest byte (the "big end") to the lowest byte. For example, the value 0x12345678 is stored as (0x12 0x34 0x56 0x78) in big-endian format. REG_EXPAND_SZ A null-terminated string that contains unexpanded references to environment variables (for example, "%PATH%"). It will be a Unicode or ANSI string depending on whether you use the Unicode or ANSI functions. To expand the environment variable references, use theExpandEnvironmentStrings function. REG_LINK A Unicode symbolic link. REG_MULTI_SZ An array of null-terminated strings, terminated by two null characters. REG_NONE No defined value type. REG_RESOURCE_LIST A device-driver resource list. REG_SZ A null-terminated string. It will be a Unicode or ANSI string depending on whether you use the Unicode or ANSI functions. Do not use the REG_SZ type to store hard-coded paths to the system root directory or to the drive containing the system files. Instead, use the REG_EXPAND_SZ type with environment variables such as "%SystemRoot%". This ensures that the path will be up-to-date even if the user remaps the system drive to a different drive letter. lpData Pointer to a buffer containing the data to be stored with the specified value name. cbData Specifies the size, in bytes, of the information pointed to by the lpData parameter. If the data is of type REG_SZ, REG_EXPAND_SZ, or REG_MULTI_SZ, cbData must include the size of the terminating null character. Return Values If the function succeeds, the return value is ERROR_SUCCESS. If the function fails, the return value is a nonzero error code defined in WINERROR.H. You can use the FormatMessage function with the FORMAT_MESSAGE_FROM_SYSTEM flag to get a generic description of the error. Remarks Value lengths are limited by available memory. Long values (more than 2048 bytes) should be stored as files with the filenames stored in the registry. This helps the registry perform efficiently. Application elements such as icons, bitmaps, and executable files should be stored as files and not be placed in the registry. The key identified by the hKey parameter must have been opened with KEY_SET_VALUE access. To open the key, use the RegCreateKeyEx or RegOpenKeyEx function. If dwType is the REG_SZ, REG_MULTI_SZ or REG_EXPAND_SZ type and the ANSI version of this function is used (either by explicitly calling RegSetValueExA or by not defining UNICODE before including the WINDOWS.H file), the data pointed to by the lpData parameter must be an ANSI character string. The string is converted to Unicode before it is stored in the registry. QuickInfo Windows NT: Requires version 3.1 or later. Windows: Requires Windows 95 or later. Windows CE: Requires version 1.0 or later. Header: Declared in winreg.h. Import Library: Use advapi32.lib. Unicode: Implemented as Unicode and ANSI versions on Windows NT. See Also Registry Overview, Registry Functions, RegCreateKeyEx, RegFlushKey, RegOpenKeyEx, RegQueryValue, RegQueryValueEx, RegSetValue

[赵4老师]

The FormatMessage function can be used to obtain error message strings for the system error codes returned by GetLastError, as shown in the following sample code. LPVOID lpMsgBuf; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language (LPTSTR) &lpMsgBuf, 0, NULL ); // Process any inserts in lpMsgBuf. // ... // Display the string. MessageBox( NULL, (LPCTSTR)lpMsgBuf, "Error", MB_OK | MB_ICONINFORMATION ); // Free the buffer. LocalFree( lpMsgBuf ); Within the message text, several escape sequences are supported for dynamically formatting the message. These escape sequences and their meanings are shown in the following table. All escape sequences start with the percent character (%). Escape Sequence Meaning %0 Terminates a message text line without a trailing newline character. This escape sequence can be used to build up long lines or to terminate the message itself without a trailing newline character. It is useful for prompt messages. %n!printf format string! Identifies an insert. The value of n can be in the range 1 through 99. The printf format string (which must be bracketed by exclamation marks) is optional and defaults to !s! if not specified. The printf format string can contain the * specifier for either the precision or the width component. If * is specified for one component, the FormatMessage function uses insert %n+1; it uses %n+2 if * is specified for both components. Floating-point printf format specifiers — e, E, f, and g — are not supported. The workaround is to to use the sprintf function to format the floating-point number into a temporary buffer, then use that buffer as the insert string. Any other nondigit character following a percent character is formatted in the output message without the percent character. Following are some examples: Format string Resulting output %% A single percent sign in the formatted message text. %n A hard line break when the format string occurs at the end of a line. This format string is useful when FormatMessage is supplying regular line breaks so the message fits in a certain width. %space A space in the formatted message text. This format string can be used to ensure the appropriate number of trailing spaces in a message text line. %. A single period in the formatted message text. This format string can be used to include a single period at the beginning of a line without terminating the message text definition. %! A single exclamation point in the formatted message text. This format string can be used to include an exclamation point immediately after an insert without its being mistaken for the beginning of a printf format string. Windows CE: The FormatMessage function requires a message definition as input. The message definition can come from a buffer passed into the function. It can come from a message table resource in an already loaded module. Or the caller can ask the function to search the system's message table resources for the message definition. FormatMessage finds the message definition in a message table resource based on a message identifier and a language identifier. FormatMessage copies the formatted message text to an output buffer, processing any embedded insert sequences if requested.

[yangw150]

搞定啦，分享一下成果 HKEY hKey,hSysinternals,hNewSID; DWORD dwDisposition; HKEY hd = HKEY_CURRENT_USER; unsigned char vari[4] = {1}; LPCTSTR data_set="Software\\"; long ret=RegOpenKeyEx(HKEY_CURRENT_USER,data_set,0,KEY_ALL_ACCESS,&hKey); if(ret!=ERROR_SUCCESS) { printf("不能打开注册表!","错误"); return 0; } DWORD dwDisp; ret=RegCreateKeyEx(hKey, "Sysinternals", 0,NULL,REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS,NULL,&hSysinternals,&dwDisp); if(ret!=ERROR_SUCCESS) { MessageBox(NULL,"创建子键失败!","错误",MB_OK); return 0; } ret=RegCreateKeyEx(hSysinternals, "NewSID", 0,NULL,REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS,NULL,&hNewSID,&dwDisp); if(ret!=ERROR_SUCCESS) { MessageBox(NULL,"创建子键失败!","错误",MB_OK); return 0; } ret = RegCreateKeyEx(hd,"EulaAccepted",0,"Software\\Sysinternals\\NewSID",REG_OPTION_NON_VOLATILE,KEY_READ|KEY_WRITE,NULL,&hd,&dwDisposition); if (ret != ERROR_SUCCESS) { MessageBox(NULL,"创建子键失败!","错误",MB_OK); return 0; } ret = ::RegSetValueEx(hNewSID,"EulaAccepted",NULL,REG_DWORD,(LPBYTE)(vari),4); if (ret != ERROR_SUCCESS) { MessageBox(NULL,"设置失败!","错误",MB_OK); return 0; } RegCloseKey(hKey); RegCloseKey(hSysinternals); RegCloseKey(hNewSID);

[赵4老师]

引用 8 楼 yangw150 的回复:

搞定啦，分享一下成果 HKEY hKey,hSysinternals,hNewSID; DWORD dwDisposition; HKEY hd = HKEY_CURRENT_USER; unsigned char vari[4] = {1}; LPCTSTR data_set="Software\\"; long ret=RegOpenKeyEx(HKEY_CURRENT_USER,data_set,0,KEY_ALL_ACCESS,&hKey); if(ret!=ERROR_SUCCESS) { printf("不能打开注册表!","错误"); return 0; } DWORD dwDisp; ret=RegCreateKeyEx(hKey, "Sysinternals", 0,NULL,REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS,NULL,&hSysinternals,&dwDisp); if(ret!=ERROR_SUCCESS) { MessageBox(NULL,"创建子键失败!","错误",MB_OK); return 0; } ret=RegCreateKeyEx(hSysinternals, "NewSID", 0,NULL,REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS,NULL,&hNewSID,&dwDisp); if(ret!=ERROR_SUCCESS) { MessageBox(NULL,"创建子键失败!","错误",MB_OK); return 0; } ret = RegCreateKeyEx(hd,"EulaAccepted",0,"Software\\Sysinternals\\NewSID",REG_OPTION_NON_VOLATILE,KEY_READ|KEY_WRITE,NULL,&hd,&dwDisposition); if (ret != ERROR_SUCCESS) { MessageBox(NULL,"创建子键失败!","错误",MB_OK); return 0; } ret = ::RegSetValueEx(hNewSID,"EulaAccepted",NULL,REG_DWORD,(LPBYTE)(vari),4); if (ret != ERROR_SUCCESS) { MessageBox(NULL,"设置失败!","错误",MB_OK); return 0; } RegCloseKey(hKey); RegCloseKey(hSysinternals); RegCloseKey(hNewSID);

错误信息还有待改进。 分享精神可嘉。

[yangw150]

没人会吗？顶一下