为什么重启机器后,我写的注册表信息就丢失了?

[newhero]

CRegistry reg;
BOOL bReturn;
DWORD dw=10,dw2;
CString s;
int i=1,j;
bReturn=reg.Open ("Software\0");
bReturn= reg.CreateKey ("vckbase\0");
bReturn=reg.Open("vckbase\0");
bReturn= reg.Write ("name","hahahaha");
// bReturn=reg.Write("name","erio");
bReturn= reg.Write ("age",i);
bReturn= reg.Write ("sarary",dw);
bReturn=reg.Read ("name",&s);
reg.Close();
AfxMessageBox(s);

[newhero]

WRITE函数如下
BOOL CRegistry::Write(LPCTSTR lpValueName, LPCTSTR lpValue)
{
ASSERT(m_hKey);
ASSERT(lpValueName);
ASSERT(lpValue);

long lReturn=RegSetValueEx(m_hKey,lpValueName,0L,REG_SZ,(const BYTE *) lpValue,strlen(lpValue)+1);

if(lReturn==ERROR_SUCCESS)
return TRUE;

return FALSE;

}

[bcpl]

如果RegCreateKeyEx用了REG_OPTION_NON_VOLATILE参数则有此现象

[newhero]

请问bcpl(戒烟直到五颗星) 应该用什么参数呢?我在MSDN没有查到
感谢!!

[bcpl]

说错了，REG_OPTION_VOLATILE才会重启即丢失，REG_OPTION_NON_VOLATILE为永久保存。

[newhero]

非常感谢,已经成功了,打算给你100分
不过再问一个问题,我在MSDN上都没有查到用什么参数,你是怎么知道的?

[曾经的猎狐]

dwOptions
[in] 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/2000/XP: All keys created by the function are volatile. The information is stored in memory and is not preserved when the corresponding registry hive is unloaded. For HKEY_LOCAL_MACHINE, this occurs when the system is shut down. For registry keys loaded by the RegLoadKey function, this occurs when the corresponding RegUnloadKey is performed. The RegSaveKey function does not save volatile keys. This flag is ignored for keys that already exist.
Windows 95/98/Me: This value is ignored. If REG_OPTION_VOLATILE is specified, the RegCreateKeyEx function creates nonvolatile keys and returns ERROR_SUCCESS.

REG_OPTION_BACKUP_RESTORE Windows NT/2000/XP: 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.


MSDN上的原封不动的给你拿来了，是你自己没有查清楚

[曾经的猎狐]

dwOptions
[in] 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/2000/XP: All keys created by the function are volatile. The information is stored in memory and is not preserved when the corresponding registry hive is unloaded. For HKEY_LOCAL_MACHINE, this occurs when the system is shut down. For registry keys loaded by the RegLoadKey function, this occurs when the corresponding RegUnloadKey is performed. The RegSaveKey function does not save volatile keys. This flag is ignored for keys that already exist.
Windows 95/98/Me: This value is ignored. If REG_OPTION_VOLATILE is specified, the RegCreateKeyEx function creates nonvolatile keys and returns ERROR_SUCCESS.

REG_OPTION_BACKUP_RESTORE Windows NT/2000/XP: 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.


MSDN上的原封不动的给你拿来了，是你自己没有查清楚

[newhero]

可能是我们看的MSDN的版本不同,我的MSDN写到
dwOptions
[in] Ignored; set to 0 to ensure compatibility with future versions of Windows CE.
就这么一点.

[newhero]

我看的2001年4月的MSDN