Windows7 64位系统中,读取注册表，文件路劲重定位解决方案

￡神魔★判官ぃ 2024-02-17 18:40 42阅读 0赞

**在Windows7 64位系统中,读取注册表，文件路劲会进行重定位。以下是解决办法：**

**//第一步：定义宏**  
\#define KEY\_WOW64\_64KEY (0x0100) //支持读写64位注册表  
LPCTSTR Test::GetKeyValue()  
\{

> LPCTSTR sKeyVlaue = "";  
> HKEY hKey;  
> HKEY hKeyRoot = HKEY\_LOCAL\_MACHINE;  
> long nOpenMode = -1;  
> REGSAM samDesired;  
> **//第二步：判断当前系统是否为64位**  
> if(IsWow64) //64位系统  
> \{  
>

> > samDesired = KEY\_READ|KEY\_WOW64\_64KEY;

> \}  
> else  
> \{  
>

> > samDesired = KEY\_READ;

> \}  
> **//第三步：打开路劲是否存在（先在SOFTWARE目录下找，未找到，再次在SOFTWARE\\\\WOW6432NODE目录下查找）**  
> nOpenMode = ::RegOpenKeyEx(hKeyRoot,"SOFTWARE\\\\安装日志\\\\",0,samDesired,&hKey);  
> 
> 
> if(nOpenMode != ERROR\_SUCCESS) //无法打开
> 
> \{

> > **//注：WOW6432NODE项是用于储存32位软件的注册信息用的，如果是64位Windows 7系统，在里面安装的32位软件的注册表信息**
> 
> > nOpenMode = ::RegOpenKeyEx(hKeyRoot,"SOFTWARE\\\\WOW6432NODE\\\\安装日志\\\\",0,samDesired,&hKey);
> 
> > if(nOpenMode != ERROR\_SUCCESS) //无法打开
> 
> > \{

> > > return "";

> > \}

> \}
> 
>   
> 
> 
> LPBYTE lpKeyValue = new BYTE\[80\];  
> DWORD dwKeyType = REG\_SZ;  
> DWORD dwDataLen = 80;  
> CString sKeyName = "test"; //指定键名  
> **//第四步：获取键值**  
> long nReg = ::RegQueryValueEx(hKey,sKeyName,NULL,&dwKeyType,lpKeyValue,&dwDataLen);  
> delete lpKeyValue;  
> sKeyVlaue = (LPCTSTR)lpKeyValue;  
> return sKeyVlaue;

/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/  
/\*判断是否是64位系统  \*/  
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/  
typedef BOOL (WINAPI \*LPEN\_ISWOW64PROCESS)(HANDLE,PBOOL);  
BOOL CSqlConTestDlg::IsWow64()  
\{

> BOOL bIsWow64 = false;
> 
> LPEN\_ISWOW64PROCESS fnIsWow64Process;
> 
> fnIsWow64Process = (LPEN\_ISWOW64PROCESS)GetProcAddress(GetModuleHandle(TEXT("kernel32")),"IsWow64Process");
> 
> if(NULL != fnIsWow64Process)
> 
> \{

>  if(!fnIsWow64Process(GetCurrentProcess(),&bIsWow64))\{\};

> \}
> 
> return bIsWow64;