菜鸟注册表读取问题,求帮忙!!!

Question

比如我想读取注册表
[HKEY_LOCAL_MACHINE\SOFTWARE\rising\Rav]
"installpath"
的内容后生成到一个文本文档中.假设"installpath"的内容="D:\\Program Files\\Rising\\Rav"请问具体写法..谢谢!!!

Answer 1

LONG lvalue;
RegQueryValue(HKEY_LOCAL_MACHINE,"SOFTWARE\\rising\\Rav",NULL,&lvalue);
char *pBuf = new char[lvalue];
RegQueryValue(HKEY_LOCAL_MACHINE,"SOFTWARE\\rising\\Rav",pBuf,&lvalue);
         FILE *pFile = fopen("TEXT.txt", "w");
fwrite(pBuf, 1, lvalue, pFile);
fclose(pFile);

Answer 2

LONG lvalue;
RegQueryValue(HKEY_LOCAL_MACHINE,"SOFTWARE\\rising\\Rav",NULL,&lvalue);
         if(lvalue != ERROR_SUCCESS)
         
         MessageBox("请确认是否安装该软件","提示",MB_OK);     
              
char *pBuf = new char[lvalue];
RegQueryValue(HKEY_LOCAL_MACHINE,"SOFTWARE\\rising\\Rav",pBuf,&lvalue);
         FILE *pFile = fopen("TEXT.txt", "w");
fwrite(pBuf, 1, lvalue, pFile);
fclose(pFile);MessageBox("请确认是否安装该软件","提示",MB_OK);
请问这句是否合适加在那个地方.谢谢...

Answer 3

"installpath"的内容="D:\\Program Files\\Rising\\Rav"

Answer 4

謝謝,問題已解決!!!
CString tmpstring;
HKEY hKEY;
LPCTSTR data_Set=_T("SOFTWARE\\rising\\Rav");
long ret0=(::RegOpenKeyEx(HKEY_LOCAL_MACHINE,data_Set,0,KEY_READ,&hKEY));
if(ret0!=ERROR_SUCCESS)
{
TRACE("请确认是否已经安装了瑞星杀毒软件!");
}
BYTE owner_Get[256];
DWORD type_1=REG_SZ;
DWORD cbData_1=256;
long ret1=::RegQueryValueEx(hKEY,_T("installpath"),NULL,&type_1,(LPBYTE)owner_Get,&cbData_1);
if(ret1!=ERROR_SUCCESS)
{
TRACE("请确认是否已经安装了瑞星杀毒软件!");
}
tmpstring=owner_Get;
CFile file("1.txt", CFile::modeCreate | CFile::modeWrite);
file.Write(tmpstring, tmpstring.GetLength());
file.Close();