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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                系統注冊表中存有很多重要的信息,我們有必要掌握比較簡單地寫入和讀取注冊的表的方法。下面結合實例來說明(**完整實例可在我的CSDN資源中下載:[http://download.csdn.net/detail/margin1988/3677190](http://download.csdn.net/detail/margin1988/3677190)**): 1.寫注冊表: ~~~ HKEY hSubKey; DWORD lpdw; ~~~ (1)創建“項”(鍵): ~~~ RegCreateKeyEx(HKEY_LOCAL_MACHINE,"Software\\Reg\\Admin",0,NULL,REG_OPTION_NON_VOLATILE,KEY_WRITE,NULL,&hSubKey,&lpdw); //REG_OPTION_NON_VOLATILE:保存,重啟還在;REG_OPTION_VOLATILE:不保存,重啟不在。 ~~~ (2)設置“值”(鍵值): ~~~ RegSetValueEx(hSubKey,"Manager",0,REG_SZ,(LPBYTE)"Margin",strlen("Margin")); ~~~ (3)釋放注冊“項”(鍵)的句柄: ~~~ RegCloseKey(hSubKey); ~~~ 2.讀取注冊表: (1)打開注冊表中的該“項”(鍵): ~~~ HKEY hKEY;//鍵 long ret = ::RegOpenKeyEx(HKEY_LOCAL_MACHINE,"Software\\Reg\\Admin",0, KEY_READ,&hKEY); if(ret!=ERROR_SUCCESS) { MessageBox("錯誤: 查詢無法打開有關的hKEY!"); return; } ~~~ (2)讀取指定“值”的數據: ~~~ unsigned char tmp[256]="\0"; //讀出的數據 DWORD type=REG_SZ; DWORD size=256;//必須大于你的鍵值字符長度 ret=::RegQueryValueEx(hKEY,"Manager",NULL,&type,tmp,&size); if(ret!=ERROR_SUCCESS) { MessageBox("錯誤:無法查詢有關注冊表信息!"); return; } // 數據類型轉化:unsigned char *?CString〔這也是一個小知識點〕 CString tmpstring; //讀出的數據 tmpstring.Format("%s",tmp); ~~~
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