MFC opens Web page with default browser

MFC/////Open Web page with default browser//if default browser is not found, the default is open with IE on void OpenURL (const CString & OpenURL) {if (OpenURL = = "") Retu
    Rn   Hkey Hkroot, Hsubkey;
    Registry root keyword and sub-keyword CString valuename;
    unsigned char Datavalue[max_path];
    unsigned long cbvaluename = MAX_PATH;    
unsigned long cbdataname = MAX_PATH;
    <pre name= "code" class= "CPP" ><pre name= "code" class= "CPP" > CString shellchar;//define command line DWORD dwtype; Open the Registry root keyword if (regopenkey (hkey_classes_root,null,&hkroot) = = ERROR_SUCCESS) {//Open the Child keyword if (Re
        Gopenkeyex (hkroot,l "Htmlfile\\shell\\open\\command", 0, key_all_access, &hsubkey) = = ERROR_SUCCESS)            {
. RegEnumValue (Hsubkey, 0, (LPWSTR) Valuename.getbuffer (MAX_PATH), &cbvaluename, NULL, &AMP;DW
             Type, DataValue, &cbdatavalue);
             Valuename.releasebuffer ();
             Call parameter Assignment Shellchar = (char *) DataValue;
 if (Shellchar = = "" ")            {ShellExecute (NULL, L "open", (LPWSTR) Openurl.getbuffer (MAX_PATH), NULL, NULL, SW_SHOWNORMAL);
             Openurl.releasebuffer ();
                 else {Shellchar = Shellchar + OpenURL;
                 WinExec ((LPCSTR) Shellchar.getbuffer (MAX_PATH), sw_show);
             Shellchar.releasebuffer ();
             } else {RegCloseKey (hsubkey);             RegCloseKey (Hroot); <pre name= "code" class= "CPP" ><pre name= "code" class= "CPP" > ShellExecute (NULL, L "open", (LPWSTR) Open
Url.getbuffer (MAX_PATH), NULL, NULL, SW_SHOWNORMAL); <pre name= "code" class= "CPP" ><pre name= "code" class= "CPP" ><pre name= "code" class= "CPP" > Open Url.releasebuffer ();

}
}

}