C / C++ / MFC

BOOL CNetworkToolBox::GetNetworkCardsFromIpHlpAPI(CStringArray *szCards)
{
   BYTE *pBuf=NULL;
   DWORD dwSize=0;
   DWORD dwResult=0;
   BOOL bConnected=FALSE;
   PMIB_IFTABLE pMIBTable;
   CString str;

   GetIfTable(NULL,&dwSize,FALSE);
   pBuf=new BYTE[dwSize];
   pMIBTable=reinterpret_cast <PMIB_IFTABLE>(pBuf);

   if(NO_ERROR == GetIfTable(pMIBTable,&dwSize,FALSE))
   {
      for(UINT i=0; i < pMIBTable->dwNumEntries; ++i)
      {
         if(MIB_IF_TYPE_LOOPBACK != pMIBTable->table[i].dwType)
         {
            if(MIB_IF_OPER_STATUS_CONNECTED == pMIBTable->table[i].dwOperStatus
				|| MIB_IF_OPER_STATUS_OPERATIONAL == pMIBTable->table[i].dwOperStatus)
            {
				str.Format("%d@%s",pMIBTable->table[i].dwIndex,pMIBTable->table[i].bDescr);
				szCards->Add(str);
            }
         }
      }
   }

   delete []pBuf;
   return bConnected;
}

#include "Iphlpapi.h"
#pragma comment(lib, "iphlpapi.lib")

popacio wrote:

I am not sure that this is a good archietecture because with 300 connections my application has become slow.
May be that if i create a separate thread for every connection performance improves ?

shaibee wrote:

I have a double value describing rotation angle for a text box object. I need to convert it to quaternion.

shaibee wrote:

Now I understand that I need a vector, along with the angle for the conversion

Quaternion Q;
Q.x = x * sin(Angle/2);
Q.y = y * sin(Angle/2);
Q.z = z * sin(Angle/2);
Q.w = cos(Angle/2);