C / C++ / MFC

chandu004 wrote:

are you using MFC?

<br />
    unsigned char *String;<br />
	<br />
    CString cString,result;<br />
    cString="{abcdef}";<br />
    int n=cString.GetLength();<br />
    result=cString.Mid(1,n-2);<br />
<br />
    String = (BSTR)rest; <br />

void GetFormattedGuid( const GUID& guid, CString& rString)
{
  // use appropriate formatting string
  const CString strFormat(_T("%08lX-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X"));

  // then format into destination
  rString.Format(strFormat,
    guid.Data1, guid.Data2, guid.Data3,
    guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
    guid.Data4[4], guid.Data4[5], guid.Data4[6], m_guid.Data4[7],
  );
}

<br />
bool CTcpIpPropertiesChangerApp::UUidConversion()<br />
{<br />
   char szValue[MAX_GUID_STRING_LEN];<br />
<br />
   szValue={A89377EA-D4ED-4A03-A37F-4A9DE785E1A9};//This value i get from a for loop function<br />
<br />
   unsigned char *GuidString=new unsigned char[MAX_GUID_STRING_LEN];<br />
   GuidString[MAX_GUID_STRING_LEN - 2] = _T('\0');<br />
<br />
   for(int l=0;l<MAX_GUID_STRING_LEN;l++)<br />
     GuidString[l] = szValue[l];<br />
<br />
   GUID ret = { 0 };//If GUID is replaced by UUID makes no difference during execution<br />
   if(UuidFromString(GuidString,&ret)==RPC_S_OK)<br />
   {<br />
	delete GuidString;<br />
	return true;<br />
   }<br />
   else<br />
     return false;<br />
}<br />

Priya_Sundar wrote:

Now this function is always returning false as UuidFromString is always returning RPC_S_INVALID_STRING_UUID telling that the string UUID/GUID 'GuidString' is invalid.

#include "stdafx.h"

#include <atlstr.h>
#include <iostream>
#include <RPC.h>

#pragma comment( lib, "Rpcrt4")

int _tmain(int argc, _TCHAR* argv[])
{
  const char szValue[] = "{A89377EA-D4ED-4A03-A37F-4A9DE785E1A9}";//This is some parameter

  // Here, anything after the first up to the last but one character gets assigned to the CString
  CString szGuidString( szValue+1, strlen(szValue)-2);
  GUID ret = { 0 };
  const RPC_STATUS status = UuidFromString( (unsigned char*)(LPCTSTR)szGuidString, &ret);
  if( status == RPC_S_OK)
  {
    ...
  }
  else
  {
    ...
  }

  return system("pause");
}

Priya_Sundar wrote:

However, here i am not able to store it back to 'String'.

String = new unsigned char[result.GetLength() + 1];
strcpy(String, result);

Priya_Sundar wrote:

However, here i am not able to store it back to 'String'. i am getting various compiler errors like

<br />
String++;<br />
String[6] = '\0';<br />

<br />
    ::string gidstring = String;<br />
    gidstring = gidstring.substr(1, gidstring.length() - 2);<br />

unsigned char *srcString = "{abcdef}";
unsigned char *dstString = "";


memcpy (srcString+1, dstString, (srcString.length () - 2));

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

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