C / C++ / MFC

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?

Help me to understand what I'm saying, and I'll explain it better to you

HDC DeskDC = GetDC(NULL);
HDC hdcStatic = GetDC(hWndStatic);
HBITMAP hb = CreateCompatibleBitmap(hdcStatic,200,200);
 //Getting NULL(0x000000) in hOldBM. When I check The error Code it Show 0x00000005. Means "ACCESS DENIED"
HGDIOBJ hOldBM = SelectObject(hdcStatic,hb);   
SelectObject(hdcStatic, hOldBM);

SetWindowLong(hWndStatic,GWL_STYLE,(GetWindowLong(hWndStatic,GWL_STYLE) & ~SS_TYPEMASK) | SS_BITMAP) ;
BitBlt(hdcStatic,0,0,200,200,DeskDC,0,0,SRCCOPY);
SelectObject(hdcStatic, hOldBM);
 
//Gettting noting in the Picture Control         
SendMessage(hWndStatic, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hOldBM); 

//Blank Image (Black Colored)
SendMessage(hWndStatic, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hb);