ATL / WTL / STL

BufferSize = TOTALBYTES;
		PPERF_DATA_BLOCK PerfData = (PPERF_DATA_BLOCK) malloc( BufferSize );
		Size = BufferSize;

		dwRet = RegQueryValueEx(Regentry, _T("DownloadPath"), NULL, &Type, reinterpret_cast<LPBYTE>(DownloadPath), &Size);
		while( dwRet == ERROR_MORE_DATA )
		{
        // Get a buffer that is big enough.

        BufferSize += BYTEINCREMENT;
        PerfData = (PPERF_DATA_BLOCK) realloc( PerfData, BufferSize );
        Size = BufferSize;
		dwRet = RegQueryValueEx(Regentry, _T("DownloadPath"), NULL, &Type, reinterpret_cast<LPBYTE>(DownloadPath), &Size);
		}
		if( dwRet == ERROR_SUCCESS )
		{
			Path = DownloadPath;
		}
		else if ( dwRet == ERROR_FILE_NOT_FOUND )
		{
			if (RegSetValueEx(Regentry,      // subkey handle 
				   _T("DownloadPath"),  // value name 
				   0,                 // must be zero 
				   REG_SZ,         // value type 
				  (LPBYTE) &dwData,          // pointer to value data 
				  (DWORD) (lstrlen(Path.c_str())+1)*sizeof(TCHAR))) // data size
		   {
			  printf("Could not set the DownloadPath."); 
			  RegCloseKey(Regentry); 
			  return 0;
		   }
		}
		else
		{
		printf("Could not set the DownloadPath."); 
			  RegCloseKey(Regentry); 
			  return 0;
		}

#include <atlapp.h>
#include <atlframe.h>
#include <atlctrls.h>
#include <atldlgs.h>
#include <atlctrlw.h>
#include <atlwin.h>
#include <iostream>
#include <atlmisc.h>
#include <malloc.h>
#include <stdio.h>
#include <windows.h>
#include <stdlib.h>
#include <string.h>

#include <Windows.h>
PPERF_DATA_BLOCK p = new PERF_DATA_BLOCK;

savitri wrote:

it means..wt i did tell me.