यदि आप थोड़ा सा प्रोग्राम कर सकते हैं, तो https://docs.microsoft.com/en-us/windows/desktop/sysinfo/determining-the-registry-size देखें ।
कॉपी करें:
//*******************************************************************
//
// Determines the current and maximum registry size.
//
//*******************************************************************
#include <windows.h>
#include <tchar.h>
#include <stdio.h>
#include <pdh.h>
PDH_STATUS GetRegistrySize( LPTSTR szMachineName,
LPDWORD lpdwCurrentSize, LPDWORD lpdwMaximumSize );
//*******************************************************************
//
// Entry point for the program. This function demonstrates how to
// use the GetRegistrySize function implemented below.
//
// It will use the first argument, if present, as the name of the
// computer whose registry you wish to determine. If unspecified,
// it will use the local computer.
//*******************************************************************
int _tmain( int argc, TCHAR *argv[] )
{
LPTSTR szMachineName = NULL;
PDH_STATUS pdhStatus = 0;
DWORD dwCurrent = 0;
DWORD dwMaximum = 0;
// Allow a computer name to be specified on the command line.
if ( argc > 1 )
szMachineName = argv[1];
// Get the registry size.
pdhStatus=GetRegistrySize(szMachineName, &dwCurrent, &dwMaximum);
// Print the results.
if ( pdhStatus == ERROR_SUCCESS )
{
_tprintf( TEXT("Registry size: %ld bytes\n"), dwCurrent );
_tprintf( TEXT("Max registry size: %ld bytes\n"), dwMaximum );
}
else
{
// If the operation failed, print the PDH error message.
LPTSTR szMessage = NULL;
FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_HMODULE,
GetModuleHandle( TEXT("PDH.DLL") ), pdhStatus,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
szMessage, 0, NULL );
_tprintf( TEXT("GetRegistrySize failed: %s"), szMessage );
LocalFree( szMessage );
}
return 0;
}
//*******************************************************************
//
// Retrieves the current and maximum registry size. It gets this
// information from the raw counter values for the "% Registry Quota
// In Use" performance counter within the System object.
//
// PARAMETERS:
// szMachineName - Null-terminated string that specifies the
// name of the computer whose registry you wish to query.
// If this parameter is NULL, the local computer is used.
//
// lpdwCurrentSize - Receives the current registry size.
//
// lpdwMaximumSize - Receives the maximum registry size.
//
// RETURN VALUE:
// ERROR_SUCCESS if successful. Otherwise, the function
// returns a PDH error code. These error codes can be
// found in PDHMSG.H. A textual error message can be
// retrieved from PDH.DLL using the FormatMessage function.
//
//******************************************************************
PDH_STATUS GetRegistrySize( LPTSTR szMachineName,
LPDWORD lpdwCurrentSize, LPDWORD lpdwMaximumSize )
{
PDH_STATUS pdhResult = 0;
TCHAR szCounterPath[1024];
DWORD dwPathSize = 1024;
PDH_COUNTER_PATH_ELEMENTS pe;
PDH_RAW_COUNTER pdhRawValues;
HQUERY hQuery = NULL;
HCOUNTER hCounter = NULL;
DWORD dwType = 0;
// Open PDH query
pdhResult = PdhOpenQuery( NULL, 0, &hQuery );
if ( pdhResult != ERROR_SUCCESS )
return pdhResult;
__try
{
// Create counter path
pe.szMachineName = szMachineName;
pe.szObjectName = TEXT("System");
pe.szInstanceName = NULL;
pe.szParentInstance = NULL;
pe.dwInstanceIndex = 1;
pe.szCounterName = TEXT("% Registry Quota In Use");
pdhResult = PdhMakeCounterPath( &pe, szCounterPath,
&dwPathSize, 0 );
if ( pdhResult != ERROR_SUCCESS )
__leave;
// Add the counter to the query
pdhResult=PdhAddCounter(hQuery, szCounterPath, 0, &hCounter);
if ( pdhResult != ERROR_SUCCESS )
__leave;
// Run the query to collect the performance data
pdhResult = PdhCollectQueryData( hQuery );
if ( pdhResult != ERROR_SUCCESS )
__leave;
// Retrieve the raw counter data:
// The dividend (FirstValue) is the current registry size
// The divisor (SecondValue) is the maximum registry size
ZeroMemory( &pdhRawValues, sizeof(pdhRawValues) );
pdhResult = PdhGetRawCounterValue( hCounter, &dwType,
&pdhRawValues );
if ( pdhResult != ERROR_SUCCESS )
__leave;
// Store the sizes in variables.
if ( lpdwCurrentSize )
*lpdwCurrentSize = (DWORD) pdhRawValues.FirstValue;
if ( lpdwMaximumSize )
*lpdwMaximumSize = (DWORD) pdhRawValues.SecondValue;
}
__finally
{
// Close the query
PdhCloseQuery( hQuery );
}
return 0;
}