mirror of
https://github.com/reactos/reactos.git
synced 2024-11-09 08:08:38 +00:00
639 lines
19 KiB
C
639 lines
19 KiB
C
/*
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* PROJECT: ReactOS system properties, control panel applet
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: dll/cpl/sysdm/virtual.c
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* PURPOSE: Virtual memory control dialog
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* COPYRIGHT: Copyright 2006 Ged Murphy <gedmurphy@gmail.com>
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*
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*/
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#include "precomp.h"
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static BOOL OnSelChange(HWND hwndDlg, PVIRTMEM pVirtMem);
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static LPCTSTR lpKey = _T("SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Memory Management");
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static BOOL
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ReadPageFileSettings(PVIRTMEM pVirtMem)
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{
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HKEY hkey = NULL;
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DWORD dwType;
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DWORD dwDataSize;
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BOOL bRet = FALSE;
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if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
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lpKey,
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0,
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NULL,
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REG_OPTION_NON_VOLATILE,
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KEY_QUERY_VALUE,
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NULL,
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&hkey,
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NULL) == ERROR_SUCCESS)
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{
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if (RegQueryValueEx(hkey,
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_T("PagingFiles"),
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NULL,
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&dwType,
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NULL,
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&dwDataSize) == ERROR_SUCCESS)
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{
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pVirtMem->szPagingFiles = (LPTSTR)HeapAlloc(GetProcessHeap(),
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0,
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dwDataSize);
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if (pVirtMem->szPagingFiles != NULL)
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{
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ZeroMemory(pVirtMem->szPagingFiles,
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dwDataSize);
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if (RegQueryValueEx(hkey,
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_T("PagingFiles"),
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NULL,
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&dwType,
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(PBYTE)pVirtMem->szPagingFiles,
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&dwDataSize) == ERROR_SUCCESS)
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{
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bRet = TRUE;
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}
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}
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}
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}
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if (!bRet)
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ShowLastWin32Error(pVirtMem->hSelf);
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if (hkey != NULL)
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RegCloseKey(hkey);
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return bRet;
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}
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static VOID
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GetPageFileSizes(LPTSTR lpPageFiles,
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LPINT lpInitialSize,
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LPINT lpMaximumSize)
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{
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INT i = 0;
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*lpInitialSize = -1;
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*lpMaximumSize = -1;
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while (*lpPageFiles != _T('\0'))
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{
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if (*lpPageFiles == _T(' '))
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{
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lpPageFiles++;
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switch (i)
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{
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case 0:
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*lpInitialSize = (INT)_ttoi(lpPageFiles);
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i = 1;
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break;
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case 1:
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*lpMaximumSize = (INT)_ttoi(lpPageFiles);
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return;
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}
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}
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lpPageFiles++;
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}
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}
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static VOID
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ParseMemSettings(PVIRTMEM pVirtMem)
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{
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TCHAR szDrives[1024]; // All drives
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LPTSTR DrivePtr = szDrives;
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TCHAR szDrive[3]; // Single drive
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TCHAR szVolume[MAX_PATH];
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TCHAR *szDisplayString;
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INT InitialSize = 0;
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INT MaximumSize = 0;
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INT DriveLen;
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INT PgCnt = 0;
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DriveLen = GetLogicalDriveStrings(1023,
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szDrives);
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szDisplayString = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (MAX_PATH * 2 + 69) * sizeof(TCHAR));
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if (szDisplayString == NULL)
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return;
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while (DriveLen != 0)
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{
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INT Len;
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Len = lstrlen(DrivePtr) + 1;
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DriveLen -= Len;
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DrivePtr = _tcsupr(DrivePtr);
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/* Copy the 'X:' portion */
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lstrcpyn(szDrive, DrivePtr, sizeof(szDrive) / sizeof(TCHAR));
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if (GetDriveType(DrivePtr) == DRIVE_FIXED)
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{
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/* Does drive match the one in the registry ? */
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if (!_tcsncmp(pVirtMem->szPagingFiles, szDrive, 2))
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{
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/* FIXME: We only check the first available pagefile in the reg */
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GetPageFileSizes(pVirtMem->szPagingFiles,
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&InitialSize,
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&MaximumSize);
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pVirtMem->Pagefile[PgCnt].InitialSize = InitialSize;
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pVirtMem->Pagefile[PgCnt].MaximumSize = MaximumSize;
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pVirtMem->Pagefile[PgCnt].bUsed = TRUE;
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lstrcpy(pVirtMem->Pagefile[PgCnt].szDrive, szDrive);
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}
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else
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{
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pVirtMem->Pagefile[PgCnt].InitialSize = 0;
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pVirtMem->Pagefile[PgCnt].MaximumSize = 0;
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pVirtMem->Pagefile[PgCnt].bUsed = FALSE;
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lstrcpy(pVirtMem->Pagefile[PgCnt].szDrive, szDrive);
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}
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_tcscpy(szDisplayString, szDrive);
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_tcscat(szDisplayString, _T("\t"));
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/* Set a volume label if there is one */
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if (GetVolumeInformation(DrivePtr,
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szVolume,
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255,
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NULL,
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NULL,
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NULL,
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NULL,
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0))
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{
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if (szVolume[0] != _T('\0'))
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{
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TCHAR szVol[MAX_PATH + 2];
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_stprintf(szVol, _T("[%s]"), szVolume);
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_tcscat(szDisplayString, szVol);
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}
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}
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if ((InitialSize != 0) || (MaximumSize != 0))
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{
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TCHAR szSize[64];
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_stprintf(szSize, _T("%i - %i"), InitialSize, MaximumSize);
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_tcscat(szDisplayString, _T("\t"));
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_tcscat(szDisplayString, szSize);
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}
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SendMessage(pVirtMem->hListBox, LB_ADDSTRING, (WPARAM)0, (LPARAM)szDisplayString);
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PgCnt++;
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}
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DrivePtr += Len;
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}
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SendMessage(pVirtMem->hListBox, LB_SETCURSEL, (WPARAM)0, (LPARAM)0);
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HeapFree(GetProcessHeap(), 0, szDisplayString);
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pVirtMem->Count = PgCnt;
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OnSelChange(pVirtMem->hSelf, pVirtMem);
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}
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static VOID
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WritePageFileSettings(PVIRTMEM pVirtMem)
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{
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HKEY hk = NULL;
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TCHAR szPagingFiles[2048];
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TCHAR szText[256];
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INT i, nPos = 0;
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BOOL bErr = TRUE;
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for (i = 0; i < pVirtMem->Count; ++i)
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{
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if (pVirtMem->Pagefile[i].bUsed)
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{
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_stprintf(szText, _T("%s\\pagefile.sys %i %i"),
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pVirtMem->Pagefile[i].szDrive,
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pVirtMem->Pagefile[i].InitialSize,
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pVirtMem->Pagefile[i].MaximumSize);
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/* Add it to our overall registry string */
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lstrcpy(szPagingFiles + nPos, szText);
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/* Record the position where the next string will start */
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nPos += (INT)lstrlen(szText) + 1;
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/* Add another NULL for REG_MULTI_SZ */
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szPagingFiles[nPos] = _T('\0');
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nPos++;
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}
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}
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if (RegCreateKeyEx(HKEY_LOCAL_MACHINE,
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lpKey,
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0,
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NULL,
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REG_OPTION_NON_VOLATILE,
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KEY_WRITE,
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NULL,
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&hk,
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NULL) == ERROR_SUCCESS)
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{
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if (RegSetValueEx(hk,
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_T("PagingFiles"),
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0,
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REG_MULTI_SZ,
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(LPBYTE) szPagingFiles,
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(DWORD) nPos * sizeof(TCHAR)) == ERROR_SUCCESS)
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{
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bErr = FALSE;
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}
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RegCloseKey(hk);
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}
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if (bErr)
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ShowLastWin32Error(pVirtMem->hSelf);
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}
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static VOID
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SetListBoxColumns(HWND hwndListBox)
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{
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const INT tabs[2] = {30, 120};
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SendMessage(hwndListBox, LB_SETTABSTOPS, (WPARAM)2, (LPARAM)&tabs[0]);
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}
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static VOID
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OnNoPagingFile(PVIRTMEM pVirtMem)
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{
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/* Disable the page file custom size boxes */
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_INITIALSIZE), FALSE);
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_MAXSIZE), FALSE);
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}
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static VOID
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OnSysManSize(PVIRTMEM pVirtMem)
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{
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/* Disable the page file custom size boxes */
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_INITIALSIZE), FALSE);
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_MAXSIZE), FALSE);
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}
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static VOID
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OnCustom(PVIRTMEM pVirtMem)
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{
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/* Enable the page file custom size boxes */
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_INITIALSIZE), TRUE);
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_MAXSIZE), TRUE);
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}
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static VOID
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OnSet(PVIRTMEM pVirtMem)
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{
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INT Index;
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UINT InitialSize;
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UINT MaximumSize;
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BOOL bTranslated;
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TCHAR szTitle[64];
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TCHAR szMessage[256];
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pVirtMem->bSave = TRUE;
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Index = (INT)SendDlgItemMessage(pVirtMem->hSelf,
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IDC_PAGEFILELIST,
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LB_GETCURSEL,
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0,
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0);
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if (Index >= 0 && Index < pVirtMem->Count)
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{
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/* Check if custom settings are checked */
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if (IsDlgButtonChecked(pVirtMem->hSelf,
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IDC_CUSTOM) == BST_CHECKED)
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{
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InitialSize = GetDlgItemInt(pVirtMem->hSelf,
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IDC_INITIALSIZE,
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&bTranslated,
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FALSE);
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if (!bTranslated)
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{
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if (LoadString(hApplet,
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IDS_MESSAGEBOXTITLE,
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szTitle,
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sizeof(szTitle) / sizeof(szTitle[0])) == 0)
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_tcscpy(szTitle, _T("System control panel applet"));
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if (LoadString(hApplet,
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IDS_WARNINITIALSIZE,
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szMessage,
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sizeof(szMessage) / sizeof(szMessage[0])) == 0)
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_tcscpy(szMessage, _T("Enter a numeric value for the initial size of the paging file."));
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MessageBox(NULL,
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szMessage,
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szTitle,
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MB_ICONWARNING | MB_OK);
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return;
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}
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MaximumSize = GetDlgItemInt(pVirtMem->hSelf,
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IDC_MAXSIZE,
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&bTranslated,
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FALSE);
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if (!bTranslated)
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{
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if (LoadString(hApplet,
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IDS_MESSAGEBOXTITLE,
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szTitle,
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sizeof(szTitle) / sizeof(szTitle[0])) == 0)
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_tcscpy(szTitle, _T("System control panel applet"));
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if (LoadString(hApplet,
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IDS_WARNMAXIMUMSIZE,
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szMessage,
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sizeof(szMessage) / sizeof(szMessage[0])) == 0)
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_tcscpy(szMessage, _T("Enter a numeric value for the maximum size of the paging file."));
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MessageBox(NULL,
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szMessage,
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szTitle,
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MB_ICONWARNING | MB_OK);
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return;
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}
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/* Check the valid range of the inial size */
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if (InitialSize < 2 ||
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InitialSize > pVirtMem->Pagefile[Index].FreeSize)
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{
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if (LoadString(hApplet,
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IDS_MESSAGEBOXTITLE,
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szTitle,
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sizeof(szTitle) / sizeof(szTitle[0])) == 0)
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_tcscpy(szTitle, _T("System control panel applet"));
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LoadString(hApplet,
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IDS_WARNINITIALRANGE,
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szMessage,
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sizeof(szMessage) / sizeof(szMessage[0]));
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MessageBox(NULL,
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szMessage,
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szTitle,
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MB_ICONWARNING | MB_OK);
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return;
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}
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/* Check the valid range of the maximum size */
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if (MaximumSize < InitialSize ||
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MaximumSize > pVirtMem->Pagefile[Index].FreeSize)
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{
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if (LoadString(hApplet,
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IDS_MESSAGEBOXTITLE,
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szTitle,
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sizeof(szTitle) / sizeof(szTitle[0])) == 0)
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_tcscpy(szTitle, _T("System control panel applet"));
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LoadString(hApplet,
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IDS_WARNMAXIMUMRANGE,
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szMessage,
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sizeof(szMessage) / sizeof(szMessage[0]));
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MessageBox(NULL,
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szMessage,
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szTitle,
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MB_ICONWARNING | MB_OK);
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return;
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}
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pVirtMem->Pagefile[Index].InitialSize = InitialSize;
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pVirtMem->Pagefile[Index].MaximumSize = MaximumSize;
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pVirtMem->Pagefile[Index].bUsed = TRUE;
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}
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else
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{
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/* Set sizes to 0 */
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pVirtMem->Pagefile[Index].InitialSize = 0;
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pVirtMem->Pagefile[Index].MaximumSize = 0;
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// Check to see if this drive is used for a paging file
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if (IsDlgButtonChecked(pVirtMem->hSelf,
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IDC_NOPAGEFILE) == BST_UNCHECKED)
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{
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pVirtMem->Pagefile[Index].bUsed = TRUE;
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}
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else
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{
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pVirtMem->Pagefile[Index].bUsed = FALSE;
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}
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}
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}
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}
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static BOOL
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OnSelChange(HWND hwndDlg, PVIRTMEM pVirtMem)
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{
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TCHAR szBuffer[64];
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MEMORYSTATUSEX MemoryStatus;
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ULARGE_INTEGER FreeDiskSpace;
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UINT i, FreeMemMb, PageFileSizeMb;
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INT Index;
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Index = (INT)SendDlgItemMessage(hwndDlg,
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IDC_PAGEFILELIST,
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LB_GETCURSEL,
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0,
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0);
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if (Index >= 0 && Index < pVirtMem->Count)
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{
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/* Set drive letter */
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SetDlgItemText(hwndDlg, IDC_DRIVE,
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pVirtMem->Pagefile[Index].szDrive);
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/* Set available disk space */
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if (GetDiskFreeSpaceEx(pVirtMem->Pagefile[Index].szDrive,
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NULL, NULL, &FreeDiskSpace))
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{
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pVirtMem->Pagefile[Index].FreeSize = (UINT)(FreeDiskSpace.QuadPart / (1024 * 1024));
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_stprintf(szBuffer, _T("%u MB"), pVirtMem->Pagefile[Index].FreeSize);
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SetDlgItemText(hwndDlg, IDC_SPACEAVAIL, szBuffer);
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}
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if (pVirtMem->Pagefile[Index].InitialSize != 0 &&
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pVirtMem->Pagefile[Index].MaximumSize != 0)
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{
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/* Enable and fill the custom values */
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_MAXSIZE), TRUE);
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_INITIALSIZE), TRUE);
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SetDlgItemInt(pVirtMem->hSelf,
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IDC_INITIALSIZE,
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pVirtMem->Pagefile[Index].InitialSize,
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FALSE);
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SetDlgItemInt(pVirtMem->hSelf,
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IDC_MAXSIZE,
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pVirtMem->Pagefile[Index].MaximumSize,
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FALSE);
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CheckDlgButton(pVirtMem->hSelf,
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IDC_CUSTOM,
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BST_CHECKED);
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}
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else
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{
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/* It's not a custom value */
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_MAXSIZE), FALSE);
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EnableWindow(GetDlgItem(pVirtMem->hSelf, IDC_INITIALSIZE), FALSE);
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/* Is it system managed */
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if (pVirtMem->Pagefile[Index].bUsed)
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{
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CheckDlgButton(pVirtMem->hSelf,
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IDC_SYSMANSIZE,
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BST_CHECKED);
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}
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else
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{
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CheckDlgButton(pVirtMem->hSelf,
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IDC_NOPAGEFILE,
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BST_CHECKED);
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}
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}
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/* Set minimum pagefile size */
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SetDlgItemText(hwndDlg, IDC_MINIMUM, _T("2 MB"));
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/* Set recommended pagefile size */
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MemoryStatus.dwLength = sizeof(MEMORYSTATUSEX);
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if (GlobalMemoryStatusEx(&MemoryStatus))
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{
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FreeMemMb = (UINT)(MemoryStatus.ullTotalPhys / (1024 * 1024));
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_stprintf(szBuffer, _T("%u MB"), FreeMemMb + (FreeMemMb / 2));
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SetDlgItemText(hwndDlg, IDC_RECOMMENDED, szBuffer);
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}
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/* Set current pagefile size */
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PageFileSizeMb = 0;
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for (i = 0; i < 26; i++)
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{
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PageFileSizeMb += pVirtMem->Pagefile[i].InitialSize;
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}
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_stprintf(szBuffer, _T("%u MB"), PageFileSizeMb);
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SetDlgItemText(hwndDlg, IDC_CURRENT, szBuffer);
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}
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return TRUE;
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}
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static VOID
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OnOk(PVIRTMEM pVirtMem)
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{
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if (pVirtMem->bSave == TRUE)
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{
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WritePageFileSettings(pVirtMem);
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}
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}
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static VOID
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OnInitDialog(HWND hwnd, PVIRTMEM pVirtMem)
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{
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pVirtMem->hSelf = hwnd;
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pVirtMem->hListBox = GetDlgItem(hwnd, IDC_PAGEFILELIST);
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pVirtMem->bSave = FALSE;
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|
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SetListBoxColumns(pVirtMem->hListBox);
|
|
|
|
/* Load the pagefile systems from the reg */
|
|
if (ReadPageFileSettings(pVirtMem))
|
|
{
|
|
/* Parse our settings and set up dialog */
|
|
ParseMemSettings(pVirtMem);
|
|
}
|
|
}
|
|
|
|
|
|
INT_PTR CALLBACK
|
|
VirtMemDlgProc(HWND hwndDlg,
|
|
UINT uMsg,
|
|
WPARAM wParam,
|
|
LPARAM lParam)
|
|
{
|
|
PVIRTMEM pVirtMem;
|
|
|
|
UNREFERENCED_PARAMETER(lParam);
|
|
|
|
pVirtMem = (PVIRTMEM)GetWindowLongPtr(hwndDlg, DWLP_USER);
|
|
|
|
switch (uMsg)
|
|
{
|
|
case WM_INITDIALOG:
|
|
pVirtMem = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(VIRTMEM));
|
|
if (pVirtMem == NULL)
|
|
{
|
|
EndDialog(hwndDlg, 0);
|
|
return FALSE;
|
|
}
|
|
|
|
SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)pVirtMem);
|
|
|
|
OnInitDialog(hwndDlg, pVirtMem);
|
|
break;
|
|
|
|
case WM_DESTROY:
|
|
if (pVirtMem->szPagingFiles)
|
|
HeapFree(GetProcessHeap(), 0,
|
|
pVirtMem->szPagingFiles);
|
|
HeapFree(GetProcessHeap(), 0, pVirtMem);
|
|
break;
|
|
|
|
case WM_COMMAND:
|
|
switch (LOWORD(wParam))
|
|
{
|
|
case IDCANCEL:
|
|
EndDialog(hwndDlg, 0);
|
|
return TRUE;
|
|
|
|
case IDOK:
|
|
OnOk(pVirtMem);
|
|
EndDialog(hwndDlg, 0);
|
|
return TRUE;
|
|
|
|
case IDC_NOPAGEFILE:
|
|
OnNoPagingFile(pVirtMem);
|
|
return TRUE;
|
|
|
|
case IDC_SYSMANSIZE:
|
|
OnSysManSize(pVirtMem);
|
|
return TRUE;
|
|
|
|
case IDC_CUSTOM:
|
|
OnCustom(pVirtMem);
|
|
return TRUE;
|
|
|
|
case IDC_SET:
|
|
OnSet(pVirtMem);
|
|
return TRUE;
|
|
|
|
case IDC_PAGEFILELIST:
|
|
switch (HIWORD(wParam))
|
|
{
|
|
case LBN_SELCHANGE:
|
|
OnSelChange(hwndDlg, pVirtMem);
|
|
return TRUE;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|