Source code of Windows XP (NT5)
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/*++
Microsoft Confidential
Copyright (c) 1992-1997 Microsoft Corporation
All rights reserved
Module Name:
virtual.h
Abstract:
Public declarations for the Change Virtual Memory dialog of the System
Control Panel Applet
Notes:
The virtual memory settings and the crash dump (core dump) settings
are tightly-coupled. Therefore, virtual.c and virtual.h have some
heavy dependencies on crashdmp.c and startup.h (and vice versa).
Author:
Byron Dazey 06-Jun-1992
Revision History:
15-Oct-1997 scotthal
Split public declarations into separate header
--*/
#ifndef _SYSDM_VIRTUAL_H_
#define _SYSDM_VIRTUAL_H_
//
// Some debugging macros shared by the virtual mem and crash dump stuff
//
#ifdef VM_DBG
# pragma message(__FILE__"(19): warning !!!! : compiled for DEBUG ONLY!" )
# define DPRINTF(p) DBGPRINTF(p)
# define DOUT(S) DBGOUT(S)
#else
# define DPRINTF(p)
# define DOUT(S)
#endif
//
// Constants
//
#define MAX_DRIVES 26 // Max number of drives.
//
// Type Definitions
//
typedef struct
{
BOOL fCanHavePagefile; // TRUE if the drive can have a pagefile.
BOOL fCreateFile; // TRUE if user hits [SET] and no pagefile
DWORD nMinFileSize; // Minimum size of pagefile in MB.
DWORD nMaxFileSize; // Max size of pagefile in MB.
DWORD nMinFileSizePrev; // Previous minimum size of pagefile in MB.
DWORD nMaxFileSizePrev; // Previous max size of pagefile in MB.
LPTSTR pszPageFile; // Path to page file if it exists on that drv
BOOL fRamBasedPagefile; // TRUE if the pagefile size should always match RAM
} PAGING_FILE; // Swap file structure
//
// Global Variables
//
extern HKEY ghkeyMemMgt;
extern PAGING_FILE apf[MAX_DRIVES];
extern PAGING_FILE apfOriginal[MAX_DRIVES];
//
// Public function prototypes
//
INT_PTR
APIENTRY
VirtualMemDlg(
IN HWND hDlg,
IN UINT message,
IN WPARAM wParam,
IN LPARAM lParam
);
BOOL
VirtualInitStructures(
void
);
void
VirtualFreeStructures(
void
);
INT
VirtualMemComputeAllocated(
IN HWND hWnd,
OUT BOOL *pfTempPf
);
VCREG_RET
VirtualOpenKey(
void
);
void
VirtualCloseKey(
void
);
BOOL
VirtualGetPageFiles(
OUT PAGING_FILE *apf
);
void
VirtualFreePageFiles(
IN PAGING_FILE *apf
);
BOOL
VirtualMemUpdateRegistry(
VOID
);
int
VirtualMemPromptForReboot(
IN HWND hDlg
);
DWORD
GetFreeSpaceMB(
IN INT iDrive
);
VOID
SetDlgItemMB(
IN HWND hDlg,
IN INT idControl,
IN DWORD dwMBValue
);
#endif // _SYSDM_VIRTUAL_H_