/***************************************************************************** * * (C) Copyright MICROSOFT Corp., 1993-1999 * * Title: DBT.H - Equates for WM_DEVICECHANGE and BroadcastSystemMessage * * Version: 4.00 * * Date: 24-May-1993 * * Author: rjc * *---------------------------------------------------------------------------- * * Change log: * * DATE REV DESCRIPTION * ----------- --- ---------------------------------------------------------- * *****************************************************************************/ #ifndef _DBT_H #define _DBT_H #if _MSC_VER > 1000 #pragma once #endif /* * BroadcastSpecialMessage constants. */ #define WM_DEVICECHANGE 0x0219 /* XLATOFF */ #ifdef IS_32 #define DBTFAR #else #define DBTFAR far #endif /* XLATON */ #ifndef _WCHAR_T_DEFINED typedef unsigned short wchar_t; #define _WCHAR_T_DEFINED #endif #ifndef GUID_DEFINED #include #endif // !defined(GUID_DEFINED) /* * Broadcast message and receipient flags. * * Note that there is a third "flag". If the wParam has: * * bit 15 on: lparam is a pointer and bit 14 is meaningfull. * bit 15 off: lparam is just a UNLONG data type. * * bit 14 on: lparam is a pointer to an ASCIIZ string. * bit 14 off: lparam is a pointer to a binary struture starting with * a dword describing the length of the structure. */ #define BSF_QUERY 0x00000001 #define BSF_IGNORECURRENTTASK 0x00000002 /* Meaningless for VxDs */ #define BSF_FLUSHDISK 0x00000004 /* Shouldn't be used by VxDs */ #define BSF_NOHANG 0x00000008 #define BSF_POSTMESSAGE 0x00000010 #define BSF_FORCEIFHUNG 0x00000020 #define BSF_NOTIMEOUTIFNOTHUNG 0x00000040 #define BSF_MSGSRV32ISOK 0x80000000 /* Called synchronously from PM API */ #define BSF_MSGSRV32ISOK_BIT 31 /* Called synchronously from PM API */ #define BSM_ALLCOMPONENTS 0x00000000 #define BSM_VXDS 0x00000001 #define BSM_NETDRIVER 0x00000002 #define BSM_INSTALLABLEDRIVERS 0x00000004 #define BSM_APPLICATIONS 0x00000008 /* * Message = WM_DEVICECHANGE * wParam = DBT_APPYBEGIN * lParam = (not used) * * 'Appy-time is now available. This message is itself sent * at 'Appy-time. * * Message = WM_DEVICECHANGE * wParam = DBT_APPYEND * lParam = (not used) * * 'Appy-time is no longer available. This message is *NOT* sent * at 'Appy-time. (It cannot be, because 'Appy-time is gone.) * * NOTE! It is possible for DBT_APPYBEGIN and DBT_APPYEND to be sent * multiple times during a single Windows session. Each appearance of * 'Appy-time is bracketed by these two messages, but 'Appy-time may * momentarily become unavailable during otherwise normal Windows * processing. The current status of 'Appy-time availability can always * be obtained from a call to _SHELL_QueryAppyTimeAvailable. */ #define DBT_APPYBEGIN 0x0000 #define DBT_APPYEND 0x0001 /* * Message = WM_DEVICECHANGE * wParam = DBT_DEVNODES_CHANGED * lParam = 0 * * send when configmg finished a process tree batch. Some devnodes * may have been added or removed. This is used by ring3 people which * need to be refreshed whenever any devnode changed occur (like * device manager). People specific to certain devices should use * DBT_DEVICE* instead. */ #define DBT_DEVNODES_CHANGED 0x0007 /* * Message = WM_DEVICECHANGE * wParam = DBT_QUERYCHANGECONFIG * lParam = 0 * * sent to ask if a config change is allowed */ #define DBT_QUERYCHANGECONFIG 0x0017 /* * Message = WM_DEVICECHANGE * wParam = DBT_CONFIGCHANGED * lParam = 0 * * sent when a config has changed */ #define DBT_CONFIGCHANGED 0x0018 /* * Message = WM_DEVICECHANGE * wParam = DBT_CONFIGCHANGECANCELED * lParam = 0 * * someone cancelled the config change */ #define DBT_CONFIGCHANGECANCELED 0x0019 /* * Message = WM_DEVICECHANGE * wParam = DBT_MONITORCHANGE * lParam = new resolution to use (LOWORD=x, HIWORD=y) * if 0, use the default res for current config * * this message is sent when the display monitor has changed * and the system should change the display mode to match it. */ #define DBT_MONITORCHANGE 0x001B /* * Message = WM_DEVICECHANGE * wParam = DBT_SHELLLOGGEDON * lParam = 0 * * The shell has finished login on: VxD can now do Shell_EXEC. */ #define DBT_SHELLLOGGEDON 0x0020 /* * Message = WM_DEVICECHANGE * wParam = DBT_CONFIGMGAPI * lParam = CONFIGMG API Packet * * CONFIGMG ring 3 call. */ #define DBT_CONFIGMGAPI32 0x0022 /* * Message = WM_DEVICECHANGE * wParam = DBT_VXDINITCOMPLETE * lParam = 0 * * CONFIGMG ring 3 call. */ #define DBT_VXDINITCOMPLETE 0x0023 /* * Message = WM_DEVICECHANGE * wParam = DBT_VOLLOCK* * lParam = pointer to VolLockBroadcast structure described below * * Messages issued by IFSMGR for volume locking purposes on WM_DEVICECHANGE. * All these messages pass a pointer to a struct which has no pointers. */ #define DBT_VOLLOCKQUERYLOCK 0x8041 #define DBT_VOLLOCKLOCKTAKEN 0x8042 #define DBT_VOLLOCKLOCKFAILED 0x8043 #define DBT_VOLLOCKQUERYUNLOCK 0x8044 #define DBT_VOLLOCKLOCKRELEASED 0x8045 #define DBT_VOLLOCKUNLOCKFAILED 0x8046 /* * Device broadcast header */ struct _DEV_BROADCAST_HDR { /* */ DWORD dbch_size; DWORD dbch_devicetype; DWORD dbch_reserved; }; typedef struct _DEV_BROADCAST_HDR DEV_BROADCAST_HDR; typedef DEV_BROADCAST_HDR DBTFAR *PDEV_BROADCAST_HDR; /* * Structure for volume lock broadcast */ typedef struct VolLockBroadcast VolLockBroadcast; typedef VolLockBroadcast *pVolLockBroadcast; struct VolLockBroadcast { struct _DEV_BROADCAST_HDR vlb_dbh; DWORD vlb_owner; // thread on which lock request is being issued BYTE vlb_perms; // lock permission flags defined below BYTE vlb_lockType; // type of lock BYTE vlb_drive; // drive on which lock is issued BYTE vlb_flags; // miscellaneous flags }; /* * Values for vlb_perms */ #define LOCKP_ALLOW_WRITES 0x01 // Bit 0 set - allow writes #define LOCKP_FAIL_WRITES 0x00 // Bit 0 clear - fail writes #define LOCKP_FAIL_MEM_MAPPING 0x02 // Bit 1 set - fail memory mappings #define LOCKP_ALLOW_MEM_MAPPING 0x00 // Bit 1 clear - allow memory mappings #define LOCKP_USER_MASK 0x03 // Mask for user lock flags #define LOCKP_LOCK_FOR_FORMAT 0x04 // Level 0 lock for format /* * Values for vlb_flags */ #define LOCKF_LOGICAL_LOCK 0x00 // Bit 0 clear - logical lock #define LOCKF_PHYSICAL_LOCK 0x01 // Bit 0 set - physical lock /* * Message = WM_DEVICECHANGE * wParam = DBT_NODISKSPACE * lParam = drive number of drive that is out of disk space (1-based) * * Message issued by IFS manager when it detects that a drive is run out of * free space. */ #define DBT_NO_DISK_SPACE 0x0047 /* * Message = WM_DEVICECHANGE * wParam = DBT_LOW_DISK_SPACE * lParam = drive number of drive that is low on disk space (1-based) * * Message issued by VFAT when it detects that a drive it has mounted * has the remaning free space below a threshold specified by the * registry or by a disk space management application. * The broadcast is issued by VFAT ONLY when space is either allocated * or freed by VFAT. */ #define DBT_LOW_DISK_SPACE 0x0048 #define DBT_CONFIGMGPRIVATE 0x7FFF /* * The following messages are for WM_DEVICECHANGE. The immediate list * is for the wParam. ALL THESE MESSAGES PASS A POINTER TO A STRUCT * STARTING WITH A DWORD SIZE AND HAVING NO POINTER IN THE STRUCT. * */ #define DBT_DEVICEARRIVAL 0x8000 // system detected a new device #define DBT_DEVICEQUERYREMOVE 0x8001 // wants to remove, may fail #define DBT_DEVICEQUERYREMOVEFAILED 0x8002 // removal aborted #define DBT_DEVICEREMOVEPENDING 0x8003 // about to remove, still avail. #define DBT_DEVICEREMOVECOMPLETE 0x8004 // device is gone #define DBT_DEVICETYPESPECIFIC 0x8005 // type specific event #if(WINVER >= 0x040A) #define DBT_CUSTOMEVENT 0x8006 // user-defined event #endif /* WINVER >= 0x040A */ #define DBT_DEVTYP_OEM 0x00000000 // oem-defined device type #define DBT_DEVTYP_DEVNODE 0x00000001 // devnode number #define DBT_DEVTYP_VOLUME 0x00000002 // logical volume #define DBT_DEVTYP_PORT 0x00000003 // serial, parallel #define DBT_DEVTYP_NET 0x00000004 // network resource #if(WINVER >= 0x040A) #define DBT_DEVTYP_DEVICEINTERFACE 0x00000005 // device interface class #define DBT_DEVTYP_HANDLE 0x00000006 // file system handle #endif /* WINVER >= 0x040A */ struct _DEV_BROADCAST_HEADER { /* */ DWORD dbcd_size; DWORD dbcd_devicetype; DWORD dbcd_reserved; }; struct _DEV_BROADCAST_OEM { /* */ DWORD dbco_size; DWORD dbco_devicetype; DWORD dbco_reserved; DWORD dbco_identifier; DWORD dbco_suppfunc; }; typedef struct _DEV_BROADCAST_OEM DEV_BROADCAST_OEM; typedef DEV_BROADCAST_OEM DBTFAR *PDEV_BROADCAST_OEM; struct _DEV_BROADCAST_DEVNODE { /* */ DWORD dbcd_size; DWORD dbcd_devicetype; DWORD dbcd_reserved; DWORD dbcd_devnode; }; typedef struct _DEV_BROADCAST_DEVNODE DEV_BROADCAST_DEVNODE; typedef DEV_BROADCAST_DEVNODE DBTFAR *PDEV_BROADCAST_DEVNODE; struct _DEV_BROADCAST_VOLUME { /* */ DWORD dbcv_size; DWORD dbcv_devicetype; DWORD dbcv_reserved; DWORD dbcv_unitmask; WORD dbcv_flags; }; typedef struct _DEV_BROADCAST_VOLUME DEV_BROADCAST_VOLUME; typedef DEV_BROADCAST_VOLUME DBTFAR *PDEV_BROADCAST_VOLUME; #define DBTF_MEDIA 0x0001 // media comings and goings #define DBTF_NET 0x0002 // network volume typedef struct _DEV_BROADCAST_PORT_A { DWORD dbcp_size; DWORD dbcp_devicetype; DWORD dbcp_reserved; char dbcp_name[1]; } DEV_BROADCAST_PORT_A, *PDEV_BROADCAST_PORT_A; typedef struct _DEV_BROADCAST_PORT_W { DWORD dbcp_size; DWORD dbcp_devicetype; DWORD dbcp_reserved; wchar_t dbcp_name[1]; } DEV_BROADCAST_PORT_W, DBTFAR *PDEV_BROADCAST_PORT_W; #ifdef UNICODE typedef DEV_BROADCAST_PORT_W DEV_BROADCAST_PORT; typedef PDEV_BROADCAST_PORT_W PDEV_BROADCAST_PORT; #else typedef DEV_BROADCAST_PORT_A DEV_BROADCAST_PORT; typedef PDEV_BROADCAST_PORT_A PDEV_BROADCAST_PORT; #endif struct _DEV_BROADCAST_NET { /* */ DWORD dbcn_size; DWORD dbcn_devicetype; DWORD dbcn_reserved; DWORD dbcn_resource; DWORD dbcn_flags; }; typedef struct _DEV_BROADCAST_NET DEV_BROADCAST_NET; typedef DEV_BROADCAST_NET DBTFAR *PDEV_BROADCAST_NET; #if(WINVER >= 0x040A) typedef struct _DEV_BROADCAST_DEVICEINTERFACE_A { DWORD dbcc_size; DWORD dbcc_devicetype; DWORD dbcc_reserved; GUID dbcc_classguid; char dbcc_name[1]; } DEV_BROADCAST_DEVICEINTERFACE_A, *PDEV_BROADCAST_DEVICEINTERFACE_A; typedef struct _DEV_BROADCAST_DEVICEINTERFACE_W { DWORD dbcc_size; DWORD dbcc_devicetype; DWORD dbcc_reserved; GUID dbcc_classguid; wchar_t dbcc_name[1]; } DEV_BROADCAST_DEVICEINTERFACE_W, *PDEV_BROADCAST_DEVICEINTERFACE_W; #ifdef UNICODE typedef DEV_BROADCAST_DEVICEINTERFACE_W DEV_BROADCAST_DEVICEINTERFACE; typedef PDEV_BROADCAST_DEVICEINTERFACE_W PDEV_BROADCAST_DEVICEINTERFACE; #else typedef DEV_BROADCAST_DEVICEINTERFACE_A DEV_BROADCAST_DEVICEINTERFACE; typedef PDEV_BROADCAST_DEVICEINTERFACE_A PDEV_BROADCAST_DEVICEINTERFACE; #endif typedef struct _DEV_BROADCAST_HANDLE { DWORD dbch_size; DWORD dbch_devicetype; DWORD dbch_reserved; HANDLE dbch_handle; // file handle used in call to RegisterDeviceNotification HDEVNOTIFY dbch_hdevnotify; // returned from RegisterDeviceNotification // // The following 3 fields are only valid if wParam is DBT_CUSTOMEVENT. // GUID dbch_eventguid; LONG dbch_nameoffset; // offset (bytes) of variable-length string buffer (-1 if none) BYTE dbch_data[1]; // variable-sized buffer, potentially containing binary and/or text data } DEV_BROADCAST_HANDLE, *PDEV_BROADCAST_HANDLE; #endif /* WINVER >= 0x040A */ #define DBTF_RESOURCE 0x00000001 // network resource #define DBTF_XPORT 0x00000002 // new transport coming or going #define DBTF_SLOWNET 0x00000004 // new incoming transport is slow // (dbcn_resource undefined for now) #define DBT_VPOWERDAPI 0x8100 // VPOWERD API for Win95 /* * User-defined message types all use wParam = 0xFFFF with the * lParam a pointer to the structure below. * * dbud_dbh - DEV_BROADCAST_HEADER must be filled in as usual. * * dbud_szName contains a case-sensitive ASCIIZ name which names the * message. The message name consists of the vendor name, a backslash, * then arbitrary user-defined ASCIIZ text. For example: * * "WidgetWare\QueryScannerShutdown" * "WidgetWare\Video Q39S\AdapterReady" * * After the ASCIIZ name, arbitrary information may be provided. * Make sure that dbud_dbh.dbch_size is big enough to encompass * all the data. And remember that nothing in the structure may * contain pointers. */ #define DBT_USERDEFINED 0xFFFF struct _DEV_BROADCAST_USERDEFINED { /* */ struct _DEV_BROADCAST_HDR dbud_dbh; char dbud_szName[1]; /* ASCIIZ name */ /* BYTE dbud_rgbUserDefined[];*/ /* User-defined contents */ }; #endif // _DBT_H