windows-nt/Source/XPSP1/NT/base/mvdm/wow16/mmsystem/drvr.h

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2020-09-26 03:20:57 -05:00
/******************************************************************************
Copyright (C) Microsoft Corporation 1985-1990. All rights reserved.
Title: drvr.h - Installable driver code internal header file.
Version: 1.00
Date: 10-Jun-1990
Author: DAVIDDS ROBWI
------------------------------------------------------------------------------
Change log:
DATE REV DESCRIPTION
----------- ----- -----------------------------------------------------------
10-JUN-1990 ROBWI Based on windows 3.1 installable driver code by davidds
*****************************************************************************/
typedef LRESULT (CALLBACK *DRIVERPROC)
(DWORD dwDriverID, HDRVR hDriver, UINT wMessage, LPARAM lParam1, LPARAM lParam2);
typedef struct tagDRIVERTABLE
{
WORD fFirstEntry:1;
WORD fBusy:1;
DWORD dwDriverIdentifier;
WORD hModule;
DRIVERPROC lpDriverEntryPoint;
} DRIVERTABLE;
typedef DRIVERTABLE FAR *LPDRIVERTABLE;
LONG FAR PASCAL InternalBroadcastDriverMessage(WORD, WORD, LONG, LONG, WORD);
LONG FAR PASCAL InternalCloseDriver(WORD, LONG, LONG, BOOL);
LONG FAR PASCAL InternalOpenDriver(LPSTR, LPSTR, LONG, BOOL);
LONG FAR PASCAL InternalLoadDriver(LPSTR, LPSTR, LPSTR, WORD, BOOL);
WORD FAR PASCAL InternalFreeDriver(WORD, BOOL);
void FAR PASCAL InternalInstallDriverChain (void);
void FAR PASCAL InternalDriverDisable (void);
void FAR PASCAL InternalDriverEnable (void);
int FAR PASCAL GetDrvrUsage(HANDLE);
HANDLE FAR PASCAL LoadAliasedLibrary (LPSTR, LPSTR, LPSTR, LPSTR, WORD);
void NEAR PASCAL DrvInit(void);
/* Defines for internalbroadcastdrivermessage flags */
#define IBDM_SENDMESSAGE 0x0001
#define IBDM_REVERSE 0x0002
#define IBDM_ONEINSTANCEONLY 0x0004