Windows2003-3790/multimedia/media/winmm/drvr.h
2020-09-30 16:53:55 +02:00

78 lines
2.6 KiB
C

/******************************************************************************
Copyright (c) 1985-1998 Microsoft Corporation
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
28-FEB-1992 ROBINSP Port to NT
*****************************************************************************/
typedef LRESULT (*DRIVERPROC)
(DWORD_PTR dwDriverID, HDRVR hDriver, UINT wMessage, LPARAM lParam1, LPARAM lParam2);
#define DRIVER_PROC_NAME "DriverProc"
#if 0
extern BOOL fUseWinAPI;
#else
#define fUseWinAPI FALSE
#endif
typedef struct tagDRIVERTABLE
{
UINT fFirstEntry:1;
UINT fBusy:1;
DWORD_PTR dwDriverIdentifier;
DWORD_PTR hModule;
DRIVERPROC lpDriverEntryPoint;
} DRIVERTABLE;
typedef DRIVERTABLE FAR *LPDRIVERTABLE;
LRESULT FAR PASCAL InternalBroadcastDriverMessage(UINT, UINT, LPARAM, LPARAM, UINT);
LRESULT FAR PASCAL InternalCloseDriver(UINT, LPARAM, LPARAM, BOOL);
LRESULT FAR PASCAL InternalOpenDriver(LPCWSTR, LPCWSTR, LPARAM, BOOL);
LRESULT FAR PASCAL InternalLoadDriver(LPCWSTR, LPCWSTR, LPWSTR, UINT, BOOL);
UINT FAR PASCAL InternalFreeDriver(UINT, 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 (LPCWSTR, LPCWSTR, LPWSTR, LPWSTR, UINT);
/* Defines for internalbroadcastdrivermessage flags */
#define IBDM_SENDMESSAGE 0x0001
#define IBDM_REVERSE 0x0002
#define IBDM_ONEINSTANCEONLY 0x0004
/* Multi-thread protection for OpenDriver etc */
#define DrvEnter() EnterCriticalSection(&DriverListCritSec)
#define DrvLeave() LeaveCriticalSection(&DriverListCritSec)
/*
* DriverListCritSec keeps our handling of the driver list and count
* protected
*
* DriverLoadFreeCritSec keeps our loads and frees from overlapping
*/
extern CRITICAL_SECTION DriverListCritSec;
extern CRITICAL_SECTION DriverLoadFreeCritSec;
#define REGSTR_PATH_WAVEMAPPER TEXT("Software\\Microsoft\\Windows NT\\CurrentVersion\\Wave Mapper")
#define REGSTR_VALUE_MAPPABLE TEXT("Mappable")