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-/****************************************************************************
-*
-* SciTech OS Portability Manager Library
-*
-* ========================================================================
-*
-* The contents of this file are subject to the SciTech MGL Public
-* License Version 1.0 (the "License"); you may not use this file
-* except in compliance with the License. You may obtain a copy of
-* the License at http://www.scitechsoft.com/mgl-license.txt
-*
-* Software distributed under the License is distributed on an
-* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
-* implied. See the License for the specific language governing
-* rights and limitations under the License.
-*
-* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
-*
-* The Initial Developer of the Original Code is SciTech Software, Inc.
-* All Rights Reserved.
-*
-* ========================================================================
-*
-* Language: ANSI C
-* Environment: Real mode and 16/32 bit Protected Mode
-*
-* Description: Header file for the interrupt handling extensions to the OS
-* Portability Manager Library. These extensions includes
-* simplified interrupt handling, allowing all common interrupt
-* handlers to be hooked and handled directly with normal C
-* functions, both in 16 bit and 32 bit modes. Note however that
-* simplified handling does not mean slow performance! All low
-* level interrupt handling is done efficiently in assembler
-* for speed (well actually necessary to insulate the
-* application from the lack of far pointers in 32 bit PM). The
-* interrupt handlers currently supported are:
-*
-* Mouse (0x33 callback)
-* Timer Tick (0x8)
-* Keyboard (0x9 and 0x15)
-* Control C/Break (0x23/0x1B)
-* Critical Error (0x24)
-*
-****************************************************************************/
-
-#ifndef __PMINT_H
-#define __PMINT_H
-
-/*--------------------------- Macros and Typedefs -------------------------*/
-
-#ifdef __SMX32__
-/* PC interrupts (Ensure consistent with pme.inc) */
-#define PM_IRQ0 0x40
-#define PM_IRQ1 (PM_IRQ0+1)
-#define PM_IRQ6 (PM_IRQ0+6)
-#define PM_IRQ14 (PM_IRQ0+14)
-#endif
-
-/* Define the different types of interrupt handlers that we support */
-
-typedef uint (PMAPIP PM_criticalHandler)(uint axValue,uint diValue);
-typedef void (PMAPIP PM_breakHandler)(uint breakHit);
-typedef short (PMAPIP PM_key15Handler)(short scanCode);
-typedef void (PMAPIP PM_mouseHandler)(uint event, uint butstate,int x,int y,int mickeyX,int mickeyY);
-
-/* Create a type for representing far pointers in both 16 and 32 bit
- * protected mode.
- */
-
-#ifdef PM386
-typedef struct {
- long off;
- short sel;
- } PMFARPTR;
-#define PMNULL {0,0}
-#else
-typedef void *PMFARPTR;
-#define PMNULL NULL
-#endif
-
-/*--------------------------- Function Prototypes -------------------------*/
-
-#ifdef __cplusplus
-extern "C" { /* Use "C" linkage when in C++ mode */
-#endif
-
-/* Routine to load save default data segment selector value into a code
- * segment variable, and another to load the value into the DS register.
- */
-
-void PMAPI PM_loadDS(void);
-void PMAPI PM_saveDS(void);
-
-/* Routine to install a mouse interrupt handling routine. The
- * mouse handler routine is a normal C function, and the PM library
- * will take care of passing the correct parameters to the function,
- * and switching to a local stack.
- *
- * Note that you _must_ lock the memory containing the mouse interrupt
- * handler with the PM_lockPages() function otherwise you may encounter
- * problems in virtual memory environments.
- */
-
-int PMAPI PM_setMouseHandler(int mask,PM_mouseHandler mh);
-void PMAPI PM_restoreMouseHandler(void);
-
-/* Routine to reset the mouse driver, and re-install the current
- * mouse interrupt handler if one was currently installed (since the
- * mouse reset will automatically remove this handler.
- */
-
-void PMAPI PM_resetMouseDriver(int hardReset);
-
-/* Routine to reset the mouse driver, and re-install the current
- * mouse interrupt handler if one was currently installed (since the
- * mouse reset will automatically remove this handler.
- */
-
-void PMAPI PM_resetMouseDriver(int hardReset);
-
-/* Routines to install and remove timer interrupt handlers.
- *
- * Note that you _must_ lock the memory containing the interrupt
- * handlers with the PM_lockPages() function otherwise you may encounter
- * problems in virtual memory environments.
- */
-
-void PMAPI PM_setTimerHandler(PM_intHandler ih);
-void PMAPI PM_chainPrevTimer(void);
-void PMAPI PM_restoreTimerHandler(void);
-
-/* Routines to install and keyboard interrupt handlers.
- *
- * Note that you _must_ lock the memory containing the interrupt
- * handlers with the PM_lockPages() function otherwise you may encounter
- * problems in virtual memory environments.
- */
-
-void PMAPI PM_setKeyHandler(PM_intHandler ih);
-void PMAPI PM_chainPrevKey(void);
-void PMAPI PM_restoreKeyHandler(void);
-
-/* Routines to hook and unhook the alternate Int 15h keyboard intercept
- * callout routine. Your event handler will need to return the following:
- *
- * scanCode - Let the BIOS process scan code (chains to previous handler)
- * 0 - You have processed the scan code so flush from BIOS
- *
- * Note that this is not available under all DOS extenders, but does
- * work under real mode, DOS4GW and X32-VM. It does not work under the
- * PowerPack 32 bit DOS extenders. If you figure out how to do it let us know!
- */
-
-void PMAPI PM_setKey15Handler(PM_key15Handler ih);
-void PMAPI PM_restoreKey15Handler(void);
-
-/* Routines to install and remove the control c/break interrupt handlers.
- * Interrupt handling is performed by the PM/Pro library, and you can call
- * the supplied routines to test the status of the Ctrl-C and Ctrl-Break
- * flags. If you pass the value TRUE for 'clearFlag' to these routines,
- * the internal flags will be reset in order to catch another Ctrl-C or
- * Ctrl-Break interrupt.
- */
-
-void PMAPI PM_installBreakHandler(void);
-int PMAPI PM_ctrlCHit(int clearFlag);
-int PMAPI PM_ctrlBreakHit(int clearFlag);
-void PMAPI PM_restoreBreakHandler(void);
-
-/* Routine to install an alternate break handler that will call your
- * code directly. This is not available under all DOS extenders, but does
- * work under real mode, DOS4GW and X32-VM. It does not work under the
- * PowerPack 32 bit DOS extenders. If you figure out how to do it let us know!
- *
- * Note that you should either install one or the other, but not both!
- */
-
-void PMAPI PM_installAltBreakHandler(PM_breakHandler bh);
-
-/* Routines to install and remove the critical error handler. The interrupt
- * is handled by the PM/Pro library, and the operation will always be failed.
- * You can check the status of the critical error handler with the
- * appropriate function. If you pass the value TRUE for 'clearFlag', the
- * internal flag will be reset ready to catch another critical error.
- */
-
-void PMAPI PM_installCriticalHandler(void);
-int PMAPI PM_criticalError(int *axValue, int *diValue, int clearFlag);
-void PMAPI PM_restoreCriticalHandler(void);
-
-/* Routine to install an alternate critical handler that will call your
- * code directly. This is not available under all DOS extenders, but does
- * work under real mode, DOS4GW and X32-VM. It does not work under the
- * PowerPack 32 bit DOS extenders. If you figure out how to do it let us know!
- *
- * Note that you should either install one or the other, but not both!
- */
-
-void PMAPI PM_installAltCriticalHandler(PM_criticalHandler);
-
-/* Functions to manage protected mode only interrupt handlers */
-
-void PMAPI PM_getPMvect(int intno, PMFARPTR *isr);
-void PMAPI PM_setPMvect(int intno, PM_intHandler ih);
-void PMAPI PM_restorePMvect(int intno, PMFARPTR isr);
-
-#ifdef __cplusplus
-} /* End of "C" linkage for C++ */
-#endif
-
-#endif /* __PMINT_H */