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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: any
-*
-* Description: Test program to check the ability to install a C based
-* keyboard Int 15h interrupt handler. This is an alternate
-* way to intercept scancodes from the keyboard by hooking
-* the Int 15h keyboard intercept callout.
-*
-* Functions tested: PM_setKey15Handler()
-* PM_restoreKey15Handler()
-*
-*
-****************************************************************************/
-
-#include <stdlib.h>
-#include <stdio.h>
-#include "pmapi.h"
-
-volatile long count = 0;
-volatile short lastScanCode = 0;
-
-#pragma off (check_stack) /* No stack checking under Watcom */
-
-short PMAPI keyHandler(short scanCode)
-{
- count++;
- lastScanCode = scanCode;
- return scanCode; /* Let BIOS process as normal */
-}
-
-int main(void)
-{
- int ch;
- PM_lockHandle lh;
-
- printf("Program running in ");
- switch (PM_getModeType()) {
- case PM_realMode:
- printf("real mode.\n\n");
- break;
- case PM_286:
- printf("16 bit protected mode.\n\n");
- break;
- case PM_386:
- printf("32 bit protected mode.\n\n");
- break;
- }
-
- /* Install our timer handler and lock handler pages in memory. It is
- * difficult to get the size of a function in C, but we know our
- * function is well less than 100 bytes (and an entire 4k page will
- * need to be locked by the server anyway).
- */
- PM_lockCodePages((__codePtr)keyHandler,100,&lh);
- PM_lockDataPages((void*)&count,sizeof(count),&lh);
- PM_installBreakHandler(); /* We *DONT* want Ctrl-Break's! */
- PM_setKey15Handler(keyHandler);
- printf("Keyboard interrupt handler installed - Type some characters and\n");
- printf("hit ESC to exit\n");
- while ((ch = PM_getch()) != 0x1B) {
- printf("%c", ch);
- fflush(stdout);
- }
-
- PM_restoreKey15Handler();
- PM_restoreBreakHandler();
- PM_unlockDataPages((void*)&count,sizeof(count),&lh);
- PM_unlockCodePages((__codePtr)keyHandler,100,&lh);
- printf("\n\nKeyboard handler was called %ld times\n", count);
- printf("Last scan code %04X\n", lastScanCode);
- return 0;
-}
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