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Almathera Ten Pack 3: CDPD 3
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fish
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741
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rkrm_devices
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AskKeymap.c
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C/C++ Source or Header
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1992-09-03
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5KB
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141 lines
/*
* Copyright (c) 1992 Commodore-Amiga, Inc.
*
* This example is provided in electronic form by Commodore-Amiga, Inc. for
* use with the "Amiga ROM Kernel Reference Manual: Devices", 3rd Edition,
* published by Addison-Wesley (ISBN 0-201-56775-X).
*
* The "Amiga ROM Kernel Reference Manual: Devices" contains additional
* information on the correct usage of the techniques and operating system
* functions presented in these examples. The source and executable code
* of these examples may only be distributed in free electronic form, via
* bulletin board or as part of a fully non-commercial and freely
* redistributable diskette. Both the source and executable code (including
* comments) must be included, without modification, in any copy. This
* example may not be published in printed form or distributed with any
* commercial product. However, the programming techniques and support
* routines set forth in these examples may be used in the development
* of original executable software products for Commodore Amiga computers.
*
* All other rights reserved.
*
* This example is provided "as-is" and is subject to change; no
* warranties are made. All use is at your own risk. No liability or
* responsibility is assumed.
*
***************************************************************************
*
* AskKeymap.c
*
* Example of using the CD_ASKKEYMAP command.
*
* Compile with SAS C 5.10
* lc -b1 -cfistq -v -y -L AskKeymap.c
*
*/
#include <exec/types.h>
#include <exec/memory.h>
#include <exec/io.h>
#include <exec/libraries.h>
#include <devices/console.h>
#include <devices/keymap.h>
#include <devices/conunit.h>
#include <clib/exec_protos.h>
#include <clib/alib_protos.h>
#include <stdio.h>
#ifdef LATTICE
int CXBRK(void) { return(0); } /* Disable SAS CTRL/C handling */
int chkabort(void) { return(0); } /* really */
#endif
extern struct Library *SysBase;
VOID main(VOID)
{
struct MsgPort *ConsoleMP; /* pointer to our message port */
struct IOStdReq *ConsoleIO; /* pointer to our IORequest */
struct KeyMap *keymap; /* pointer to keymap */
int i,j;
UBYTE *prt;
/* Release 2 (V36) or a later version of the OS is required */
if(SysBase->lib_Version>=36)
{
/* Create the message port */
if (ConsoleMP=CreateMsgPort())
{
/* Create the IORequest */
if (ConsoleIO = CreateIORequest(ConsoleMP,sizeof(struct IOStdReq)))
{
/* Open the Console device */
if ( OpenDevice("console.device",CONU_LIBRARY,
(struct IORequest *)ConsoleIO,0L) )
/* Inform user that it could not be opened */
printf("Error: console.device did not open\n");
else
{
/* Allocate memory for the keymap */
if (keymap = (struct KeyMap *)AllocMem(sizeof(struct KeyMap),
MEMF_PUBLIC | MEMF_CLEAR))
{
/* device opened, send query command to it */
ConsoleIO->io_Length = sizeof(struct KeyMap);
/* where to put it */
ConsoleIO->io_Data = (APTR)keymap;
ConsoleIO->io_Command = CD_ASKKEYMAP;
if (DoIO((struct IORequest *)ConsoleIO))
/* Inform user that Askkeymap failed */
printf("AskKeyMap failed. Error - %d\n",
ConsoleIO->io_Error);
else
{
/* print values for top row of keyboard */
prt = (UBYTE *)keymap->km_LoKeyMap;
printf("Result of CD_ASKKEYMAP for top row of keyboard\n\n");
printf("\tShift\n");
printf("\tAlt\tAlt\tShift\tNo Qualifier\n");
for(j=0;j<14;j++)
{
for (i=0;i<4;i++)
printf("\t%c",*prt++);
printf("\n");
}
}
/* Deallocate the memory for the keymap */
FreeMem(keymap,sizeof(struct KeyMap));
}
else
printf("Error: Could not allocate memory for keymap\n");
/* Close the Console device */
CloseDevice((struct IORequest *)ConsoleIO);
}
/* Delete the IORequest */
DeleteIORequest(ConsoleIO);
}
else
/* Inform user that the IORequest could be created */
printf("Error: Could create IORequest\n");
/* Delete the message port */
DeleteMsgPort(ConsoleMP);
}
else
/* Inform user that the message port could not be created */
printf("Error: Could not create message port\n");
}
else
/* Inform user that this program reuqires Release 2 or later */
printf("Error: Release 2 (V36) or a later version of the OS required\n");
}