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- /*
- * 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- * example may not be published in printed form or distributed with any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.
- *
- **************************************************************************
- *
- * Swap_Buttons.c
- *
- * This example swaps the function of the left and right mouse buttons
- * The C code is just the wrapper that installs and removes the
- * input.device handler that does the work.
- *
- * The handler is written in assembly code since it is important that
- * handlers be as fast as possible while processing the input events.
- *
- *
- * Compile and link as follows:
- *
- * SAS C 5.10:
- *
- * LC -b1 -cfirst -v -w Swap_Buttons.c
- *
- * Adapt assemble:
- *
- * HX68 InputHandler.a to InputHandler.o
- *
- * BLink:
- *
- * BLink from LIB:c.o+Swap_Buttons.o+InputHandler.o LIB LIB:lc.lib LIB:amiga.lib TO Swap_Buttons
- *
- */
-
- #include <exec/types.h>
- #include <exec/memory.h>
- #include <exec/interrupts.h>
- #include <devices/input.h>
- #include <intuition/intuition.h>
-
- #include <clib/exec_protos.h>
- #include <clib/alib_protos.h>
- #include <clib/intuition_protos.h>
-
- #include <stdio.h>
-
- #ifdef LATTICE
- int CXBRK(void) { return(0); } /* Disable SAS CTRL/C handling */
- int chkabort(void) { return(0); } /* really */
- #endif
-
-
- UBYTE NameString[]="Swap Buttons";
-
- struct NewWindow mywin={50,40,124,18,0,1,CLOSEWINDOW,
- WINDOWDRAG|WINDOWCLOSE|SIMPLE_REFRESH|NOCAREREFRESH,
- NULL,NULL,NameString,NULL,NULL,0,0,0,0,WBENCHSCREEN};
-
- extern VOID ButtonSwap();
-
- extern struct IntuitionBase *IntuitionBase;
-
- /*
- * This routine opens a window and waits for the one event that
- * can happen (CLOSEWINDOW) This is just to let the user play with
- * the swapped buttons and then close the program...
- */
- VOID WaitForUser(VOID)
- {
- struct Window *win;
-
- if (IntuitionBase=(struct IntuitionBase *)
- OpenLibrary("intuition.library",33L))
- {
- if (win=OpenWindow(&mywin))
- {
- WaitPort(win->UserPort);
- ReplyMsg(GetMsg(win->UserPort));
-
- CloseWindow(win);
- }
- CloseLibrary((struct Library *)IntuitionBase);
- }
- }
-
- VOID main(VOID)
- {
- struct IOStdReq *inputReqBlk;
- struct MsgPort *inputPort;
- struct Interrupt *inputHandler;
-
- if (inputPort=CreatePort(NULL,NULL))
- {
- if (inputHandler=AllocMem(sizeof(struct Interrupt),
- MEMF_PUBLIC|MEMF_CLEAR))
- {
- if (inputReqBlk=(struct IOStdReq *)CreateExtIO(inputPort,
- sizeof(struct IOStdReq)))
- {
- if (!OpenDevice("input.device",NULL,
- (struct IORequest *)inputReqBlk,NULL))
- {
- inputHandler->is_Code=ButtonSwap;
- inputHandler->is_Data=NULL;
- inputHandler->is_Node.ln_Pri=100;
- inputHandler->is_Node.ln_Name=NameString;
- inputReqBlk->io_Data=(APTR)inputHandler;
- inputReqBlk->io_Command=IND_ADDHANDLER;
- DoIO((struct IORequest *)inputReqBlk);
-
- WaitForUser();
-
- inputReqBlk->io_Data=(APTR)inputHandler;
- inputReqBlk->io_Command=IND_REMHANDLER;
- DoIO((struct IORequest *)inputReqBlk);
-
- CloseDevice((struct IORequest *)inputReqBlk);
- }
- else
- printf("Error: Could not open input.device\n");
-
- DeleteExtIO((struct IORequest *)inputReqBlk);
- }
- else
- printf("Error: Could not create IORequest\n");
-
- FreeMem(inputHandler,sizeof(struct Interrupt));
- }
- else
- printf("Error: Could not allocate interrupt struct memory\n");
-
- DeletePort(inputPort);
- }
- else
- printf("Error: Could not create message port\n");
- }
-