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MessagesForMacintosh/mac_main.c

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#include <Types.h>
#include <Resources.h>
#include <Quickdraw.h>
#include <Fonts.h>
#include <Events.h>
#include <Windows.h>
#include <Menus.h>
#include <TextEdit.h>
#include <Dialogs.h>
#include <ToolUtils.h>
#include <Memory.h>
#include <Sound.h>
#include <SegLoad.h>
#include <Files.h>
#include <OSUtils.h>
#include <DiskInit.h>
#include <Packages.h>
#include <Traps.h>
#include <Serial.h>
#include <Devices.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mac_main.h"
// #define MAC_APP_DEBUGGING
//#define PROFILING 1
#ifdef PROFILING
OSErr writeSerialPortProfile(const char* str)
{
#define PRINTER_PORT_OUT "\p.BOut"
OSErr err;
short serialPort = 0;
err = OpenDriver(PRINTER_PORT_OUT, &serialPort);
if (err < 0) return err;
CntrlParam cb2;
cb2.ioCRefNum = serialPort;
cb2.csCode = 8;
cb2.csParam[0] = stop10 | noParity | data8 | baud9600;
err = PBControl ((ParmBlkPtr) & cb2, 0);
if (err < 0) return err;
IOParam pb2;
pb2.ioRefNum = serialPort;
char str2[1024];
sprintf(str2, "%s\n", str);
pb2.ioBuffer = (Ptr) str2;
pb2.ioReqCount = strlen(str2);
err = PBWrite((ParmBlkPtr)& pb2, 0);
if (err < 0) return err;
// hangs on Mac512K (write hasn't finished due to slow Speed when we wants to close driver
// err = CloseDriver(serialPort);
return err;
}
void PROFILE_START(char *name) {
char profileMessage[255];
sprintf(profileMessage, "PROFILE_START %s", name);
writeSerialPortProfile(profileMessage);
return;
}
void PROFILE_END(char *name) {
char profileMessage[255];
sprintf(profileMessage, "PROFILE_END %s", name);
writeSerialPortProfile(profileMessage);
return;
}
void PROFILE_COMPLETE() {
writeSerialPortProfile("PROFILE_COMPLETE");
return;
}
#endif
#include "SerialHelper.h"
#include "Quickdraw.h"
#include "output_js.h"
#include "coprocessorjs.h"
#include "nuklear_app.c"
/* GMac is used to hold the result of a SysEnvirons call. This makes
it convenient for any routine to check the environment. */
SysEnvRec gMac; /* set up by Initialize */
/* GHasWaitNextEvent is set at startup, and tells whether the WaitNextEvent
trap is available. If it is false, we know that we must call GetNextEvent. */
Boolean gHasWaitNextEvent; /* set up by Initialize */
/* GInBackground is maintained by our osEvent handling routines. Any part of
the program can check it to find out if it is currently in the background. */
Boolean gInBackground; /* maintained by Initialize and DoEvent */
/* The following globals are the state of the window. If we supported more than
one window, they would be attatched to each document, rather than globals. */
/* Here are declarations for all of the C routines. In MPW 3.0 we can use
actual prototypes for parameter type checking. */
void EventLoop( struct nk_context *ctx );
void DoEvent( EventRecord *event, struct nk_context *ctx );
void GetGlobalMouse( Point *mouse );
void DoUpdate( WindowPtr window );
void DoActivate( WindowPtr window, Boolean becomingActive );
void DoContentClick( WindowPtr window );
void AdjustMenus( void );
void DoMenuCommand( long menuResult );
Boolean DoCloseWindow( WindowPtr window );
void Terminate( void );
void Initialize( void );
Boolean GoGetRect( short rectID, Rect *theRect );
void ForceEnvirons( void );
Boolean IsAppWindow( WindowPtr window );
Boolean IsDAWindow( WindowPtr window );
Boolean TrapAvailable( short tNumber, TrapType tType );
void AlertUser( void );
/* Define HiWrd and LoWrd macros for efficiency. */
#define HiWrd(aLong) (((aLong) >> 16) & 0xFFFF)
#define LoWrd(aLong) ((aLong) & 0xFFFF)
/* Define TopLeft and BotRight macros for convenience. Notice the implicit
dependency on the ordering of fields within a Rect */
#define TopLeft(aRect) (* (Point *) &(aRect).top)
#define BotRight(aRect) (* (Point *) &(aRect).bottom)
// this function, EventLoop, and DoEvent contain all of the business logic necessary
// for our application to run
int main()
{
Initialize(); /* initialize the program */
UnloadSeg((Ptr) Initialize); /* note that Initialize must not be in Main! */
// run our nuklear app one time to render the window telling us to be patient for the coprocessor
// app to load up
struct nk_context *ctx = initializeNuklearApp();
SysBeep(1);
setupCoprocessor("nuklear", "modem"); // could also be "printer", modem is 0 in PCE settings - printer would be 1
// we could build a nuklear window for selection
char programResult[MAX_RECEIVE_SIZE];
sendProgramToCoprocessor((char *)OUTPUT_JS, programResult);
writeSerialPortDebug(boutRefNum, "coprocessor loaded");
coprocessorLoaded = 1;
EventLoop(ctx); /* call the main event loop */
return 0;
}
Boolean gotKeyboardEvent = false;
int gotKeyboardEventTime = 0;
void EventLoop(struct nk_context *ctx)
{
Boolean gotEvent;
EventRecord event;
Point mouse;
int lastMouseHPos = 0;
int lastMouseVPos = 0;
int lastUpdatedTickCountMessagesInChat = 0;
int lastUpdatedTickCountChatCounts = 0;
do {
// Don't do this, it won't yield anything useful
// and will make your app very slow:
// #ifdef PROFILING
// PROFILE_START("eventloop");
// #endif
if (gotKeyboardEvent && TickCount() > gotKeyboardEventTime + 20) {
gotKeyboardEvent = false;
ShowCursor();
}
// check for new stuff every 10 sec?
// note! this is used by some of the functionality in our nuklear_app to trigger
// new chat lookups
if (TickCount() - lastUpdatedTickCountMessagesInChat > 600) {
// writeSerialPortDebug(boutRefNum, "update by tick count");
lastUpdatedTickCountMessagesInChat = TickCount();
if (strcmp(activeChat, "no active chat")) {
// writeSerialPortDebug(boutRefNum, "check chat");
getHasNewMessagesInChat(activeChat);
}
}
// this should be out of sync with the counter above it so that we dont end up making
// two coprocessor calls on one event loop iteration
if (TickCount() - lastUpdatedTickCountChatCounts > 300) {
// writeSerialPortDebug(boutRefNum, "update by tick count");
lastUpdatedTickCountChatCounts = TickCount();
if (chatFriendlyNamesCounter > 0) {
// writeSerialPortDebug(boutRefNum, "check chat counts");
getChatCounts();
}
}
Boolean beganInput = false;
GetGlobalMouse(&mouse);
// as far as i can tell, there is no way to event on mouse movement with mac libraries,
// so we are just going to track on our own, and create our own events.
// this seems kind of a bummer to not pass this to event handling code, but to make
// it work we would need to create a dummy event, etc, so we will just directly
// call the nk_input_motion command
if (lastMouseHPos != mouse.h || lastMouseVPos != mouse.v) {
// if the mouse is in motion, try to capture all motion before moving on to rendering
while (lastMouseHPos != mouse.h || lastMouseVPos != mouse.v) {
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "nk_input_motion!");
#endif
Point tempPoint;
SetPt(&tempPoint, mouse.h, mouse.v);
GlobalToLocal(&tempPoint);
if (!beganInput) {
nk_input_begin(ctx);
}
nk_input_motion(ctx, tempPoint.h, tempPoint.v);
firstOrMouseMove = true;
beganInput = true;
mouse_x = tempPoint.h;
mouse_y = tempPoint.v;
lastUpdatedTickCountChatCounts = TickCount();
lastUpdatedTickCountMessagesInChat = TickCount();
lastMouseHPos = mouse.h;
lastMouseVPos = mouse.v;
GetGlobalMouse(&mouse);
}
} else {
gotEvent = GetNextEvent(everyEvent, &event);
gotMouseEvent = false;
// drain all events before rendering -- really this only applies to keyboard events and single mouse clicks now
while (gotEvent) {
lastUpdatedTickCountChatCounts = TickCount();
lastUpdatedTickCountMessagesInChat = TickCount();
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "calling to DoEvent");
#endif
if (!beganInput) {
nk_input_begin(ctx);
beganInput = true;
}
DoEvent(&event, ctx);
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "done with DoEvent");
#endif
if (!gotMouseEvent) {
gotEvent = GetNextEvent(everyEvent, &event);
} else {
gotEvent = false;
}
}
}
lastMouseHPos = mouse.h;
lastMouseVPos = mouse.v;
SystemTask();
// only re-render if there is an event, prevents screen flickering, speeds up app
if (beganInput || firstOrMouseMove || forceRedraw) {
#ifdef PROFILING
PROFILE_START("nk_input_end");
#endif
nk_input_end(ctx);
#ifdef PROFILING
PROFILE_END("nk_input_end");
PROFILE_START("nuklearApp");
#endif
firstOrMouseMove = false;
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "nuklearApp");
#endif
nuklearApp(ctx);
#ifdef PROFILING
PROFILE_END("nuklearApp");
PROFILE_START("nk_quickdraw_render");
#endif
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "nk_quickdraw_render");
char x[255];
sprintf(x, "why? beganInput: %d, firstOrMouseMove: %d, forceRedraw: %d", beganInput, firstOrMouseMove, forceRedraw);
writeSerialPortDebug(boutRefNum, x);
#endif
nk_quickdraw_render(FrontWindow(), ctx);
#ifdef PROFILING
PROFILE_END("nk_quickdraw_render");
PROFILE_START("nk_clear");
#endif
nk_clear(ctx);
#ifdef PROFILING
PROFILE_END("nk_clear");
#endif
}
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "nk_input_render complete");
#endif
// #ifdef PROFILING
// PROFILE_END("eventloop");
// #endif
} while ( true ); /* loop forever; we quit via ExitToShell */
} /*EventLoop*/
/* Do the right thing for an event. Determine what kind of event it is, and call
the appropriate routines. */
void DoEvent(EventRecord *event, struct nk_context *ctx) {
short part;
WindowPtr window;
Boolean hit;
char key;
Point aPoint;
switch ( event->what ) {
case mouseUp:
gotMouseEvent = true;
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "mouseup");
#endif
part = FindWindow(event->where, &window);
switch (part)
{
case inContent:
nk_quickdraw_handle_event(event, ctx);
break;
default:
break;
}
break;
case mouseDown:
gotMouseEvent = true;
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "mousedown");
#endif
part = FindWindow(event->where, &window);
switch ( part ) {
case inMenuBar: /* process a mouse menu command (if any) */
AdjustMenus();
DoMenuCommand(MenuSelect(event->where));
break;
case inSysWindow: /* let the system handle the mouseDown */
SystemClick(event, window);
break;
case inContent:
if ( window != FrontWindow() ) {
SelectWindow(window);
}
nk_quickdraw_handle_event(event, ctx);
break;
case inDrag: /* pass screenBits.bounds to get all gDevices */
DragWindow(window, event->where, &qd.screenBits.bounds);
break;
case inGrow:
break;
case inZoomIn:
case inZoomOut:
hit = TrackBox(window, event->where, part);
if ( hit ) {
SetPort(window); /* the window must be the current port... */
EraseRect(&window->portRect); /* because of a bug in ZoomWindow */
ZoomWindow(window, part, true); /* note that we invalidate and erase... */
InvalRect(&window->portRect); /* to make things look better on-screen */
}
break;
}
break;
case keyDown:
case autoKey: /* check for menukey equivalents */
if (!gotKeyboardEvent) {
HideCursor();
gotKeyboardEvent = true;
}
gotKeyboardEventTime = TickCount();
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "key");
#endif
key = event->message & charCodeMask;
if ( event->modifiers & cmdKey ) { /* Command key down */
if ( event->what == keyDown ) {
AdjustMenus(); /* enable/disable/check menu items properly */
DoMenuCommand(MenuKey(key));
}
}
nk_quickdraw_handle_event(event, ctx);
break;
case activateEvt:
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "activate");
#endif
DoActivate((WindowPtr) event->message, (event->modifiers & activeFlag) != 0);
break;
case updateEvt:
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "update");
#endif
DoUpdate((WindowPtr) event->message);
break;
/* 1.01 - It is not a bad idea to at least call DIBadMount in response
to a diskEvt, so that the user can format a floppy. */
case diskEvt:
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "disk");
#endif
if ( HiWord(event->message) != noErr ) {
SetPt(&aPoint, kDILeft, kDITop);
}
break;
case osEvt:
#ifdef MAC_APP_DEBUGGING
writeSerialPortDebug(boutRefNum, "os");
#endif
// this should be trigger on mousemove but does not -- if we can figure that out, we should call through to
// nk_quickdraw_handle_event, and allow it to handle the mousemove events
/* 1.02 - must BitAND with 0x0FF to get only low byte */
switch ((event->message >> 24) & 0x0FF) { /* high byte of message */
case kSuspendResumeMessage: /* suspend/resume is also an activate/deactivate */
gInBackground = (event->message & kResumeMask) == 0;
DoActivate(FrontWindow(), !gInBackground);
break;
}
break;
}
} /*DoEvent*/
/* Get the global coordinates of the mouse. When you call OSEventAvail
it will return either a pending event or a null event. In either case,
the where field of the event record will contain the current position
of the mouse in global coordinates and the modifiers field will reflect
the current state of the modifiers. Another way to get the global
coordinates is to call GetMouse and LocalToGlobal, but that requires
being sure that thePort is set to a valid port. */
void GetGlobalMouse(mouse)
Point *mouse;
{
EventRecord event;
OSEventAvail(kNoEvents, &event); /* we aren't interested in any events */
*mouse = event.where; /* just the mouse position */
} /*GetGlobalMouse*/
/* This is called when an update event is received for a window.
It calls DrawWindow to draw the contents of an application window.
As an effeciency measure that does not have to be followed, it
calls the drawing routine only if the visRgn is non-empty. This
will handle situations where calculations for drawing or drawing
itself is very time-consuming. */
void DoUpdate(window)
WindowPtr window;
{
if ( IsAppWindow(window) ) {
BeginUpdate(window);
EndUpdate(window);
}
} /*DoUpdate*/
/* This is called when a window is activated or deactivated.
In Sample, the Window Manager's handling of activate and
deactivate events is sufficient. Other applications may have
TextEdit records, controls, lists, etc., to activate/deactivate. */
void DoActivate(window, becomingActive)
WindowPtr window;
Boolean becomingActive;
{
if ( IsAppWindow(window) ) {
if ( becomingActive )
/* do whatever you need to at activation */ ;
else
/* do whatever you need to at deactivation */ ;
}
} /*DoActivate*/
/* Draw the contents of the application window. We do some drawing in color, using
Classic QuickDraw's color capabilities. This will be black and white on old
machines, but color on color machines. At this point, the windowÕs visRgn
is set to allow drawing only where it needs to be done. */
/* Enable and disable menus based on the current state.
The user can only select enabled menu items. We set up all the menu items
before calling MenuSelect or MenuKey, since these are the only times that
a menu item can be selected. Note that MenuSelect is also the only time
the user will see menu items. This approach to deciding what enable/
disable state a menu item has the advantage of concentrating all
the decision-making in one routine, as opposed to being spread throughout
the application. Other application designs may take a different approach
that is just as valid. */
void AdjustMenus()
{
WindowPtr window;
MenuHandle menu;
window = FrontWindow();
menu = GetMenuHandle(mFile);
if ( IsDAWindow(window) ) /* we can allow desk accessories to be closed from the menu */
EnableItem(menu, iClose);
else
DisableItem(menu, iClose); /* but not our traffic light window */
menu = GetMenuHandle(mEdit);
if ( IsDAWindow(window) ) { /* a desk accessory might need the edit menuÉ */
EnableItem(menu, iUndo);
EnableItem(menu, iCut);
EnableItem(menu, iCopy);
EnableItem(menu, iClear);
EnableItem(menu, iPaste);
} else { /* but we dont use it */
DisableItem(menu, iUndo);
DisableItem(menu, iCut);
DisableItem(menu, iCopy);
DisableItem(menu, iClear);
DisableItem(menu, iPaste);
}
menu = GetMenuHandle(mLight);
if ( IsAppWindow(window) ) { /* we know that it must be the traffic light */
EnableItem(menu, iStop);
EnableItem(menu, iGo);
} else {
DisableItem(menu, iStop);
DisableItem(menu, iGo);
}
} /*AdjustMenus*/
/* This is called when an item is chosen from the menu bar (after calling
MenuSelect or MenuKey). It performs the right operation for each command.
It is good to have both the result of MenuSelect and MenuKey go to
one routine like this to keep everything organized. */
void DoMenuCommand(menuResult)
long menuResult;
{
short menuID; /* the resource ID of the selected menu */
short menuItem; /* the item number of the selected menu */
short itemHit;
// Str255 daName;
// short daRefNum;
// Boolean handledByDA;
menuID = HiWord(menuResult); /* use macros for efficiency to... */
menuItem = LoWord(menuResult); /* get menu item number and menu number */
switch ( menuID ) {
case mApple:
switch ( menuItem ) {
// case iAbout: /* bring up alert for About */
default:
itemHit = Alert(rAboutAlert, nil);
break;
/*
default: // all non-About items in this menu are DAs
// type Str255 is an array in MPW 3
GetItem(GetMHandle(mApple), menuItem, daName);
daRefNum = OpenDeskAcc(daName);
break;
*/
}
break;
case mFile:
switch ( menuItem ) {
case iClose:
DoCloseWindow(FrontWindow());
break;
case iQuit:
Terminate();
break;
}
break;
case mEdit: /* call SystemEdit for DA editing & MultiFinder */
// handledByDA = SystemEdit(menuItem-1); /* since we donÕt do any Editing */
break;
case mLight:
// note this was co-opted to send new chats instead of the demo functionality. do the
// same thing for other menu items as necessary
switch (menuItem) {
case 2:
getChats();
break;
default:
sendNewChat = 1;
break;
}
// char x[255];
// sprintf(x, "MENU %d", menuItem);
// writeSerialPortDebug(boutRefNum, x);
break;
case mHelp:
switch ( menuItem ) {
case iQuickHelp:
itemHit = Alert(rAboutAlert, nil);
break;
case iUserGuide:
{
// AlertUser();
// write data to serial port
// Configure PCE/macplus to map serial port to ser_b.out. This port can then be used for debug output
// by using: tail -f ser_b.out
// // OSErr res = writeSerialPortDebug(boutRefNum, "Hello World");
// if (res < 0)
// AlertUser();
// http://www.mac.linux-m68k.org/devel/macalmanac.php
short* ROM85 = (short*) 0x028E;
short* SysVersion = (short*) 0x015A;
short* ScrVRes = (short*) 0x0102;
short* ScrHRes = (short*) 0x0104;
unsigned long* Time = (unsigned long*) 0x020C;
char str2[255];
sprintf(str2, "ROM85: %d - SysVersion: %d - VRes: %d - HRes: %d - Time: %lu", *ROM85, *SysVersion, *ScrVRes, *ScrHRes, *Time);
// // writeSerialPortDebug(boutRefNum, str2);
Boolean is128KROM = ((*ROM85) > 0);
Boolean hasSysEnvirons = false;
Boolean hasStripAddr = false;
Boolean hasSetDefaultStartup = false;
if (is128KROM)
{
UniversalProcPtr trapSysEnv = GetOSTrapAddress(_SysEnvirons);
UniversalProcPtr trapStripAddr = GetOSTrapAddress(_StripAddress);
UniversalProcPtr trapSetDefaultStartup = GetOSTrapAddress(_SetDefaultStartup);
UniversalProcPtr trapUnimpl = GetOSTrapAddress(_Unimplemented);
hasSysEnvirons = (trapSysEnv != trapUnimpl);
hasStripAddr = (trapStripAddr != trapUnimpl);
hasSetDefaultStartup = (trapSetDefaultStartup != trapUnimpl);
}
sprintf(str2, "is128KROM: %d - hasSysEnvirons: %d - hasStripAddr: %d - hasSetDefaultStartup - %d",
is128KROM, hasSysEnvirons, hasStripAddr, hasSetDefaultStartup);
// // writeSerialPortDebug(boutRefNum, str2);
break;
}
}
break;
}
HiliteMenu(0); /* unhighlight what MenuSelect (or MenuKey) hilited */
} /*DoMenuCommand*/
/* Close a window. This handles desk accessory and application windows. */
/* 1.01 - At this point, if there was a document associated with a
window, you could do any document saving processing if it is 'dirty'.
DoCloseWindow would return true if the window actually closed, i.e.,
the user didnÕt cancel from a save dialog. This result is handy when
the user quits an application, but then cancels the save of a document
associated with a window. */
Boolean DoCloseWindow(window)
WindowPtr window;
{
/* if ( IsDAWindow(window) )
CloseDeskAcc(((WindowPeek) window)->windowKind);
else */ if ( IsAppWindow(window) )
CloseWindow(window);
return true;
} /*DoCloseWindow*/
/* Clean up the application and exit. We close all of the windows so that
they can update their documents, if any. */
/* 1.01 - If we find out that a cancel has occurred, we won't exit to the
shell, but will return instead. */
void Terminate()
{
WindowPtr aWindow;
Boolean closed;
#ifdef PROFILING
PROFILE_COMPLETE();
#endif
closed = true;
do {
aWindow = FrontWindow(); /* get the current front window */
if (aWindow != nil)
closed = DoCloseWindow(aWindow); /* close this window */
}
while (closed && (aWindow != nil));
if (closed)
ExitToShell(); /* exit if no cancellation */
} /*Terminate*/
void Initialize()
{
Handle menuBar;
WindowPtr window;
EventRecord event;
short count;
gInBackground = false;
InitGraf((Ptr) &qd.thePort);
InitFonts();
InitWindows();
InitMenus();
TEInit();
InitDialogs(nil);
InitCursor();
for (count = 1; count <= 3; count++) {
EventAvail(everyEvent, &event);
}
window = (WindowPtr) NewPtr(sizeof(WindowRecord));
if ( window == nil ) {
AlertUser();
}
window = GetNewWindow(rWindow, (Ptr) window, (WindowPtr) -1);
SetPort(window);
menuBar = GetNewMBar(rMenuBar); /* read menus into menu bar */
if ( menuBar == nil ) {
AlertUser();
}
SetMenuBar(menuBar); /* install menus */
DisposeHandle(menuBar);
AppendResMenu(GetMenuHandle(mApple), 'DRVR'); /* add DA names to Apple menu */
DrawMenuBar();
} /*Initialize*/
Boolean IsAppWindow(window)
WindowPtr window;
{
short windowKind;
if ( window == nil ) {
return false;
} /* application windows have windowKinds = userKind (8) */
windowKind = ((WindowPeek) window)->windowKind;
return (windowKind = userKind);
} /*IsAppWindow*/
/* Check to see if a window belongs to a desk accessory. */
Boolean IsDAWindow(window)
WindowPtr window;
{
if ( window == nil ) {
return false;
}
/* DA windows have negative windowKinds */
return ((WindowPeek) window)->windowKind < 0;
} /*IsDAWindow*/
Boolean TrapAvailable(tNumber,tType)
short tNumber;
TrapType tType;
{
if ( ( tType == ToolTrap ) &&
( gMac.machineType > envMachUnknown ) &&
( gMac.machineType < envMacII ) ) { /* it's a 2048KE, Plus, or SE */
tNumber = tNumber & 0x03FF;
if ( tNumber > 0x01FF ) { /* which means the tool traps */
tNumber = _Unimplemented; /* only go to 0x01FF */
}
}
return NGetTrapAddress(tNumber, tType) != GetTrapAddress(_Unimplemented);
} /*TrapAvailable*/
void AlertUser() {
short itemHit;
SetCursor(&qd.arrow);
itemHit = Alert(rUserAlert, nil);
ExitToShell();
} /* AlertUser */
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