Initialize.c

/*
    File:       Initialize.c
 
    Contains:   Initialization code for this application
 
    Written by: Chris White 
 
    Copyright:  Copyright © 1996-1999 by Apple Computer, Inc., All Rights Reserved.
 
                You may incorporate this Apple sample source code into your program(s) without
                restriction. This Apple sample source code has been provided "AS IS" and the
                responsibility for its operation is yours. You are not permitted to redistribute
                this Apple sample source code as "Apple sample source code" after having made
                changes. If you're going to re-distribute the source, we require that you make
                it clear in the source that the code was descended from Apple sample source
                code, but that you've made changes.
 
    Change History (most recent first):
                8/10/1999   Karl Groethe    Updated for Metrowerks Codewarror Pro 2.1
                
 
*/
 
 
#pragma segment Initialize
 
 
 
// System includes
#include <Resources.h>
#include <Processes.h>
 
#ifndef __QUICKDRAW__
    #include <Quickdraw.h>
#endif
 
#ifndef __FONTS__
    #include <Fonts.h>
#endif
 
#ifndef __TEXTEDIT__
    #include <TextEdit.h>
#endif
 
#ifndef __DIALOGS__
    #include <Dialogs.h>
#endif
 
#ifndef __GESTALT__
    #include <Gestalt.h>
#endif
 
#ifndef __SEGLOAD__
    #include <SegLoad.h>
#endif
 
#ifndef __CODEFRAGMENTS__
    #include <CodeFragments.h>
#endif
 
#ifndef __THREADS__
    #include <Threads.h>
#endif
 
 
 
 
// Application includes
 
#ifndef __BAREBONES__
    #include "BareBones.h"
#endif
 
#ifndef __PROTOTYPES__
    #include "Prototypes.h"
#endif
 
 
 
// static prototypes
static Boolean CheckConfiguration ( void );
 
 
 
 
void InitToolbox ( void )
{   
    
    InitGraf ( &qd.thePort );
    InitFonts ( );
    InitWindows ( );
    InitMenus ( );
    TEInit ( );
    InitDialogs ( nil );
    InitCursor ( );
    
    FlushEvents ( everyEvent, 0 );
    
    return;
}
 
 
 
void InitApplication ( void )
{
    SetMenuBar ( GetNewMBar ( kMenuBarID ) );
    AppendResMenu ( GetMenuHandle ( kAppleMenu ), 'DRVR' );
    DrawMenuBar ( );
    
    if ( !CheckConfiguration ( ) )
    {
        AlertUser ( kNeedSystem7, 0, nil );
        ExitToShell ( );
    }
    
    gQuit = false;                      // Initialize flag that controls main event loop
    gSleepTime = kSleepTime;
    
    InstallAppleEventHandlers ( );
    
    AdjustMenus ( );
    
    // Create any RoutineDescriptors we may need
    gOutlineUserItemUPP = NewUserItemProc ( OutlineUserItem );
    
    return;
}
 
 
 
//
// Verify that we can run on the current configuration
//
static Boolean CheckConfiguration ( void )
{
    SInt32      theResult;
    OSErr       theErr;
    Boolean     bHasAppleEvents;
    
    
    
    // We require AppleEvent Manager
    theErr = Gestalt ( gestaltAppleEventsAttr, &theResult );
    bHasAppleEvents = (theErr == noErr && (theResult & (1L << gestaltAppleEventsPresent)));
    
    // We would like the Thread Manager
    theErr = Gestalt ( gestaltThreadMgrAttr, &theResult );
    gHasThreadManager = (theErr == noErr && (theResult & (1L << gestaltThreadMgrPresent)));
    
    // It isn't enough to use Gestalt because we may not have successfully linked
    // to the shared library. So, we also need to test one of the symbols from the
    // library against kUnresolvedSymbol to make sure we have a valid connection
    // to it. Things like memory limitations or someone having a library open with
    // write permission could cause it to fail.
    
#if GENERATINGCFM
    if ( gHasThreadManager )
        gHasThreadManager = (NewThread != (void*) kUnresolvedCFragSymbolAddress);
#endif
    
    
    return bHasAppleEvents;
}