Errata

The code samples referenced for download are incomplete.

The file moon.rsrc contains no data i.e their is no image when moon.rsrc is
added to the project and the main.nib file is opened in InterfaceBuilder AND
the project fails to cimpile with a (-39) ResMerge error if moon.rsrc is in
the project.

It's not perfectly clear from the text nor from the Figures that
you're adding a text control field instead of a Static Text field.
Since the field is not meant to be edited, I assumed the Static Text
field type.

There's a serious omission: The text <key, item> pair description
must end with a semicolon.
Example:
{ "Facts" = "The moon is not made of green cheese"; }

This bug took quite a while to find.
I'm using OS 10.2 and got the following error messgage:

2002-08-31 13:10:31.757 Moon Travel Planner[1012] CFLog (0):
CFPropertyListCreateFromXMLData(): Old-style plist parser: missing
semicolon in dictionary.
2002-08-31 13:10:31.781 Moon Travel Planner[1012] CFLog (0):
CFPropertyListCreateFromXMLData(): The file name for this data might
be (or it might not): file://localhost/usr/share/zoneinfo/US/Pacific

Is this an old omission or a change brought about by OS 10.2?
There is no semicolon in the example file "Localizable.strings"
that I downloaded from your website the other day.

The WEB based examples for Chapters 11 and 12 will not compile because of an error:
Linking /USERS/dietrich/.......etc

can't open /Network/Servers/riemann/homes/aragon/laden/OReilly/Folder/Chapter11
... or something like that. Last Chapter 13 works, so one can use it to check the
operations and code.

Building a skeletal application. Upon using the Dec. 2002 Dev. Tools
(I dont know if the tools are the problem), When choosing the options
that are told to be selected and I press build i get the following:

Building target "Moon Travel Planner" with build style "Development"
(optimization:level '0', debug-symbols:on) - (3 errors)
Missing file or directory: Moon
Missing file or directory: Travel
Missing file or directory: Planner_Prefix.h

This is classified as a a series mistake because I have not been able
to use this book that I have purchased because the program wont let me
continue.

The behaviour of XCode has changed, so that before we add the PICT resource to the
project (on page 71) we need to add a "New Build ResourceManager Resources Build
Phase" using the "Project Menu" -> "New Build Phase". A convenient place to do this
is while setting up the project on page 47.

If you don't do this, you get no errors, but the PICT resource will not display.
A more detailed description may be found here:
http://www.carbondev.com/site/?page=Interface+Builder+Images

Apple has done some changes it's developer software. There's two extra steps to add a resource file. This applies at least to Xcode 2.5 on Mac OS X 5.4.

6. Add a Build Resource Manager Resources build phase to your target.
7. Add your resource files to the Build Resource Manager Resources build phase.

Then it will work and the image will show up.

I've followed this example, used your example unmodified and it simply does NOT run the interface in Interface Builder using the 10.1 developer tools.

This occurs ONLY after adding the PICT resource.
Prior to adding the resource Interface Builder will run the interface in test mode, but after adding the pict resource it does not.

Apple has done some changes it's developer software. There's two extra steps to add a resource file. This applies at least to Xcode 2.5 on Mac OS X 5.4.

6. Add a Build Resource Manager Resources build phase to your target.
7. Add your resource files to the Build Resource Manager Resources build phase.

Then it will work and the image will show up.

After going through Chapter 9: Printing, the Page Setup and Print dialogs don't
work when compiled with Project Builder 1.1.1 and run on Mac OS X 10.1.2. The
examples when downloaded directly from the official site have the same problem.

When saving an itinerary and reopening it with the Moon Travel Planner application,
the file is only half the length it should be.

The call to FSWriteFork (commented //7) on p246 is the cause of this bug:

'length' is initialised with the number of UniCode characters in 'theString'.
'buffer' is a pointer to a buffer of length*2, as UniCode characters each require two
bytes of storage, so the buffer is big enough to store the whole text.

The call to CFStringGetCharacters copies all the text into 'buffer', as the 'length'
field here is a character counter.

The call to FSWriteFork uses length as a byte count, when in fact it's a UniCode
character count; changing the line to read:

err = FSWriteFork(forkRefNum, fsFromStart, 0, length * sizeof(UniChar), (void *)
buffer, NULL);

fixes the problem.

Multiple errors: Compilation type.....

1) TAB_SIGNATURE must be defined as: #define TAB_SIGNATURE 'MTPP';
in the global #define definitions

2) The definition < WindowRef MyWindow; > must be placed in the global definition
region in main. At the same time in main, the precoded references to a window must
be changed to MyWindow otherwise the compilation will fail upon unsatisfied
reference.

3) in main, added to the definitions at the start of main in Example 14-6, one must
add ControlRef tabControl;

4) The line of 14-6 eventTypeSpec =... for which an verified error is admitted is in
additionally incorrect because it should start EventTypeSpec =. There is no typedef
eventTypeSpec.

5) The EventTypeSpec = .. line needs to be moved up before the
controlID.signature=TAB_SIGNATURE declaration, otherwise a large number of not very
meaningful compiler errors are generated.

Operation Errors:
After the preceding changes are made, the program still does not work properly though
it compiles. I added to the Travel Time pane the nib file material for the Moon
Travel Planner, but did not add the code for Moon Travel Panner. Though I did not do
it, the size of the main window needs to be increased, so that the pane is big enough
to hold the Moon Travel Planner. When executed, the two tab window comes up with the
MoonTravelPane on top, as desired, and the pressing the present pane's tab does
nothing (as desired), while pressing the other tab switches the foremost pane (again
as desired). BUT... there are two problems

1) When the view is switched to the Itinerary pane, the Compute Travel Time button
remains in view. This can be eliminated if this button is desginated as an ordinary
button, not the pulsing target in the nib file specifications.

2) When one attempts to switch back from the Itinerary tab to the Travel Time tab,
none of the Travel Time graphic items appear-- the pane is blank. When trying to
switch from tab to another, while the tab is held down (ie the mouse button is held
down with the cursor over the tab), the Moon Travel graphics are totally visible, but
disappear as soon as the mouse is released. This is true no matter which way the
switching goes. There is a serious bug here.