{
FormPtr form; // CH.7 A form structure pointer

// CH.7 Get our form pointer
form = FrmGetActiveForm();

// CH.7 Parse events
switch( event->eType )
{
// CH.7 Form open event
case frmOpenEvent:
{
// CH.7 Draw the form
FrmDrawForm( form );

// CH.7 Build the list
buildList();
}
break;

// CH.7 Form close event
case frmCloseEvent:
{
// CH.7 Unlock and free things here
MemHandleUnlock( hpchoices );
MemHandleFree( hpchoices );
MemHandleUnlock( hchoices );
MemHandleFree( hchoices );
hchoices = 0;
}
break;

// CH.7 Respond to a list selection
case lstSelectEvent:
{
// CH.7 Set the database cursor to the selected contact
cursor = event->data.lstSelect.selection;

// CH.7 Go to contact details
FrmGotoForm( ContactDetailForm );
}
break;

// CH.7 Respond to a menu event
case menuEvent:
return( menuEventHandler( event ) );

// CH.7 Respond to the popup trigger
case popSelectEvent:
{
// CH.7 If there is no change, we're done
if( sortBy == event->data.popSelect.selection )
return( true );

// CH.7 Modify sort order variable
sortBy = event->data.popSelect.selection;

// CH.7 Sort the contact database by the new criteria
DmQuickSort( contactsDB, (DmComparF*)sortFunc, sortBy );

// CH.7 Rebuild the list
buildList();
}
break;

} // CH.7 End of the event switch statement

// CH.7 We're done
return( false );
}

// CH.3 Handle menu events
Boolean menuEventHandler( EventPtr event )
{
FormPtr form; // CH.3 A pointer to our form structure
Word index; // CH.3 A general purpose control index
FieldPtr field; // CH.3 Used for manipulating fields

// CH.3 Get our form pointer
form = FrmGetActiveForm();

// CH.3 Erase the menu status from the display
MenuEraseStatus( NULL );

// CH.4 Handle options menu
if( event->data.menu.itemID == OptionsAboutContacts )
{
// CH.4 Pop up the About form as a Dialog
FrmPopupForm( AboutForm );
return( true );
}

// CH.3 Handle graffiti help
if( event->data.menu.itemID == EditGraffitiHelp )
{
// CH.3 Pop up the graffiti reference based on
// the graffiti state
SysGraffitiReferenceDialog( referenceDefault );
return( true );
}

// CH.3 Get the index of our field
index = FrmGetFocus( form );

// CH.3 If there is no field selected, we're done
if( index == noFocus )
return( false );

// CH.3 Get the pointer of our field
field = FrmGetObjectPtr( form, index );

// CH.3 Do the edit command
switch( event->data.menu.itemID )
{
// CH.3 Undo
case EditUnd
FldUndo( field );
break;

// CH.3 Cut
case EditCut:
FldCut( field );
break;

// CH.3 Copy
case EditCopy:
FldCopy( field );
break;

// CH.3 Paste
case EditPaste:
FldPaste( field );
break;

// CH.3 Select All
case EditSelectAll:
{
// CH.3 Get the length of the string in the field
Word length = FldGetTextLength( field );

// CH.3 Sound an error if appropriate
if( length == 0 )
{
SndPlaySystemSound( sndError );
return( false );
}

// CH.3 Select the whole string
FldSetSelection( field, 0, length );
}
break;

// CH.3 Bring up the keyboard tool
case EditKeyboard:
SysKeyboardDialogV10();
break;
}

// CH.3 We're done
return( true );
}

// CH.5 This function creates and initializes a new record
static void newRecord( void )
{
VoidPtr precord; // CH.5 Pointer to the record

// CH.7 Create the database record and get a handle to it
if( (hrecord = DmNewRecord( contactsDB, &cursor,
DB_RECORD_SIZE )) == NULL )
errorExit( MemoryErrorAlert );

// CH.5 Lock down the record to modify it
precord = MemHandleLock( hrecord );

// CH.5 Clear the record
DmSet( precord, 0, DB_RECORD_SIZE, 0 );

// CH.6 Initialize the date and time
MemSet( &dateTime, sizeof( dateTime ), 0 );
dateTime.year = NO_DATE;
dateTime.hour = NO_TIME;
DmWrite( precord, DB_DATE_TIME_START, &dateTime,
sizeof( DateTimeType ) );

// CH.5 Unlock the record
MemHandleUnlock( hrecord );

// CH.5 Clear the busy bit and set the dirty bit
DmReleaseRecord( contactsDB, cursor, true );

// CH.5 Increment the total record count
numRecords++;

// CH.5 Set the dirty bit
isDirty = true;

// CH.5 We're done
return;
}

// CH.5 A time saver: Gets object pointers based on their ID
static VoidPtr getObject( FormPtr form, Word objectID )
{
Word index; // CH.5 The object index

// CH.5 Get the index
index = FrmGetObjectIndex( form, objectID );

// CH.5 Return the pointer
return( FrmGetObjectPtr( form, index ) );
}

// CH.5 Gets the current database record and displays it
// in the detail fields
static void setFields( void )
{
FormPtr form; // CH.5 The contact detail form
CharPtr precord; // CH.5 A record pointer
Word index; // CH.5 The object index

// CH.5 Get the contact detail form pointer
form = FrmGetActiveForm();

// CH.5 Get the current record
hrecord = DmQueryRecord( contactsDB, cursor );

// CH.6 Initialize the date and time variable
precord = MemHandleLock( hrecord );
MemMove( &dateTime, precord + DB_DATE_TIME_START,
sizeof( dateTime ) );

// CH.6 Initialize the date control
setDateTrigger();

// CH.6 Initialize the time control
setTimeTrigger