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244 lines
13 KiB
244 lines
13 KiB
14 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/extensions/activeqt/examples/qutlook/qutlook.doc:1 -->
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<title>In Sync with Outlook</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>In Sync with Outlook</h1>
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This example is a modified version of the standard
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<a href="addressbook-example.html">Qt addressbook</a> example.
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<p> It demonstrates the use of <a href="qaxobject.html">QAxObject</a> and querySubObject to instantiate and
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navigate the Outlook Object Model, and the use of the Qt property system to
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read and write values of items in the Outlook contact folder.
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<p>
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The modifications in the class declaration of the central widget are
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a forward declaration of the QAxObject class and the IDispatch interface,
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and a new <a href="qlistviewitem.html">QListViewItem</a> subclass <tt>ABListViewItem</tt> that implements a
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constructor and a destructor and has a member <tt>contact_item</tt> of type
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<a href="qaxobject.html">QAxObject</a>.
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<pre> class QAxObject;
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struct IDispatch;
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class ABListViewItem : public <a href="qlistviewitem.html">QListViewItem</a>
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{
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public:
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ABListViewItem( <a href="qlistview.html">QListView</a> *listview, QString firstName, QString lastName, QString address, QString eMail, QAxObject *contact );
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~ABListViewItem();
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<a href="qaxobject.html">QAxObject</a> *contactItem() const;
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private:
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<a href="qaxobject.html">QAxObject</a> *contact_item;
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};
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</pre>
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<p> The ABCentralWidget gets a destructor, a new protected function <tt>setupOutlook</tt>,
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a new protected slot <tt>updateOutlook</tt>, and also three members of type <a href="qaxobject.html">QAxObject</a>.
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<pre> void findEntries();
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void updateOutlook();
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protected:
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void setupTabWidget();
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void setupListView();
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void setupOutlook();
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<a href="qaxobject.html">QAxObject</a> *outlook, *outlookSession, *contactItems;
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<a href="qgridlayout.html">QGridLayout</a> *mainGrid;
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</pre>
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<p>
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The implementation of the ABListViewItem class is trivial:
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<pre> ABListViewItem::ABListViewItem( <a href="qlistview.html">QListView</a> *listview,
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<a href="qstring.html">QString</a> firstName,
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<a href="qstring.html">QString</a> lastName,
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<a href="qstring.html">QString</a> address,
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<a href="qstring.html">QString</a> eMail,
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<a href="qaxobject.html">QAxObject</a> *contact )
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: <a href="qlistviewitem.html">QListViewItem</a>( listview, firstName, lastName, address, eMail ), contact_item( contact )
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{
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}
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ABListViewItem::~ABListViewItem()
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{
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delete contact_item;
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}
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QAxObject *ABListViewItem::contactItem() const
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{
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return contact_item;
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}
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</pre>The ABCentralWidget constructor initializes the <a href="qaxobject.html">QAxObject</a> pointers to zero and
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calls the <tt>setupOutlook</tt> function. The ABCentralWidget destructor calls the
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Logoff method of the outlookSession object.
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<pre> ABCentralWidget::ABCentralWidget( <a href="qwidget.html">QWidget</a> *parent, const char *name )
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: <a href="qwidget.html">QWidget</a>( parent, name ), outlook( 0 ), outlookSession( 0 ), contactItems( 0 )
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{
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mainGrid = new <a href="qgridlayout.html">QGridLayout</a>( this, 2, 1, 5, 5 );
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setupTabWidget();
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setupListView();
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setupOutlook();
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<a name="x2722"></a> mainGrid-><a href="qgridlayout.html#setRowStretch">setRowStretch</a>( 0, 0 );
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mainGrid-><a href="qgridlayout.html#setRowStretch">setRowStretch</a>( 1, 1 );
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}
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ABCentralWidget::~ABCentralWidget()
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{
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if ( outlookSession )
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outlookSession->dynamicCall( "Logoff()" );
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}
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</pre>The <tt>setupOutlook</tt> implementation creates a QAxObject to wrap the
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Outlook.Application COM object.
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<pre> void ABCentralWidget::setupOutlook()
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{
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outlook = new <a href="qaxobject.html">QAxObject</a>( "Outlook.Application", this );
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</pre>The call to <tt>querySubObject</tt> returns a new <a href="qaxobject.html">QAxObject</a> wrapper around the
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"Session" object of the Outlook Object hierarchy. If the call fails for
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some reason setupOutlook returns, otherwise it calls the "Logon" method
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of the Session object.
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<pre> // Get a session object
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<a name="x2721"></a> outlookSession = outlook-><a href="qaxbase.html#querySubObject">querySubObject</a>( "Session" );
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if ( !outlookSession )
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return;
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// Login; doesn't hurt if you are already running and logged on...
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outlookSession->dynamicCall( "Logon()" );
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</pre>The following call to <tt>querySubObject</tt> returns a new QAxObject wrapper
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around the default folder for "contacts".
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<pre> // Get the default folder for contacts
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<a href="qaxobject.html">QAxObject</a> *defFolder = outlookSession->querySubObject( "GetDefaultFolder(OlDefaultFolders)", "olFolderContacts" );
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</pre><tt>querySubObject</tt> is then used again to get the list of all items in the
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folder. The <tt>connect</tt> statement connects the new ABCentralWidget slot
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to the signals provided by the "Items" COM object. Finally, it calls the
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<tt>updateOutlook</tt> function to populate the listview.
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<pre> // Get all items
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if ( defFolder ) {
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contactItems = defFolder-><a href="qaxbase.html#querySubObject">querySubObject</a>( "Items" );
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<a href="qobject.html#connect">connect</a>( contactItems, SIGNAL(ItemAdd(IDispatch*)), this, SLOT(updateOutlook()) );
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<a href="qobject.html#connect">connect</a>( contactItems, SIGNAL(ItemChange(IDispatch*)), this, SLOT(updateOutlook()) );
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<a href="qobject.html#connect">connect</a>( contactItems, SIGNAL(ItemRemove()), this, SLOT(updateOutlook()) );
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}
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updateOutlook();
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}
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</pre>
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<p> The implementation of the <tt>updateOutlook</tt> slot clears the listview, and uses
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<tt>querySubObject</tt> to iterate through the list of items. For every item provided a new
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ABListViewItem object is created and filled with the properties of the item
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object. The object returned by <tt>querySubObject</tt> is a child of the callee (ie. "contactItems"),
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but the list view item should take ownership to provide a cleaner relation between
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entries, so the item has to be removed from its parent object.
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<pre> void ABCentralWidget::updateOutlook()
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{
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<a name="x2725"></a> listView-><a href="qlistview.html#clear">clear</a>();
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if ( !contactItems )
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return;
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<a href="qaxobject.html">QAxObject</a> *item = contactItems->querySubObject( "GetFirst()" );
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while ( item ) {
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<a name="x2729"></a> <a href="qstring.html">QString</a> firstName = item-><a href="qobject.html#property">property</a>( "FirstName" ).toString();
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<a href="qstring.html">QString</a> lastName = item-><a href="qobject.html#property">property</a>( "LastName" ).toString();
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<a href="qstring.html">QString</a> address = item-><a href="qobject.html#property">property</a>( "HomeAddress" ).toString();
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<a href="qstring.html">QString</a> email = item-><a href="qobject.html#property">property</a>( "Email1Address" ).toString();
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(void)new ABListViewItem( listView, firstName, lastName, address, email, item );
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// the listviewitem takes ownership
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<a name="x2727"></a> item-><a href="qlistviewitem.html#parent">parent</a>()->removeChild( item );
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item = contactItems->querySubObject( "GetNext()" );
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}
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}
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</pre>
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<p> The <tt>addEntry</tt> implementation calls the CreateItem method of the Outlook.Application
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object to create a new contact item, and creates a new ABListViewItem if the call
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succeeds.
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<pre> void ABCentralWidget::addEntry()
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{
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<a name="x2724"></a> if ( !iFirstName-><a href="qlineedit.html#text">text</a>().isEmpty() || !iLastName-><a href="qlineedit.html#text">text</a>().isEmpty() ||
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!iAddress-><a href="qlineedit.html#text">text</a>().isEmpty() || !iEMail-><a href="qlineedit.html#text">text</a>().isEmpty() ) {
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<a href="qaxobject.html">QAxObject</a> *contactItem = outlook-><a href="qaxbase.html#querySubObject">querySubObject</a>( "CreateItem(OlItemType)", "olContactItem" );
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if ( contactItem ) {
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<a name="x2730"></a> contactItem-><a href="qobject.html#setProperty">setProperty</a>( "FirstName", iFirstName-><a href="qlineedit.html#text">text</a>() );
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contactItem-><a href="qobject.html#setProperty">setProperty</a>( "LastName", iLastName-><a href="qlineedit.html#text">text</a>() );
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contactItem-><a href="qobject.html#setProperty">setProperty</a>( "HomeAddress", iAddress-><a href="qlineedit.html#text">text</a>() );
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contactItem-><a href="qobject.html#setProperty">setProperty</a>( "Email1Address", iEMail-><a href="qlineedit.html#text">text</a>() );
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<a name="x2720"></a> contactItem-><a href="qaxbase.html#dynamicCall">dynamicCall</a>( "Save()" );
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new ABListViewItem( listView, iFirstName-><a href="qlineedit.html#text">text</a>(),
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iLastName-><a href="qlineedit.html#text">text</a>(), iAddress-><a href="qlineedit.html#text">text</a>(), iEMail-><a href="qlineedit.html#text">text</a>(), contactItem );
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}
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}
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<a name="x2723"></a> iFirstName-><a href="qlineedit.html#setText">setText</a>( "" );
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iLastName-><a href="qlineedit.html#setText">setText</a>( "" );
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iAddress-><a href="qlineedit.html#setText">setText</a>( "" );
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iEMail-><a href="qlineedit.html#setText">setText</a>( "" );
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}
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</pre>
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<p> The <tt>changeEntry</tt> implementation updates the values in the contact item of the current
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listview item as well as the values of the listview item itself.
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<pre> void ABCentralWidget::changeEntry()
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{
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<a name="x2726"></a> ABListViewItem *item = (ABListViewItem*)listView-><a href="qlistview.html#currentItem">currentItem</a>();
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if ( item &&
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( !iFirstName-><a href="qlineedit.html#text">text</a>().isEmpty() || !iLastName-><a href="qlineedit.html#text">text</a>().isEmpty() ||
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!iAddress-><a href="qlineedit.html#text">text</a>().isEmpty() || !iEMail-><a href="qlineedit.html#text">text</a>().isEmpty() ) ) {
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<a href="qaxobject.html">QAxObject</a> *contactItem = item->contactItem();
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contactItem-><a href="qobject.html#setProperty">setProperty</a>( "FirstName", iFirstName-><a href="qlineedit.html#text">text</a>() );
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contactItem-><a href="qobject.html#setProperty">setProperty</a>( "LastName", iLastName-><a href="qlineedit.html#text">text</a>() );
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contactItem-><a href="qobject.html#setProperty">setProperty</a>( "HomeAddress", iAddress-><a href="qlineedit.html#text">text</a>() );
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contactItem-><a href="qobject.html#setProperty">setProperty</a>( "Email1Address", iEMail-><a href="qlineedit.html#text">text</a>() );
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contactItem-><a href="qaxbase.html#dynamicCall">dynamicCall</a>( "Save()" );
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<a name="x2728"></a> item-><a href="qlistviewitem.html#setText">setText</a>( 0, iFirstName-><a href="qlineedit.html#text">text</a>() );
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item-><a href="qlistviewitem.html#setText">setText</a>( 1, iLastName-><a href="qlineedit.html#text">text</a>() );
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item-><a href="qlistviewitem.html#setText">setText</a>( 2, iAddress-><a href="qlineedit.html#text">text</a>() );
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item-><a href="qlistviewitem.html#setText">setText</a>( 3, iEMail-><a href="qlineedit.html#text">text</a>() );
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}
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}
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</pre>
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<p> To build the example you must first build the <a href="qaxcontainer.html">QAxContainer</a>
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library. Then run your make tool in <tt>examples/qutlook</tt> and run the resulting <tt>qutlok.exe</tt>.
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<p>See also <a href="qaxcontainer-examples.html">The QAxContainer Examples</a>.
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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