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searchbox.cpp Example File
network/googlesuggest/searchbox.cpp

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 #include <QDesktopServices>
 #include <QUrl>

 #include "searchbox.h"
 #include "googlesuggest.h"

 #define GSEARCH_URL "http://www.google.com/search?q=%1"

 SearchBox::SearchBox(QWidget *parent): QLineEdit(parent)
 {
     completer = new GSuggestCompletion(this);

     connect(this, SIGNAL(returnPressed()),this, SLOT(doSearch()));

     setWindowTitle("Search with Google");

     adjustSize();
     resize(400, height());
     setFocus();
 }

 void SearchBox::doSearch()
 {
     completer->preventSuggest();
     QString url = QString(GSEARCH_URL).arg(text());
     QDesktopServices::openUrl(QUrl(url));
 }