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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="combobox-example-simple"></a>Simple Text Example</h2></div></div></div>
<div class="figure">
<a name="figure-combobox-text"></a><p class="title"><b>Figure 10.2. ComboBoxText</b></p>
<div class="figure-contents"><div class="screenshot"><div><img src="figures/combobox_text.png" alt="ComboBoxText"></div></div></div>
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<br class="figure-break"><p><a class="ulink" href="http://git.gnome.org/browse/gtkmm-documentation/tree/examples/book/combobox/text?h=gtkmm-3-24" target="_top">Source Code</a></p>
<p>File: <code class="filename">examplewindow.h</code> (For use with gtkmm 3, not gtkmm 2)
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<pre class="programlisting">
#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H
#include <gtkmm/window.h>
#include <gtkmm/comboboxtext.h>
class ExampleWindow : public Gtk::Window
{
public:
ExampleWindow();
virtual ~ExampleWindow();
protected:
//Signal handlers:
void on_combo_changed();
//Child widgets:
Gtk::ComboBoxText m_Combo;
};
#endif //GTKMM_EXAMPLEWINDOW_H
</pre>
<p>File: <code class="filename">main.cc</code> (For use with gtkmm 3, not gtkmm 2)
</p>
<pre class="programlisting">
#include "examplewindow.h"
#include <gtkmm/application.h>
int main(int argc, char *argv[])
{
auto app = Gtk::Application::create(argc, argv, "org.gtkmm.example");
ExampleWindow window;
//Shows the window and returns when it is closed.
return app->run(window);
}
</pre>
<p>File: <code class="filename">examplewindow.cc</code> (For use with gtkmm 3, not gtkmm 2)
</p>
<pre class="programlisting">
#include "examplewindow.h"
#include <iostream>
ExampleWindow::ExampleWindow()
{
set_title("ComboBoxText example");
//Fill the combo:
m_Combo.append("something");
m_Combo.append("something else");
m_Combo.append("something or other");
m_Combo.set_active(1);
add(m_Combo);
//Connect signal handler:
m_Combo.signal_changed().connect(sigc::mem_fun(*this,
&ExampleWindow::on_combo_changed) );
show_all_children();
}
ExampleWindow::~ExampleWindow()
{
}
void ExampleWindow::on_combo_changed()
{
Glib::ustring text = m_Combo.get_active_text();
if(!(text.empty()))
std::cout << "Combo changed: " << text << std::endl;
}
</pre>
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