problem of drawingarea in a dialog

[breadbread1984 <breadbread1984 163 com>]

I find that drawingarea in a dialog with button can emit response signal can't process its button_press, button_release and motion_notify signal. The following code can reproduce the problem.

//test.h///////////////////////////////////////////////////////////////
#ifndef TEST_H
#define TEST_H

#include <gtkmm.h>

using namespace Gtk;
using namespace Gdk;
using namespace Glib;
using namespace sigc;

class test : public Dialog {
protected:
    Button m_cancelbutton,m_okbutton;
    DrawingArea m_DrawingArea;

    virtual bool on_drawingarea_button_press_event(GdkEventButton * event);
    virtual bool on_drawingarea_button_release_event(GdkEventButton * event);

public:
    test();
    virtual ~test();
};

#endif

//test.cpp/////////////////////////////////////////////////////////////
#include <iostream>
#include "test.h"

using namespace std;

test::test()
:Dialog("test",false,true),
m_okbutton(StockID("gtk-ok")),
m_cancelbutton(StockID("gtk-cancel"))
{
    add_action_widget(m_cancelbutton,-6);
    add_action_widget(m_okbutton,-5);
    m_DrawingArea.set_size_request(320,240);
    get_vbox()->pack_start(m_DrawingArea);
    m_DrawingArea.signal_button_press_event().connect(mem_fun(*this,&test::on_button_press_event),false);
    m_DrawingArea.signal_button_release_event().connect(mem_fun(*this,&test::on_button_release_event),false);
    show_all();
}

test::~test()
{
}

bool test::on_drawingarea_button_press_event(GdkEventButton * event)
{
    cout<<"press"<<endl;
}

bool test::on_drawingarea_button_release_event(GdkEventButton * event)
{
    cout<<"release"<<endl;
}

//main.cpp////////////////////////////////////////////////////////////
#include <gtkmm.h>
#include "test.h"

int main(int argc,char* argv[])
{
    Main kit(argc,argv);
    test t;
    kit.run(t);
}

---

免费送你和爱人去新加坡过情人节！