I met a windows display error. Please help me.
I create two windows in glade file. one window is main window with menus. The
other (sub window) will be displayed after clicking a menu item. After clicking
the menu item, the window appear very shortly and disappeared. you can see a
window flashing one time on the screen.
The sub window header file is :
#include <gtkmm.h>
#include <iostream>
class GardenPresent
{
public:
GardenPresent(Gtk::Window& parent);
virtual ~GardenPresent();
Gtk::Window* get_window();
private:
Gtk::Window* wndGardenPresent;
int load_ui();
};
The sub window cc file is :
#include "GardenPresent.h"
GardenPresent::GardenPresent(Gtk::Window& parent)
{
load_ui();
wndGardenPresent->set_transient_for(parent);
}
GardenPresent::~GardenPresent()
{
delete wndGardenPresent;
}
Gtk::Window* GardenPresent::get_window()
{
return wndGardenPresent;
}
int GardenPresent::load_ui()
{
Glib::RefPtr<Gtk::Builder> refBuilder = Gtk::Builder::create();
refBuilder->add_from_file(mnuPresent_glade_file);
refBuilder->get_widget("wndGardenPresent", wndGardenPresent);
return 0;
}
The menu item signal handler is :
void gkass::on_mnuGardenPresent_activate()
{
GardenPresent GardenPresent1(*gkassWindow);
GardenPresent1.get_window()->show();
} //The window appears on show() and disappears after this handler end.
I try to use a gtk::dialog instead of gtk::window. The dialog can display
normally. So I think maybe gtkmm only allow one window exist in a program. Is
it right ?
Thanks
Wallace.
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