How to put Gtk:Grid in Gtk:Window with gtkmm

Question

How can I put Gtk:Grid in Gtk:Window using gtkmm. It says "no known conversion for argument 1 from «Gtk::Grid()» to «Gtk::Widget&»" when I'm trying to call main_win.add(grid); This works but it's too ugly:

...
int main (int argc, char *argv[])
{

Main kit(argc, argv);

Label label1("Hello1",0,0.5);
Label label2("Hello2",0,0.5);

Grid grid;

(*((Container*)&grid)).add(label1);
(*((Container*)&grid)).add(label2);

Window main_win(Gtk::WINDOW_TOPLEVEL);
main_win.add(*((Widget*)&grid));

main_win.show_all();

kit.run(main_win);

return 0;
}

Probably more useful to show us what doesn't work. Casting is rarely needed. — ergosys, Jul 18 '12 at 18:29

score 1 · Accepted Answer · answered Jul 19 '12 at 18:50

1

You don't need any of those crazy casts.

Grid grid
Window window;
window.add(grid)

will work just fine.

answered Jul 19 '12 at 18:50

murrayc

2,103
4
17
32

score 0 · Answer 2 · answered Jul 19 '12 at 07:16

0

Hm... Now it works... I think I did nothing... I'm not sure but it looks like Grid grid(); was in my source code because it causes the same error.

answered Jul 19 '12 at 07:16

user28667

1,073
10
9

1

This is an example of C++'s "most vexing parse", see http://stackoverflow.com/q/1424510/240633 – ergosys Jul 29 '12 at 21:31

How to put Gtk:Grid in Gtk:Window with gtkmm

2 Answers2