The gtkrc file cann't work on Windows platform?

["chunlong84" <chunlong84 gmail com>]

Below is my gtkrc file:

 

pixmap_path "test_gtkmm/icons/"

 

style "btn2" {
engine "pixmap"
{
image
{
function = BOX
recolorable = TRUE
state = NORMAL
stretch = TRUE
file = "btn2.png"
}
image
{
function = BOX
recolorable = TRUE
state = PRELIGHT
stretch = TRUE
file = "btn22.png"
}
image
{
function = BOX
recolorable = TRUE
state = ACTIVE
stretch = TRUE
file = "btn22.png"
}
}
}

widget "abc" style "btn2"

 MyWindow::MyWondow

{

 Gtk::RC::parse_string("test_gtkmm/gtkmmrc");

 btn2.set_size_request(100,100);
 btn2.set_name("abc");
}

 

It can't work,why?