Python Webkit GTK injecting special keys event

I am trying to dispatch (inject) a GTK keyboard event to some window, in specific the window with a webkit webview inside of it. Problem that I have is with special keys like Backspace, Up, Down etc. For some reason they are not injected properly, meaning that corresponding functionality is not trigger开发者_运维百科ed. For other keys it works perfectly. I tried to focus the keyboard on the window and put the window on the top of the window z-index stack, but it doesn't help.

GdkEvent* const event = gdk_event_new(GDK_KEY_PRESS); 
event->key.window = self->window->window; 
event->key.send_event = TRUE; 
event->key.time = GDK_CURRENT_TIME; 
event->key.state = 0; event->key.keyval = key_value; 
event->key.hardware_keycode = 0;
event->key.length = 0; event->key.string = 0; 
event->key.group = 0; 
//key_value is the code for the key. 

This is the C to Python binding part where I just pass a keycode (key_value) to the function. I do the similar thing for key release event (GDK_KEY_RELEASE). In Python part I call those two functions (press and then release) and it works for normal keys like for a, s, d, etc. However, it doesn't work for BackSpace, Enter, Delete etc.

I solved the problem by using the KeyMap object that I get with gtk.gdk.keymap_get_default(). KeyMap has method get_entries_for_keyval(keycode) to which you need to pass just the value of keycode. It returns a triple: hardware_code, group and level. So when I passed the hardware_code and group everything started to work, except arrow keys.