[gtkmm] Re: [Win32] Retrieving the HINSTANCE and HWND from gtkmm2.

[Dirk Gerrits <dirk gerrits homeip net>]

Dirk Gerrits wrote:

> I have not yet been able to try out gtkmm2 (see my previous posts in the
> "Building libsigc++ under Win32 for use with Intel C++ Compiler 6.0"
> thread). However I'm getting closer every day because of all the help
> I'm getting. Thanks guys!
>
> Anyway, in the meantime I have been speculating over how to do certain
> things with gtkmm2. After some Googling and doc reading I came up with
> this to retrieve the HINSTANCE of the application and the HWND of a
> Gtk::Window called myWin:
>
> // Retrieve GdkWindow part of myWin.
> GdkWindow* gdkWinPtr = myWin.get_window()->gobj();
>
> // Retrieve Win32 application instance handle and window handle.
> HINSTANCE hInstance = static_cast<HINSTANCE>(GetModuleHandle(NULL));
> HWND hWnd = static_cast<HWND>(GDK_WINDOW_XWINDOW(gdkWinPtr));
>
> However, I have obviously not been able to test this. Is it correct?
>
> Kind regards,
> Dirk Gerrits


I have been able to try this now, thanks to some helpful mailinglist 
posters. However, it doesn't work: the macro GDK_WINDOW_XWINDOW is 
undefined. Doing some more research, I came up with this:

#include <gdk/gdkwin32.h>

// Retrieve GdkWindow part of myWin.
GdkWindow* gdkWinPtr = get_window()->gobj();

// Retrieve Win32 application instance handle and window handle.
HINSTANCE hInstance = static_cast<HINSTANCE>(GetModuleHandle(NULL));
HWND hWnd = static_cast<HWND>(GDK_WINDOW_HWND(gdkWinPtr));

This appears to work. Can anyone confirm this?

Dirk