[osg-users] Intercepting Windows messages

[Trajce Nikolov NICK]

Hi Anders,

here is what I do for this on Windows

    while (!viewer->done())
    {

#if defined(_WIN32)
        MSG msg;
        if (::PeekMessage(&msg,NULL,0,0,PM_NOREMOVE))
        {
            ::GetMessage(&msg, NULL, 0, 0);

            if (wins.size())
            {
                osgViewer::GraphicsHandleWin32 *hdl =
dynamic_cast<osgViewer::GraphicsHandleWin32*>(wins.at(0));
                if(hdl)
                {
                    WNDPROC fWndProc =
(WNDPROC)::GetWindowLongPtr(hdl->getHWND(), GWLP_WNDPROC);
                    if (fWndProc && hdl->getHWND())
{
::CallWindowProc(fWndProc,hdl->getHWND(),msg.message, msg.wParam,
msg.lParam);
}
                }
            }
        }
#endif

On Wed, Nov 11, 2015 at 4:21 PM, Anders Backman <andersb at cs.umu.se> wrote:

> Hi.
>
> Trying the 3DConnexion SpaceNavigator with OSG. However I would like to
> stay away from VRPN and such dependencies...
>
> I was wondering how to best intercept Windows messages from the
> GraphicsWindowWin32 class.
>
> This class has a virtual method handleNativeWindowingEvent which I would
> like to override to catch custom messages from my device.
>
> Would it be possible to implement a derived class and have that
> instantiated instead of the standard osgViewer::GraphicsWindowWin32 one?
>
> Or is there a different method to listen to the  messages:
>
> ( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
>
> Thanks,
> Anders
>
>
>
> --
> __________________________________________
> Anders Backman, HPC2N
> 90187 Umeå University, Sweden
> anders at cs.umu.se http://www.hpc2n.umu.se
> Cell: +46-70-392 64 67
>
> _______________________________________________
> osg-users mailing list
> osg-users at lists.openscenegraph.org
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>
>


-- 
trajce nikolov nick
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