Hello everybody,
Im desperately trying to embed OpenSG in SystemWindowsForms Application.
I subclassed a UserControl like this:
OpenSGControl::OpenSGControl()
{
this->Dock = System::Windows::Forms::DockStyle::Fill;
this->BackColor = System::Drawing::Color::White;
timer1 = gcnew System::Windows::Forms::Timer();
timer1->Interval = 500;
timer1->Enabled = true;
timer1->Tick += gcnew System::EventHandler(this,
&OpenSGControl::timer1_Tick);
osg::osgInit(0,NULL);
osg::WIN32WindowPtr win = osg::WIN32Window::create();
HWND hwnd = (HWND)this->Handle.ToPointer();
win->setHwnd(hwnd);
hdc = GetDC(hwnd);
int iPixelFormat;
PIXELFORMATDESCRIPTOR pfd;
memset(&pfd, 0, sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL |
PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.iLayerType = PFD_MAIN_PLANE;
pfd.cDepthBits = 16;
iPixelFormat = ChoosePixelFormat(GetDC(hwnd), &pfd);
SetPixelFormat(GetDC(hwnd), iPixelFormat, &pfd);
this->mgr = new osg::SimpleSceneManager();
mgr->setWindow(win);
win->init();
//win->deactivate();
osg::NodePtr scene;
scene = osg::makeTorus(.5,3,16,16);
this->mgr->setRoot(scene);
this->mgr->showAll();
}
In the timer1_tick And the OnPaintMethod, i have overridden I call
mgr->Redraw;
My Form is black if i call redraw. It is white other wise. Thats how it
is expected.
(So I think it must be alreday embedded correctly, because I guess the
screen-blacking is alreday done with opengl-calls coming form opensg)
But theres no torus. Why cant I see the torus?
I tried it also with the PassiveWindow, where I created my own
glcontexts.
(Similar to the PassiveWindow/QT Example)
I could see things painted with normal gl-Functions. But as soon as I
activated my mgr->redraw(); - line the window is only black. :-(
Wheres the error here?
Greetings and thx in advance
Hagen
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