SoEngine realTime create a realtime clock

/*-------------------------------------------------------------- * Global fields. * A digital clock is implemented by connecting the realTime * global field to a Text3 string. *------------------------------------------------------------*/ #include <Inventor/SoDB.h> #include <Inventor/Win/SoWin.h> #include <Inventor/Win/SoWinRenderArea.h> #include <Inventor/nodes/SoDirectionalLight.h> #include <Inventor/nodes/SoMaterial.h> #include <Inventor/nodes/SoPerspectiveCamera.h> #include <Inventor/nodes/SoSeparator.h> #include <Inventor/nodes/SoText3.h> int main(int, char **argv) { // Initialize Inventor and Win HWND myWindow = SoWin::init(argv[0]); if (myWindow == NULL) exit(1); SoSeparator *root = new SoSeparator; root->ref(); // Add a camera, light, and material SoPerspectiveCamera *myCamera = new SoPerspectiveCamera; root->addChild(myCamera); root->addChild(new SoDirectionalLight); SoMaterial *myMaterial = new SoMaterial; myMaterial->diffuseColor.setValue(1.0, 0.0, 0.0); root->addChild(myMaterial); // Create a Text3 object, and connect to the realTime field SoText3 *myText = new SoText3; root->addChild(myText); myText->string.connectFrom(SoDB::getGlobalField("realTime")); SoWinRenderArea *myRenderArea = new SoWinRenderArea(myWindow); SbViewportRegion vpr = myRenderArea->getViewportRegion(); myCamera->viewAll(root, vpr); myRenderArea->setSceneGraph(root); myRenderArea->setTitle("Date & Time"); myRenderArea->show(); SoWin::show(myWindow); SoWin::mainLoop(); return 0; }