Hi,
I'm trying to do a program which includes an opengl widget on the left and a tree on the right. So when the user selects the object from the tree, The object in the left shhould be highlighted or change color or smth else u offer me to do which is easier.
I thought that changing its color would be the easiest one. But I didnot managed to succeed it.
It seems correct. I don't understand where is the mistake.
Here is my code:
Qt Code: 
  1. void GLWidget::initializeGL()
  2. {
  3.     qglClearColor(trolltechPurple.dark());
  4.     object = makeObject();
  5.     glShadeModel(GL_FLAT);
  6.     glEnable(GL_DEPTH_TEST);
  7.     glEnable(GL_CULL_FACE);
  8. }
  9.  
  10. void GLWidget::paintGL()
  11. {
  12.     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  13.     glLoadIdentity();
  14.     glTranslated(0.0, 0.0, -10.0);
  15.     glRotated(xRot / 16.0, 1.0, 0.0, 0.0);
  16.     glRotated(yRot / 16.0, 0.0, 1.0, 0.0);
  17.     glRotated(zRot / 16.0, 0.0, 0.0, 1.0);
  18.     glCallList(object);
  19. }
  20.  
  21. void GLWidget::resizeGL(int width, int height)
  22. {
  23.     int side = qMin(width, height);
  24.     glViewport((width - side) / 2, (height - side) / 2, side, side);
  25.  
  26.     glMatrixMode(GL_PROJECTION);
  27.     glLoadIdentity();
  28.     glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0);
  29.     glMatrixMode(GL_MODELVIEW);
  30. }
  31. void GLWidget::setHighlighted(){
  32. 	Purple = QColor::fromCmykF(0.25, 0.25, 0.20, 0.0);
  33. 	qglColor(Purple);
  34. 	//paintGL();
  35. 	//,nitializeGL();
  36. 	updateGL();
  37.  
  38. }
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