Example #1
0
        // Context control event handlers
        protected virtual void GlInitialize(object sender, EventArgs e)
        {
            // Set up and declare contexts
            m_uint_HWND = (uint)this.Handle.ToInt32();
            m_uint_DC   = WGL.GetDC(m_uint_HWND);
            WGL.wglSwapBuffers(m_uint_DC);

            // Define pixel format
            WGL.PIXELFORMATDESCRIPTOR pfd = new WGL.PIXELFORMATDESCRIPTOR();
            WGL.ZeroPixelDescriptor(ref pfd);
            pfd.nVersion   = 1;
            pfd.dwFlags    = (WGL.PFD_DRAW_TO_WINDOW | WGL.PFD_SUPPORT_OPENGL | WGL.PFD_DOUBLEBUFFER);
            pfd.iPixelType = (byte)(WGL.PFD_TYPE_RGBA);
            pfd.cColorBits = 32;
            pfd.cDepthBits = 32;
            pfd.iLayerType = (byte)(WGL.PFD_MAIN_PLANE);
            int pixelFormatIndex = 0;

            pixelFormatIndex = WGL.ChoosePixelFormat(m_uint_DC, ref pfd);

            // Check and set pixel format
            if (pixelFormatIndex == 0)
            {
                MessageBox.Show("Unable to retrieve pixel format");
                return;
            }
            if (WGL.SetPixelFormat(m_uint_DC, pixelFormatIndex, ref pfd) == 0)
            {
                MessageBox.Show("Unable to set pixel format");
                return;
            }

            // Initialize rendering context
            m_uint_RC = WGL.wglCreateContext(m_uint_DC);
            if (m_uint_RC == 0)
            {
                MessageBox.Show("Unable to get rendering context");
                return;
            }
            if (WGL.wglMakeCurrent(m_uint_DC, m_uint_RC) == 0)
            {
                MessageBox.Show("Unable to make rendering context current");
                return;
            }

            // Initialize OpenGl view and properties
            GlResize(null, null);
            GL.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
            GL.glEnable(GL.GL_DEPTH_TEST);
            GL.glDepthFunc(GL.GL_LEQUAL);
            //GL.glEnable(GL.GL_CULL_FACE);
            GL.glCullFace(GL.GL_BACK);
        }
Example #2
0
        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
        {
            // Check for context handles
            if (m_uint_DC == 0 || m_uint_RC == 0)
            {
                return;
            }

            // Don't render anything with base context; just clear and flush
            GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
            GL.glLoadIdentity();
            GL.glFlush();
            WGL.wglSwapBuffers(m_uint_DC);
        }
Example #3
0
 // Overriden control behavior
 protected override void Dispose(bool disposing)
 {
     if (disposing)
     {
         if (m_uint_RC != 0)
         {
             WGL.wglDeleteContext(m_uint_RC);
             m_uint_RC = 0;
         }
         if (components != null)
         {
             components.Dispose();
         }
     }
     base.Dispose(disposing);
 }
Example #4
0
        protected virtual void GlResize(object sender, EventArgs e)
        {
            // Check for and refresh context handles
            if (m_uint_DC == 0 || m_uint_RC == 0)
            {
                return;
            }
            if (this.Width == 0 || this.Height == 0)
            {
                return;
            }
            WGL.wglMakeCurrent(m_uint_DC, m_uint_RC);

            // Reset view and model matrix stacks with new dimensions
            GL.glViewport(0, 0, this.Width, this.Height);
            GL.glMatrixMode(GL.GL_PROJECTION);
            GL.glLoadIdentity();
            GLU.gluPerspective(60.0, ((double)(this.Width) / (double)(this.Height)), 1.0, 1000.0);
            GL.glMatrixMode(GL.GL_MODELVIEW);
            GL.glLoadIdentity();
        }