OpenGL programming based on MFC Part 6 keyboard and Mouse control

Add an event handler for the keyboard and mouse, based on the previous article, to control the rotation and movement of 3D objects.

1, the event handler is added first in the Ccy457openglview class for Wm_keydown, Wm_lbuttondown, Wm_lbuttonup, and wm_mousemove four events.

2, add the following variables for controlling rotation and movement in CCY457OpenGLView.h:

GLfloat m_xAngle;
GLfloat m_yAngle;
GLfloat m_xPos;
GLfloat m_yPos;
CPoint m_MouseDownPoint;

and initialize it in the constructor:

CCY457OpenGLView::CCY457OpenGLView()
{
　　m_xPos = 0.0f;
　　m_yPos = 0.0f;
　　m_xAngle = 0.0f;
　　m_yAngle = 0.0f;
}

3, add the drawing code:

void COpenGLView::RenderScene ()
{
　　glLoadIdentity();
　　glTranslatef(m_xPos, m_yPos, -5.0f);
　　glRotatef(m_xAngle, 1.0f,0.0f,0.0f);
　　glRotatef(m_yAngle, 0.0f,1.0f,0.0f);

　　glutWireCube(1.0f);
}