IntPtr WndEvents(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam)
{
switch (msg)
{
case USER32.WM_CREATE:
return(IntPtr.Zero);
case USER32.WM_ACTIVATEAPP:
this.wActive = (wParam != IntPtr.Zero);
return(IntPtr.Zero);
case USER32.WM_CLOSE:
USER32.DestroyWindow(this.wHandle);
return(IntPtr.Zero);
case USER32.WM_DESTROY:
OPENGL32.wglMakeCurrent(this.dcHandle, IntPtr.Zero);
OPENGL32.wglDeleteContext(this.wglContext);
USER32.PostQuitMessage(0);
return(IntPtr.Zero);
default:
return(USER32.DefWindowProc(hWnd, msg, wParam, lParam));
}
}
public void Run( )
{
USER32.MSG msg = new USER32.MSG( );
USER32.PeekMessage(out msg, this.hInstance, 0, 0, USER32.PM_NOREMOVE);
while (msg.message != USER32.WM_QUIT)
{
if (USER32.PeekMessage(out msg, this.hInstance, 0, 0, USER32.PM_REMOVE))
{
USER32.TranslateMessage(ref msg);
USER32.DispatchMessage(ref msg);
}
else
{
if (this.canUpdate)
{
this.elapsedTime = ( float )((this.oldTime - this.newTime) / ( float )this.ticksPerSecond);
this.Update(this.elapsedTime);
this.canUpdate = false;
}
KERNEL32.QueryPerformanceCounter(ref newTime);
if (this.newTime > this.oldTime)
{
OPENGL32.glClearColor(0, 0, 0, 0);
OPENGL32.glClear(OPENGL32.GL_COLOR_BUFFER_BIT | OPENGL32.GL_DEPTH_BUFFER_BIT);
OPENGL32.glLoadIdentity( );
this.Draw( );
OPENGL32.glFlush( );
GDI32.SwapBuffers(this.dcHandle);
this.oldTime += this.ticksPerFrame;
if (this.oldTime < this.newTime)
{
this.oldTime = (this.newTime + this.ticksPerFrame);
}
this.canUpdate = true;
}
}
}
}
public void InitializeOpenGL( )
{
this.dcHandle = USER32.GetDC(this.wHandle);
GDI32.PIXELFORMATDESCRIPTOR pfd = new GDI32.PIXELFORMATDESCRIPTOR( );
pfd.nSize = ( ushort )Marshal.SizeOf(pfd);
pfd.nVersion = 1;
pfd.dwFlags = (OPENGL32.PFD_DRAW_TO_WINDOW | OPENGL32.PFD_SUPPORT_OPENGL | OPENGL32.PFD_DOUBLEBUFFER);
pfd.iPixelType = OPENGL32.PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cDepthBits = 16;
pfd.cStencilBits = 8;
pfd.iLayerType = OPENGL32.PFD_MAIN_PLANE;
int pixelFormat = GDI32.ChoosePixelFormat(this.dcHandle, pfd);
GDI32.SetPixelFormat(this.dcHandle, pixelFormat, pfd);
this.wglContext = OPENGL32.wglCreateContext(this.dcHandle);
OPENGL32.wglMakeCurrent(this.dcHandle, this.wglContext);
this.Initialize( );
}
