混合语言编程—C#使用原生的Directx和OpenGL绘图的方法

extern "C" _declspec(dllexport) HRESULT InitD3D( HWND hWnd );

extern "C" _declspec(dllexport) VOID Render();

HWND handle = this.button1.Handle;

InitD3D(handle);

private void Draw()

  {

         for (; ; )

            {

                Render();

            }

        }
 

extern "C" _declspec(dllexport) void Init( HWND hWnd);
extern "C" _declspec(dllexport) void Render();
void Init(HWND hWnd)
{
   int PixelFormat;
   int bits = 16;
   hDC = GetDC(hWnd);
   static  PIXELFORMATDESCRIPTOR pfd=           // pfd Tells Windows How We Want Things To Be
   {
      sizeof(PIXELFORMATDESCRIPTOR),              // Size Of This Pixel Format Descriptor
      1,                                                         　　 // Version Number
      PFD_DRAW_TO_WINDOW |                        // Format Must Support Window
      PFD_SUPPORT_OPENGL |                          // Format Must Support OpenGL
      PFD_DOUBLEBUFFER,                               // Must Support Double Buffering
      PFD_TYPE_RGBA,                                     // Request An RGBA Format
      bits,                                                        // Select Our Color Depth
      0, 0, 0, 0, 0, 0,                                       // Color Bits Ignored
      0,                                                         // No Alpha Buffer
      0,                                                         // Shift Bit Ignored
      0,                                                        // No Accumulation Buffer
      0, 0, 0, 0,                                           // Accumulation Bits Ignored
      16,                                                    // 16Bit Z-Buffer (Depth Buffer)
      0,                                                     // No Stencil Buffer
      0,                                                     // No Auxiliary Buffer
      PFD_MAIN_PLANE,                         // Main Drawing Layer
      0,                                                  // Reserved
      0, 0, 0                                          // Layer Masks Ignored
   };
   PixelFormat=ChoosePixelFormat(hDC,&pfd);
   SetPixelFormat(hDC,PixelFormat,&pfd);
   hRC=wglCreateContext(hDC);
}
void Render()
{
   wglMakeCurrent(hDC, hRC);
   draw();
   SwapBuffers(hDC);
   wglMakeCurrent(NULL, NULL);
}

Init(this.pictureBox1.Handle);
//开始绘制
var timer = new System.Timers.Timer();
timer.Interval = 100;
 timer.Elapsed += (tsender, te) =>
                {
                    Render();
                };
timer.AutoReset = true;
timer.Enabled = true;