使用OpenGL，没有加载一些glut等包，居然真的画出来了。
首先创建工程，其步骤如下：
1）创建一个Win32 Console Application。
2）创建一个空的。转载了http://blog.sina.com.cn/s/blog_9579544301016wvp.html
复制代码如下：
#pragma comment(lib, "opengl32.lib") #pragma comment(lib, "glu32.lib") #include <windows.h> // C RunTime Header Files #include <stdlib.h> #include <malloc.h> #include <memory.h> #include <tchar.h> #include <gl/GL.h> #include <gl/GLU.h> HWND hWnd; HDC hDC; HGLRC hRC; void Game_Init(); void Game_Main(); void Game_ShutDown(); // Set up pixel format for graphics initialization void SetupPixelFormat() { PIXELFORMATDESCRIPTOR pfd, *ppfd; int pixelformat; ppfd = &pfd; ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR); ppfd->nVersion = 1; ppfd->dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER; ppfd->dwLayerMask = PFD_MAIN_PLANE; ppfd->iPixelType = PFD_TYPE_COLORINDEX; ppfd->cColorBits = 16; ppfd->cDepthBits = 16; ppfd->cAccumBits = 0; ppfd->cStencilBits = 0; pixelformat = ChoosePixelFormat(hDC, ppfd); SetPixelFormat(hDC, pixelformat, ppfd); } // Initialize OpenGL graphics void InitGraphics() { hDC = GetDC(hWnd); SetupPixelFormat(); hRC = wglCreateContext(hDC); wglMakeCurrent(hDC, hRC); glClearColor(0, 0, 0, 0.5); glClearDepth(1.0); glEnable(GL_DEPTH_TEST); } // Resize graphics to fit window void ResizeGraphics() { // Get new window size RECT rect; int width, height; GLfloat aspect; GetClientRect(hWnd, &rect); width = rect.right; height = rect.bottom; aspect = (GLfloat)width / height; // Adjust graphics to window size glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0, aspect, 1.0, 100.0); glMatrixMode(GL_MODELVIEW); } // Draw frame void DrawGraphics() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Set location in front of camera glLoadIdentity(); glTranslated(0, 0, -10); // Draw a square glBegin(GL_QUADS); glColor3d(1, 0, 0); glVertex3d(-2, 2, 0); glVertex3d(2, 2, 0); glVertex3d(2, -2, 0); glVertex3d(-2, -2, 0); glEnd(); // Show the new scene SwapBuffers(hDC); } // Handle window events and messages LONG WINAPI MainWndProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_SIZE: ResizeGraphics(); break; case WM_CLOSE: DestroyWindow(hWnd); break; case WM_DESTROY: PostQuitMessage(0); break; // Default event handler default: return DefWindowProc (hWnd, uMsg, wParam, lParam); break; } return 1; } int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { const LPCWSTR appname = TEXT("OpenGL Sample"); WNDCLASS wndclass; MSG msg; // Define the window class wndclass.style = 0; wndclass.lpfnWndProc = (WNDPROC)MainWndProc; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; wndclass.hInstance = hInstance; wndclass.hIcon = LoadIcon(hInstance, appname); wndclass.hCursor = LoadCursor(NULL,IDC_ARROW); wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wndclass.lpszMenuName = appname; wndclass.lpszClassName = appname; // Register the window class if (!RegisterClass(&wndclass)) return FALSE; // Create the window hWnd = CreateWindow( appname, appname, WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, CW_USEDEFAULT, CW_USEDEFAULT,CW_USEDEFAULT ,CW_USEDEFAULT , NULL, NULL, hInstance, NULL); if (!hWnd) return FALSE; // Initialize OpenGL InitGraphics(); // Display the window ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); // Event loop while (1) { if (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) == TRUE) { if (!GetMessage(&msg, NULL, 0, 0)) return TRUE; TranslateMessage(&msg); DispatchMessage(&msg); } DrawGraphics(); } wglDeleteContext(hRC); ReleaseDC(hWnd, hDC); }
直接运行会报错error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup
纠错方法：
找到Project -> properties -> Linker -> System ->subSystem 选择Windows (/SUBSYSTEM:WINDOWS)。
3）编译 -> 运行
4）ok
