1 #include <atlbase.h>
2 #include <atlwin.h>
3 #include <gl/glew.h>
4 #include <gl/GL.h>
5 #pragma comment(lib, "opengl32.lib")
6 extern CComModule _Module;
7
8 CComModule _Module;
9
10 class MyWindow : public CWindowImpl<MyWindow, CWindow, CFrameWinTraits>
11 {
12 public:
13 MyWindow()
14 : m_hDC(0)
15 , m_hGLRC(0)
16 {
17 Create(NULL, rcDefault);
18 }
19 public:
20 DECLARE_WND_CLASS(_T("MyWindow"));
21 BEGIN_MSG_MAP(MyWindow)
22 MESSAGE_HANDLER(WM_CREATE, OnCreate)
23 MESSAGE_HANDLER(WM_SIZE, OnSize)
24 MESSAGE_HANDLER(WM_PAINT, OnPaint)
25 MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBkgnd)
26 MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
27 END_MSG_MAP()
28 public:
29 LRESULT OnCreate(UINT msg, WPARAM wParam, LPARAM lParam, BOOL & bHandled)
30 {
31 m_hDC = GetDC();
32
33 PIXELFORMATDESCRIPTOR pfd = {
34 sizeof(PIXELFORMATDESCRIPTOR), /* size */
35 1, /* version */
36 PFD_SUPPORT_OPENGL |
37 PFD_DRAW_TO_WINDOW |
38 PFD_DOUBLEBUFFER, /* support double-buffering */
39 PFD_TYPE_RGBA, /* color type */
40 16, /* prefered color depth */
41 0, 0, 0, 0, 0, 0, /* color bits (ignored) */
42 0, /* no alpha buffer */
43 0, /* alpha bits (ignored) */
44 0, /* no accumulation buffer */
45 0, 0, 0, 0, /* accum bits (ignored) */
46 16, /* depth buffer */
47 0, /* no stencil buffer */
48 0, /* no auxiliary buffers */
49 PFD_MAIN_PLANE, /* main layer */
50 0, /* reserved */
51 0, 0, 0, /* no layer, visible, damage masks */
52 };
53 int pixelFormat = ChoosePixelFormat(m_hDC, &pfd);
54 SetPixelFormat(m_hDC, pixelFormat, &pfd);
55 m_hGLRC = wglCreateContext(m_hDC);
56 if (!m_hGLRC)
57 {
58 PostQuitMessage(0);
59 }
60 wglMakeCurrent(m_hDC, m_hGLRC);
61 glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
62 return true;
63 }
64
65 LRESULT OnSize(UINT msg, WPARAM wParam, LPARAM lParam, BOOL & bHandled)
66 {
67 return true;
68 }
69
70 LRESULT OnPaint(UINT msg, WPARAM wParam, LPARAM lParam, BOOL & bHandled)
71 {
72 if (m_hGLRC)
73 {
74 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
75 }
76 if (m_hDC)
77 SwapBuffers(m_hDC);
78 return true;
79 }
80
81 LRESULT OnEraseBkgnd(UINT msg, WPARAM wParam, LPARAM lParam, BOOL & bHandled)
82 {
83
84 return false;
85 }
86
87 LRESULT OnDestroy(UINT msg, WPARAM wParam, LPARAM lParam, BOOL & bHandled)
88 {
89 wglMakeCurrent(NULL, NULL);
90 if (m_hGLRC)
91 wglDeleteContext(m_hGLRC);
92 if (m_hDC)
93 ReleaseDC(m_hDC);
94 m_hDC = 0;
95 m_hGLRC = 0;
96 PostQuitMessage(0);
97 return true;
98 }
99 public:
100 void Show()
101 {
102 ShowWindow(SW_SHOW);
103 UpdateWindow();
104 }
105 private:
106 HDC m_hDC;
107 HGLRC m_hGLRC;
108 };
109
110
111 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
112 {
113 _Module.Init(NULL, hInstance);
114 MyWindow win;
115 win.Show();
116 MSG msg;
117 while (GetMessage(&msg, NULL, 0, 0))
118 {
119 TranslateMessage(&msg);
120 DispatchMessage(&msg);
121 }
122 _Module.Term();
123 return 0;
124 }
