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POopengl problem under vista
 

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    <p>I've just started with opengl but I ran into some strange behaviour.</p> <p>Below I posted code that runs well in xp but on vista it renders just black screen.</p> <p>Sorry for posting unusally (as for this board) long code.</p> <p>Is there something very specific to open gl in vista? Thanks.</p> <pre><code>#include&lt;windows.h&gt; #include&lt;gl\gl.h&gt; #include&lt;gl\glu.h&gt; #pragma comment(lib, "opengl32.lib") #pragma comment(lib, "glu32.lib") void InitGL(void) { glClearColor(1,0.3f,0.3f,0.3f); } void DrawGLScene(void) { /* code removed */ } HGLRC hRC = NULL; HDC hDC = NULL; HWND hWnd = NULL; HINSTANCE hInstance = NULL; LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); bool CreateGLWindow(char* title, int width, int height) { GLuint PixelFormat; WNDCLASS wc; RECT WindowRect; WindowRect.left = (long)0; WindowRect.right = (long)width; WindowRect.top = (long)0; WindowRect.bottom = (long)height; LPCSTR nazwa = TEXT("Start"); hInstance = GetModuleHandle(NULL); wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; wc.lpfnWndProc = (WNDPROC)WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = NULL; wc.lpszMenuName = NULL; wc.lpszClassName = nazwa; RegisterClass(&amp;wc); hWnd = CreateWindowEx(WS_EX_APPWINDOW | WS_EX_WINDOWEDGE, nazwa, nazwa, WS_SYSMENU | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, 0,0, width, height, NULL, NULL, hInstance, NULL); static PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), 1, PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, PFD_TYPE_RGBA, 32, 0,0,0,0,0,0, 0, 0, 0, 0,0,0,0, 16, 0, 0, PFD_MAIN_PLANE, 0, 0,0,0 }; hDC = GetDC(hWnd); PixelFormat = ChoosePixelFormat(hDC, &amp;pfd); HRESULT rez = SetPixelFormat(hDC, PixelFormat, &amp;pfd); hRC = wglCreateContext(hDC); wglMakeCurrent(hDC, hRC); ShowWindow(hWnd, SW_SHOW); InitGL(); return true; } LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch(uMsg) { case WM_ACTIVATE: { return 0; } case WM_CLOSE: { PostQuitMessage(0); return 0; } } return DefWindowProc(hWnd, uMsg, wParam, lParam); } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { MSG msg; bool done = false; if (!CreateGLWindow(NULL, 800,600)) { return 0; } while(!done) { if (PeekMessage(&amp;msg, NULL, 0, 0, PM_NOREMOVE)) { if (!GetMessage(&amp;msg, 0, 0, 0)) done = true; else { TranslateMessage(&amp;msg); DispatchMessage(&amp;msg); } } else { DrawGLScene(); SwapBuffers(hDC); } } return (msg.wParam); } </code></pre>
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