Windows函数ChoosePixelFormat在Windows 7上返回ERR_OLD_WIN_VERSION

我试图通过制作一个窗口并附加一个OpenGL上下文来教会自己的win32 API。 为了获取适当的像素格式，必须调用ChoosePixelFormat，它应该返回系统支持的像素格式，并最能满足我的需求。 当我检查错误一切顺利，直到这个函数被调用，停止执行，并logging错误1150-ERR_OLD_WIN_VERSION，这应该是我的版本的Windows不支持此function。 这显然不是这种情况，MSDN确认这个函数运行在Windows 2000以后的所有版本的Windows上。现在，我正在桌面上运行Windows 7 x64，并确保我的video驱动程序和操作系统完全更新。 像素格式函数似乎有很多人有麻烦，但我还没有find任何与我的问题，所以我决定张贴在这里寻求帮助。 这是我的完整代码; 我没有在我自己的机器上testing过。

WinMain.cpp（这是链接的唯一的非默认msvc lib是opengl32.lib）

#include"Display.h" #include<iostream> #include<fstream> MSG message; DWORD error; int status; LRESULT CALLBACK WndProc(HWND hWindow, UINT message, WPARAM wParam, LPARAM lParam) { switch(message) {case WM_CREATE: return 0; case WM_DESTROY: PostQuitMessage(0); return 0; case WM_KEYDOWN: switch(wParam) {case VK_ESCAPE: PostQuitMessage(0); return 0;}} return DefWindowProc(hWindow, message, wParam, lParam);} int MainLoop(Display d) { while((status = PeekMessage(&message, d.hWindow, 0, 0, PM_REMOVE)) != 0) { if (status == -1) { return -1; } DispatchMessage(&message); } return 0; } int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { std::ofstream file("log.txt", std::ios::trunc); Display window("TEST", hInstance, WndProc, 50, 50, 50, 50, NULL, NULL); if(window.status == -1) { error = GetLastError(); file << error; return 1;} ShowWindow(window.hWindow, SW_SHOWNORMAL); EnableWindow(window.hWindow, true); MainLoop(window); return 0; } 

Display.h（问题发生在类的构造函数中）

 #include <Windows.h> class Display {public: Display(const char*, HINSTANCE, WNDPROC, int, int, int, int, DWORD, DWORD); ~Display(); HWND hWindow; int status; private: WNDCLASSEX data; HDC hDeviceContext; HGLRC hGLContext; PIXELFORMATDESCRIPTOR PFD; int x, y, width, height;}; Display::Display(const char* title, HINSTANCE InstanceHandle, WNDPROC WindowProcedure, int ScreenPositionX, int ScreenPositionY, int WindowWidth, int WindowHeight, DWORD StyleFlags, DWORD ExtendedStyleFlags) { data.cbSize = sizeof(WNDCLASSEX); data.style = CS_OWNDC; data.lpfnWndProc = WindowProcedure; data.cbClsExtra = 0; data.cbWndExtra = 0; data.hInstance = InstanceHandle; data.hIcon = NULL; data.hCursor = NULL; data.hbrBackground = NULL; data.lpszMenuName = NULL; data.lpszClassName = "WIN1"; data.hIconSm = NULL; RegisterClassEx(&data); hWindow = CreateWindowEx(ExtendedStyleFlags, data.lpszClassName, title, StyleFlags | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, x = ScreenPositionX, y = ScreenPositionY, width = WindowWidth, height = WindowHeight, NULL, NULL, InstanceHandle, NULL); PFD.nSize = sizeof(PIXELFORMATDESCRIPTOR); PFD.nVersion = 1; PFD.iPixelType = PFD_TYPE_RGBA; PFD.iLayerType = PFD_MAIN_PLANE; PFD.dwVisibleMask = 0; PFD.dwLayerMask = 0; PFD.dwDamageMask = 0; PFD.dwFlags = PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL; PFD.cAuxBuffers = 0; PFD.bReserved = 0; PFD.cColorBits = 24; PFD.cAccumBits = 0; PFD.cDepthBits = 32; PFD.cStencilBits = 0; PFD.cAlphaBits = 0; PFD.cAccumAlphaBits = 0; PFD.cAlphaShift = 0; PFD.cBlueBits = 0; PFD.cAccumBlueBits = 0; PFD.cBlueShift = 0; PFD.cGreenBits = 0; PFD.cAccumGreenBits = 0; PFD.cGreenShift = 0; PFD.cRedBits = 0; PFD.cAccumRedBits = 0; PFD.cRedShift = 0; hDeviceContext = GetDC(hWindow); int pf = ChoosePixelFormat(hDeviceContext, &PFD); //throws error 1150, next three throw error 2000 because of this failing SetPixelFormat(hDeviceContext, pf, &PFD); hGLContext = wglCreateContext(hDeviceContext); wglMakeCurrent(hDeviceContext, hGLContext); if(GetLastError() != ERROR_SUCCESS) {status = -1;} else {status = 0;} return;} Display::~Display() { wglMakeCurrent(NULL, NULL); wglDeleteContext(hGLContext); DestroyWindow(hWindow); UnregisterClass(data.lpszClassName, data.hInstance);} 

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 #ifndef WINVER # define WINVER 0x0500 #endif