Access violation when call SetPixelFormat

Yuya_Fukazawa_bn7 — Fri, 24 Jul 2026 03:07:45 GMT

static void InitPixelFormat(HDC hDC) { PIXELFORMATDESCRIPTOR pixelFormatDescriptor{}; pixelFormatDescriptor.nSize = sizeof(PIXELFORMATDESCRIPTOR); pixelFormatDescriptor.nVersion = 1; pixelFormatDescriptor.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER; pixelFormatDescriptor.iPixelType = PFD_TYPE_RGBA; pixelFormatDescriptor.cColorBits = 24; pixelFormatDescriptor.iLayerType = PFD_MAIN_PLANE; int pixelFormat = ::ChoosePixelFormat(hDC, &pixelFormatDescriptor); ThrowIfFailed(pixelFormat != 0); BOOL result = ::SetPixelFormat(hDC, pixelFormat, &pixelFormatDescriptor); ThrowIfFailed(result != FALSE); } static void CreateWindowAndSetPixelFormat() { HWND hWindow = MyCreateWindow(1, 1); HDC hDC = ::GetDC(hWindow); ThrowIfFailed(hDC != NULL); InitPixelFormat(hDC); ::ReleaseDC (hWindow, hDC); ::DestroyWindow(hWindow); } int main(void) { std::thread thread(CreateWindowAndSetPixelFormat); thread.join(); CreateWindowAndSetPixelFormat(); // 0xC0000005 (Access violation) in igxelpicd64.dll when call SetPixelFormat return 0; }

When call SetPixelFormat after the thread that called SetPixelFormat has terminated,
an exception (0xC0000005, Access violation) occurs in igxelpicd64.dll.

Isn't this a driver bug?

I have attached some files.

SSUScanInfo.txt .. Intel System Support Utility output.
SetPixelFormatTest .. Visual Studio Solution (Reproduction environment)

topic Access violation when call SetPixelFormat in Graphics

Access violation when call SetPixelFormat