opengl

include

Name: opengl
Rating: 3.4 (9141 reviews)
Author: __040711563a17902392e7

// Window procedure function
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
// Handle window messages here
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
// Register window class

WNDCLASS wc = { 0 };
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;

// wc.lpszClassName = className;
RegisterClass(&wc);

// Create window
HWND hwnd = CreateWindowEx(
    0, NULL, L"OpenGL Window", WS_OVERLAPPEDWINDOW,
    CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
    NULL, NULL, hInstance, NULL
);

// Create OpenGL rendering context
HDC hdc = GetDC(hwnd);
PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), 1,
    PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
    PFD_TYPE_RGBA, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
int pixelFormat = ChoosePixelFormat(hdc, &pfd);
SetPixelFormat(hdc, pixelFormat, &pfd);
HGLRC hglrc = wglCreateContext(hdc);
wglMakeCurrent(hdc, hglrc);

// Main loop
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
MSG msg;
while (GetMessage(&msg, NULL, 0, 0)) {
    TranslateMessage(&msg);
    DispatchMessage(&msg);
}

// Clean up
wglMakeCurrent(NULL, NULL);
wglDeleteContext(hglrc);
ReleaseDC(hwnd, hdc);
DestroyWindow(hwnd);

return 0;

}