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4eae38580f
Zeroing the window width and height was necessary in SDL2 to short-circuit the resize event deduplication code when the window backing scale changed, but not the logical size. This is no longer necessary in SDL3, as it will explicitly check for scale changes on resize events and dispatch pixel size/scale changed events as appropriate, even if the window's logical size hasn't changed.
Simple DirectMedia Layer (SDL) Version 3.0
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting with README.md. If you are migrating to SDL 3.0 from SDL 2.0, the changes are extensively documented in README-migration.md.
Enjoy!
Sam Lantinga (slouken@libsdl.org)