sdlxGetWindowAspectRatio function video

({double maxAspect, double minAspect})? sdlxGetWindowAspectRatio(Pointer<SdlWindow> window)

Get the aspect ratio of a window's client area.

\param window the window to query the width and height from. \param min_aspect a pointer filled in with the minimum aspect ratio of the window, may be NULL. \param max_aspect a pointer filled in with the maximum aspect ratio of the window, may be NULL. \returns true on success or false on failure; call SDL_GetError() for more information.

\threadsafety This function should only be called on the main thread.

\since This function is available since SDL 3.2.0.

\sa SDL_SetWindowAspectRatio

extern SDL_DECLSPEC bool SDLCALL SDL_GetWindowAspectRatio(SDL_Window *window, float *min_aspect, float *max_aspect)

See also:

• SDL_GetWindowAspectRatio - SDL3 Wiki

Implementation

({double minAspect, double maxAspect})? sdlxGetWindowAspectRatio(
  Pointer<SdlWindow> window,
) {
  var minAspect = 0.0;
  var maxAspect = 0.0;
  final minAspectPointer = ffi.calloc<Float>();
  final maxAspectPointer = ffi.calloc<Float>();
  final result = sdlGetWindowAspectRatio(
    window,
    minAspectPointer,
    maxAspectPointer,
  );
  if (result) {
    minAspect = minAspectPointer.value;
    maxAspect = maxAspectPointer.value;
  }
  minAspectPointer.callocFree();
  maxAspectPointer.callocFree();
  if (!result) {
    return null;
  }
  return (minAspect: minAspect, maxAspect: maxAspect);
}