sdlRenderCoordinatesToWindow function

bool sdlRenderCoordinatesToWindow(
  1. Pointer<SdlRenderer> renderer,
  2. double x,
  3. double y,
  4. Pointer<Float> windowX,
  5. Pointer<Float> windowY,
)

Get a point in window coordinates when given a point in render coordinates.

This takes into account several states:

  • The window dimensions.
  • The logical presentation settings (SDL_SetRenderLogicalPresentation)
  • The scale (SDL_SetRenderScale)
  • The viewport (SDL_SetRenderViewport)

\param renderer the rendering context. \param x the x coordinate in render coordinates. \param y the y coordinate in render coordinates. \param window_x a pointer filled with the x coordinate in window coordinates. \param window_y a pointer filled with the y coordinate in window coordinates. \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 3.1.3.

\sa SDL_SetRenderLogicalPresentation \sa SDL_SetRenderScale \sa SDL_SetRenderViewport

extern SDL_DECLSPEC bool SDLCALL SDL_RenderCoordinatesToWindow(SDL_Renderer *renderer, float x, float y, float *window_x, float *window_y)

Implementation

bool sdlRenderCoordinatesToWindow(Pointer<SdlRenderer> renderer, double x,
    double y, Pointer<Float> windowX, Pointer<Float> windowY) {
  final sdlRenderCoordinatesToWindowLookupFunction = libSdl3.lookupFunction<
      Uint8 Function(Pointer<SdlRenderer> renderer, Float x, Float y,
          Pointer<Float> windowX, Pointer<Float> windowY),
      int Function(
          Pointer<SdlRenderer> renderer,
          double x,
          double y,
          Pointer<Float> windowX,
          Pointer<Float> windowY)>('SDL_RenderCoordinatesToWindow');
  return sdlRenderCoordinatesToWindowLookupFunction(
          renderer, x, y, windowX, windowY) ==
      1;
}