sdlxGetTextureAlphaModFloat function render

double? sdlxGetTextureAlphaModFloat(Pointer<SdlTexture> texture)

Get the additional alpha value multiplied into render copy operations.

\param texture the texture to query. \param alpha a pointer filled in with the current alpha value. \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_GetTextureAlphaMod \sa SDL_GetTextureColorModFloat \sa SDL_SetTextureAlphaModFloat

extern SDL_DECLSPEC bool SDLCALL SDL_GetTextureAlphaModFloat(SDL_Texture *texture, float *alpha)

See also:

• SDL_GetTextureAlphaModFloat - SDL3 Wiki

Implementation

double? sdlxGetTextureAlphaModFloat(Pointer<SdlTexture> texture) =>
    ffi.using((arena) {
      final alphaPointer = arena<Float>();

      final bl = sdlGetTextureAlphaModFloat(texture, alphaPointer);

      if (!bl) {
        return null;
      }

      return alphaPointer.value;
    });