Function wheel_callback

test/browser/test_html5_mouse.c:85–97

}

bool wheel_callback(int eventType, const EmscriptenWheelEvent *e, void *userData) {
  printf("%s, screen: (%d,%d), client: (%d,%d),%s%s%s%s button: %hu, buttons: %hu, target: (%d, %d), delta:(%g,%g,%g), deltaMode:%u\n",
    emscripten_event_type_to_string(eventType), e->mouse.screenX, e->mouse.screenY, e->mouse.clientX, e->mouse.clientY,
    e->mouse.ctrlKey ? " CTRL" : "", e->mouse.shiftKey ? " SHIFT" : "", e->mouse.altKey ? " ALT" : "", e->mouse.metaKey ? " META" : "", 
    e->mouse.button, e->mouse.buttons, e->mouse.targetX, e->mouse.targetY,
    (float)e->deltaX, (float)e->deltaY, (float)e->deltaZ, e->deltaMode);

  if (e->deltaY > 0.f || e->deltaY < 0.f)
    gotWheel = 1;

  instruction();
  return 0;
}

int main() {
  // Make the canvas area stand out from the background.