ButtonRegionFor  2150 src/haiku_support.cc 	if (ButtonRegionFor (current_part).Contains (point))
ButtonRegionFor  2294 src/haiku_support.cc 	r = ButtonRegionFor (HAIKU_SCROLL_BAR_UP_BUTTON);
ButtonRegionFor  2308 src/haiku_support.cc 	r = ButtonRegionFor (HAIKU_SCROLL_BAR_DOWN_BUTTON);