Function SetWindowClassesDirty

src/window.cpp:3205–3210

* Mark all windows of a particular class as dirty (in need of repainting) * @param cls Window class */

 * @param cls Window class
 */
void SetWindowClassesDirty(WindowClass cls)
{
	for (const Window *w : Window::Iterate()) {
		if (w->window_class == cls) w->SetDirty();
	}
}

/**
 * Mark this window as resized and in need of OnResize() event.