#define MSP_GRAPHICS_DISPLAY_PRIVATE_H_
#include <map>
+#include <vector>
#include "display.h"
#include "display_platform.h"
#include "window_private.h"
namespace Msp {
namespace Graphics {
-struct Display::Private
+struct Display::Private: PlatformDisplayPrivate
{
DisplayHandle display;
std::map<WindowHandle, Window *> windows;