+ typedef struct {
+ unsigned char *data;
+ int width;
+ int height;
+ int stride;
+ } Display_Image_Surface;
+
+ virtual bool has_inline_display () { return false; }
+ virtual Display_Image_Surface* render_inline_display (uint32_t, uint32_t) { return NULL; }
+ PBD::Signal0<void> QueueDraw;
+