diff options
| -rw-r--r-- | test/cairo_test.cxx | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/test/cairo_test.cxx b/test/cairo_test.cxx index ecd87c6ac..86ca7299b 100644 --- a/test/cairo_test.cxx +++ b/test/cairo_test.cxx @@ -151,7 +151,7 @@ void draw_image(cairo_t *cr, int w, int h) { typedef Fl_Cairo_Window cairo_using_window; -#else // !USE_FL_CAIRO_WINDOW +#else // !USE_FL_CAIRO_WINDOW || defined(FLTK_HAVE_CAIROEXT) class cairo_using_window : public Fl_Double_Window { void (*draw_with_cairo_)(cairo_using_window*, cairo_t*); @@ -169,7 +169,15 @@ public: Fl::cairo_make_current(this); // announce Cairo will be used in this window #endif cairo_t *cc = Fl::cairo_cc(); // get the adequate Cairo context - draw_with_cairo_(this, cc); // draw in this window using Cairo + draw_with_cairo_(this, cc); // draw in this window using Cairo + + // flush Cairo drawings: necessary at least for Windows + // see also FL/Fl_Cairo_Window.H + // FIXME: this should be simplified with an FLTK API, for instance: + // Fl::cairo_flush(cc); + + cairo_surface_t *s = cairo_get_target(Fl::cairo_cc()); + cairo_surface_flush(s); } void set_draw_cb( void (*cb)(cairo_using_window*, cairo_t*)) { draw_with_cairo_ = cb; |