-VLC_EXPORT(void, vout_SetDisplayFullscreen, (vout_display_t *, bool is_fullscreen));
-VLC_EXPORT(void, vout_SetDisplayFilled, (vout_display_t *, bool is_filled));
-VLC_EXPORT(void, vout_SetDisplayZoom, (vout_display_t *, int num, int den));
-VLC_EXPORT(void, vout_SetWindowState, (vout_display_t *, unsigned state));
-VLC_EXPORT(void, vout_SetDisplayAspect, (vout_display_t *, unsigned dar_num, unsigned dar_den));
-VLC_EXPORT(void, vout_SetDisplayCrop, (vout_display_t *, unsigned crop_num, unsigned crop_den, unsigned left, unsigned top, int right, int bottom));
-VLC_EXPORT(vout_opengl_t *, vout_GetDisplayOpengl, (vout_display_t *));
+VLC_API void vout_SetDisplayFullscreen(vout_display_t *, bool is_fullscreen);
+VLC_API void vout_SetDisplayFilled(vout_display_t *, bool is_filled);
+VLC_API void vout_SetDisplayZoom(vout_display_t *, unsigned num, unsigned den);
+VLC_API void vout_SetWindowState(vout_display_t *, unsigned state);
+VLC_API void vout_SetDisplayAspect(vout_display_t *, unsigned dar_num, unsigned dar_den);
+VLC_API void vout_SetDisplayCrop(vout_display_t *, unsigned crop_num, unsigned crop_den, unsigned left, unsigned top, int right, int bottom);
+
+struct vlc_gl_t;
+VLC_API struct vlc_gl_t * vout_GetDisplayOpengl(vout_display_t *);