updated for version 7.0c01
diff --git a/src/proto/gui_photon.pro b/src/proto/gui_photon.pro
index 0ffbaaa..bd5f43e 100644
--- a/src/proto/gui_photon.pro
+++ b/src/proto/gui_photon.pro
@@ -11,7 +11,7 @@
extern int gui_mch_dialog __ARGS((int type, char_u *title, char_u *message, char_u *buttons, int default_button, char_u *textfield));
extern int gui_mch_get_winpos __ARGS((int *x, int *y));
extern void gui_mch_set_winpos __ARGS((int x, int y));
-extern void gui_mch_set_shellsize __ARGS((int width, int height, int min_width, int min_height, int base_width, int base_height));
+extern void gui_mch_set_shellsize __ARGS((int width, int height, int min_width, int min_height, int base_width, int base_height, int direction));
extern void gui_mch_get_screen_dimensions __ARGS((int *screen_w, int *screen_h));
extern void gui_mch_iconify __ARGS((void));
extern void gui_mch_set_foreground __ARGS((void));