diff options
| -rw-r--r-- | src/crystfelimageview.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/crystfelimageview.c b/src/crystfelimageview.c index d5c0b51f..6d6cbd60 100644 --- a/src/crystfelimageview.c +++ b/src/crystfelimageview.c @@ -133,6 +133,8 @@ static gint scroll_sig(GtkWidget *window, GdkEventScroll *event, int claim = FALSE; int zoom_allowed = 1; + if ( iv->image == NULL ) return FALSE; + if ( event->direction == GDK_SCROLL_UP ) { zoom_scale = 1.1; claim = TRUE; |