(svn r1497) -Fix: [1101179] Crash if generating land while industry window is open. This also happened for towns and the land information window

-Added DeleteWindowByClass() function that deletes all windows of a given class

1 files changed, 1 insertions, 0 deletions

diff --git a/functions.h b/functions.h
index 6ddcf05ba..b3e99906f 100644
--- a/functions.h
+++ b/functions.h
@@ -201,6 +201,7 @@ void InvalidateWindow(byte cls, WindowNumber number);
 void InvalidateWindowWidget(byte cls, WindowNumber number, byte widget_index);
 void InvalidateWindowClasses(byte cls);
 void DeleteWindowById(WindowClass cls, WindowNumber number);
+void DeleteWindowByClass(WindowClass cls);
 
 void SetObjectToPlaceWnd(int icon, byte mode, Window *w);
 void SetObjectToPlace(int icon, byte mode, WindowClass window_class, WindowNumber window_num);