define I_IMAGENONE now that we use it, at least VC6 doesn't have it (thanks buildbot)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57218 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/msw/missing.h b/include/wx/msw/missing.h
index ec4de67ffe9c655f66fdf48ad6952b2731b90819..56339ee4025cd7816e0dfe2f53f6942fb63e96b9 100644 (file)
--- a/include/wx/msw/missing.h
+++ b/include/wx/msw/missing.h
@@ -211,10 +211,14 @@ typedef struct wxtagNMLVCUSTOMDRAW_ {
 #endif // defined __VISUALC__ && __VISUALC__ <= 1100
 
 // ----------------------------------------------------------------------------
-// ListView common control
-// Needed by listctrl.cpp
+// definitions related to ListView and Header common controls, needed by
+// msw/listctrl.cpp and msw/headerctrl.cpp
 // ----------------------------------------------------------------------------
 
+#ifndef I_IMAGENONE
+    #define I_IMAGENONE (-2)
+#endif
+
 #ifndef LVS_EX_FULLROWSELECT
     #define LVS_EX_FULLROWSELECT 0x00000020
 #endif