fixed STC under Win64: as wxStyledTextCtrl::SendMsg() used (32 bit) long arguments, passing (64 bit) pointers to it almost certainly didn't work

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54236 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/stc/stc.h

@@ -3571,7 +3571,7 @@ public:
     // NB: this method is not really const as it can modify the control but it
     //     has to be declared as such as it's called from both const and
     //     non-const methods and we can't distinguish between the two
-    long SendMsg(int msg, long wp=0, long lp=0) const;
+    long SendMsg(int msg, wxUIntPtr wp=0, wxIntPtr lp=0) const;
 
 
     // Set the vertical scrollbar to use instead of the ont that's built-in.