X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6e6b35578d9be94739e1f9ebadcb57d9a483db6a..32485259c1342115488d219776dfebeb3d4d81b1:/wxPython/src/_vscroll.i

diff --git a/wxPython/src/_vscroll.i b/wxPython/src/_vscroll.i
index ff24d30bd3..e833ef77b6 100644
--- a/wxPython/src/_vscroll.i
+++ b/wxPython/src/_vscroll.i
@@ -189,14 +189,25 @@ public:
     size_t GetLineCount() const;
 
     // get the first currently visible line
-    size_t GetFirstVisibleLine() const;
+    size_t GetVisibleBegin() const;
 
     // get the last currently visible line
-    size_t GetLastVisibleLine() const;
+    size_t GetVisibleEnd() const;
 
     // is this line currently visible?
     bool IsVisible(size_t line) const;
 
+    // this is the same as GetVisibleBegin(), exists to match
+    // GetLastVisibleLine() and for backwards compatibility only
+    size_t GetFirstVisibleLine() const;
+
+    // get the last currently visible line
+    //
+    // this function is unsafe as it returns (size_t)-1 (i.e. a huge positive
+    // number) if the control is empty, use GetVisibleEnd() instead, this one
+    // is kept for backwards compatibility
+    size_t GetLastVisibleLine() const;
+
 };
 
 //---------------------------------------------------------------------------