added IsEmpty

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18490 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-01-01 22:09:41 +00:00
parent 3dabb1e51b
commit a8dade3e27
1 changed files with 2 additions and 0 deletions
--- a/include/wx/ctrlsub.h
+++ b/include/wx/ctrlsub.h
@@ -57,6 +57,8 @@ public:
    // -----------------

    virtual int GetCount() const = 0;
+    bool IsEmpty() const { return GetCount() == 0; }
+
    virtual wxString GetString(int n) const = 0;
    virtual void SetString(int n, const wxString& s) = 0;
    virtual int FindString(const wxString& s) const = 0;