Use /bin/echo for creation of Mac OS X PkgInfo files.

[wxWidgets.git] / include / wx / window.h

diff --git a/include/wx/window.h b/include/wx/window.h
index b644b17f5518f4af836fd2bf677f41f5e71c1a6a..c4442b21414c9153e745871ca4b3e9e0fa0f86db 100644 (file)
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -1029,8 +1029,7 @@ public:
     wxColour GetForegroundColour() const;
 
         // Set/get the background style.
-    virtual bool SetBackgroundStyle(wxBackgroundStyle style)
-        { m_backgroundStyle = style; return true; }
+    virtual bool SetBackgroundStyle(wxBackgroundStyle style);
     wxBackgroundStyle GetBackgroundStyle() const
         { return m_backgroundStyle; }
 
@@ -1039,6 +1038,13 @@ public:
         // from a parent window
     virtual bool HasTransparentBackground() { return false; }
 
+        // Returns true if background transparency is supported for this
+        // window, i.e. if calling SetBackgroundStyle(wxBG_STYLE_TRANSPARENT)
+        // has a chance of succeeding. If reason argument is non-NULL, returns a
+        // user-readable explanation of why it isn't supported if the return
+        // value is false.
+    virtual bool IsTransparentBackgroundSupported(wxString* reason = NULL) const;
+
         // set/retrieve the font for the window (SetFont() returns true if the
         // font really changed)
     virtual bool SetFont(const wxFont& font) = 0;