http://code.google.com/p/rpcs3/source/detail?r=44

wxWidgets/include/wx/tipdlg.h

@@ -0,0 +1,84 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tipdlg.h
+// Purpose:     declaration of wxTipDialog
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     28.06.99
+// RCS-ID:      $Id: tipdlg.h 35650 2005-09-23 12:56:45Z MR $
+// Copyright:   (c) Vadim Zeitlin
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_TIPDLG_H_
+#define _WX_TIPDLG_H_
+
+// ----------------------------------------------------------------------------
+// headers which we must include here
+// ----------------------------------------------------------------------------
+
+#include "wx/defs.h"
+
+#if wxUSE_STARTUP_TIPS
+
+#include "wx/textfile.h"
+
+// ----------------------------------------------------------------------------
+// wxTipProvider - a class which is used by wxTipDialog to get the text of the
+// tips
+// ----------------------------------------------------------------------------
+
+// the abstract base class: it provides the tips, i.e. implements the GetTip()
+// function which returns the new tip each time it's called. To support this,
+// wxTipProvider evidently needs some internal state which is the tip "index"
+// and which should be saved/restored by the program to not always show one and
+// the same tip (of course, you may use random starting position as well...)
+class WXDLLIMPEXP_ADV wxTipProvider
+{
+public:
+    wxTipProvider(size_t currentTip) { m_currentTip = currentTip; }
+
+    // get the current tip and update the internal state to return the next tip
+    // when called for the next time
+    virtual wxString GetTip() = 0;
+
+    // get the current tip "index" (or whatever allows the tip provider to know
+    // from where to start the next time)
+    size_t GetCurrentTip() const { return m_currentTip; }
+
+    // Allows any user-derived class to optionally override this function to
+    // modify the tip as soon as it is read. If return wxEmptyString, then
+    // the tip is skipped, and the next one is read.
+    virtual wxString PreprocessTip(const wxString& tip) { return tip; }
+
+    // virtual dtor for the base class
+    virtual ~wxTipProvider() { }
+
+protected:
+    size_t m_currentTip;
+};
+
+// a function which returns an implementation of wxTipProvider using the
+// specified text file as the source of tips (each line is a tip).
+//
+// NB: the caller is responsible for deleting the pointer!
+WXDLLIMPEXP_ADV wxTipProvider *wxCreateFileTipProvider(const wxString& filename,
+                                                       size_t currentTip);
+
+// ----------------------------------------------------------------------------
+// wxTipDialog
+// ----------------------------------------------------------------------------
+
+// A dialog which shows a "tip" - a short and helpful messages describing to
+// the user some program characteristic. Many programs show the tips at
+// startup, so the dialog has "Show tips on startup" checkbox which allows to
+// the user to disable this (however, it's the program which should show, or
+// not, the dialog on startup depending on its value, not this class).
+//
+// The function returns true if this checkbox is checked, false otherwise.
+WXDLLIMPEXP_ADV bool wxShowTip(wxWindow *parent,
+                               wxTipProvider *tipProvider,
+                               bool showAtStartup = true);
+
+#endif // wxUSE_STARTUP_TIPS
+
+#endif // _WX_TIPDLG_H_