research on CFrameWnd class

how to add scroll bar on CFrameWnd is easy, but how to make it scroll is not easy. I need to code some functions.

1. thread: Scroll Bar in a CWnd
2. WM_HSCROLL message
3. WM_VSCROLL message
4. How to Create Scroll Bars
5. Scroll Bar
6. Add Scrolling to a CWnd or CDialog using a C++ Helper Class
7. Building a Dynamic UI using a CWnd Free Pool
8. std::bitset::at() disappear in VS2015
9. Control Positioning and Sizing using a C++ Helper Class
10. Flat-style Menu Bar and Popup Menu Control for WinForms
11. A simple framework for adding undo/redo support
12. Message Maps (MFC)
13. MFC add scrollbar to CWnd member
14. Scroll Bars
15. MFC - Scrollbars
16. How to implement a scrollable child dialog
17. Q262954: HOWTO: Create a Resizeable Dialog Box with Scroll Bars