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The Clipboard owner's OnHScrollClipboard member function is called by the Clipboard viewer when the Clipboard data has the CF_OWNERDISPLAY format and there is an event in the Clipboard viewer's horizontal scroll bar.

afx_msg void OnHScrollClipboard(
   CWnd* pClipAppWnd,
   UINT nSBCode,
   UINT nPos 



Specifies a pointer to a Clipboard-viewer window. The pointer may be temporary and should not be stored for later use.


Specifies one of the following scroll-bar codes in the low-order word:

  • SB_BOTTOM   Scroll to lower right.

  • SB_ENDSCROLL   End scroll.

  • SB_LINEDOWN   Scroll one line down.

  • SB_LINEUP   Scroll one line up.

  • SB_PAGEDOWN   Scroll one page down.

  • SB_PAGEUP   Scroll one page up.

  • SB_THUMBPOSITION   Scroll to the absolute position. The current position is provided in nPos.

  • SB_TOP   Scroll to upper left.


Contains the scroll-box position if the scroll-bar code is SB_THUMBPOSITION; otherwise not used.

The owner should scroll the Clipboard image, invalidate the appropriate section, and update the scroll-bar values.


This member function is called by the framework to allow your application to handle a Windows message. The parameters passed to your function reflect the parameters received by the framework when the message was received. If you call the base-class implementation of this function, that implementation will use the parameters originally passed with the message and not the parameters you supply to the function.

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