CATIA/3DE CAA二次开发-ScrollWindow滚动窗口

class CScrollContainer : public CWnd
{
public:
	CScrollContainer();

	// Attributes
protected:
	int m_nScrollPos;       // Current scroll position
	int m_nTotalHeight;     // Total content height
	int m_nPageHeight;      // Visible area height
	int m_nLineHeight;      // Single line height

	// Operations
public:
	void SetTotalHeight(int nHeight);   // Set total content height
	void ScrollTo(int nPos);            // Scroll to specified position
	void UpdateScrollBar();             // Update scrollbar state

protected:
	afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
	afx_msg BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg void OnButtonClick(UINT nID);
	DECLARE_MESSAGE_MAP()
};

效果：