CWindowScroller

/****************************************************************************
WindowScroller.h : header file

Written by : PJ Arends
pja@telus.net

Copyright (c) 2003 PJ Arends

-----------------------------------------------------------------------------
This code is provided as is, with no warranty as to it's suitability or usefulness
in any application in which it may be used. This code has not been tested for
UNICODE builds.

This code may be used in any way you desire. This file may be redistributed by any
means as long as it is not sold for profit, and providing that this notice and the
authors name are included.

If any bugs are found and fixed, a note to the author explaining the problem and
fix would be nice.
-----------------------------------------------------------------------------

****************************************************************************/

#if !defined(AFX_WINDOWSCROLLER_H__EAD6ECEB_81D1_4E3F_A858_6F3902A9911C__INCLUDED_)
#define AFX_WINDOWSCROLLER_H__EAD6ECEB_81D1_4E3F_A858_6F3902A9911C__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <afxwin.h>

/////////////////////////////////////////////////////////////////////////////
// CWindowScroller window

//#define RWM_OnDestroyWindowScrollerString _T("RWM_OnDestroyWindowScroller{3B89C798-5382-4b00-8668-5EB1649C6294}")
const UINT RWM_ONSTARTWINDOWSCROLLER = RegisterWindowMessage(_T("PJA_RWM_STARTWINDOWSCROLLER"));
const UINT RWM_ONDESTROYWINDOWSCROLLER = RegisterWindowMessage(_T("PJA_RWM_DESTROYWINDOWSCROLLER"));

class CWindowScroller : public CWnd
{
// Construction
public:
    CWindowScroller(CWnd *pParent, CPoint Point, int Pixels = 15, UINT Elapse = 30, int Direction = Both, BOOL bUseThumbPos = TRUE);

// Attributes
public:
    enum AlignEnum
    {
        Vertical = 1,
        Horizontal = 2,
        Both = 3
    };

    HHOOK m_hKeyboardHook;
    HHOOK m_hMouseHook;

protected:
    BOOL m_bWindowScrolled;
    CPoint m_CenterPoint;
    CRgn m_WndRgn;
    CWnd *m_pParentWnd;

    HCURSOR m_DownCursor;
    HCURSOR m_DownLeftCursor;
    HCURSOR m_DownRightCursor;
    HCURSOR m_LeftCursor;
    HCURSOR m_NeutralCursor;
    HCURSOR m_RightCursor;
    HCURSOR m_UpCursor;
    HCURSOR m_UpLeftCursor;
    HCURSOR m_UpRightCursor;

    HICON m_hIcon;

    int m_Alignment;
    int m_HorzScroll;
    int m_ScrollFlag;
    int m_ScrollRatio;
    int m_VertScroll;

// Operations
protected:
    void BuildCursors();
    void Initialize();
    void SetMyCursor();

// Overrides
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CWindowScroller)
    protected:
    virtual void PostNcDestroy();
    //}}AFX_VIRTUAL

// Implementation
public:

// Generated message map functions
protected:
	UINT GetParentWndType();
	UINT m_ParentWndType;
    //{{AFX_MSG(CWindowScroller)
    afx_msg void OnCaptureChanged(CWnd *pWnd);
    afx_msg void OnDestroy();
    afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
    afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
    afx_msg void OnMButtonDown(UINT nFlags, CPoint point);
    afx_msg void OnMButtonUp(UINT nFlags, CPoint point);
    afx_msg void OnMouseMove(UINT nFlags, CPoint point);
    afx_msg void OnPaint();
    afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
    afx_msg void OnRButtonUp(UINT nFlags, CPoint point);
    afx_msg void OnTimer(UINT_PTR nIDEvent);
    //}}AFX_MSG
    afx_msg LRESULT OnXButtonDown(WPARAM wp, LPARAM lp);
    afx_msg LRESULT OnXButtonUp(WPARAM wp, LPARAM lp);
    DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_WINDOWSCROLLER_H__EAD6ECEB_81D1_4E3F_A858_6F3902A9911C__INCLUDED_)