lyfz_repos/经典版源码/lyfzClient/trunk/3.0.0.0/ScrollXP.cpp

// ListXP.cpp: implementation of the CListXP class.
//
//////////////////////////////////////////////////////////////////////
/**************以下设置必需包含在每个子类中**********************/
//头部
////////////////////////////////////////////////////////////////////////////////////////////////////
// 编译预处理
#if _WIN32_WINNT < 0x0400
#define _WIN32_WINNT 0x0400
#endif
// 强制使用 C 语言方式编译
#ifdef __cplusplus
extern "C"
{
#endif // __cplusplus
#include "ScrollXP.h"

//////////////////////////////////////////////////////////////////////////////////////////////////
// 全局变量
extern HHOOK g_hPrevHookXP ;		// 窗口消息 HOOK 句柄
extern PCLASSXP g_pClassXP ;		// 窗口的 CLASSXP 结构指针
extern COLORREF g_crDialogbkColor;  // 窗口背景颜色


//#define AREATOP 1
//#define AREABOTTOM 2
//#define AREALEFT 1
//#define AREARIGHT 2
//#define AREANONE 0
#define SCROLLAREA 0             //滚动条区域
#define SCROLLTOPARROW 1         //上箭头
#define SCROLLBOTTOMARROW 2      //下箭头
#define SCROLLLEFTARROW 3        //左箭头
#define SCROLLRIGHTARROW 4       //右箭头
#define SCROLLTHUMB 5            //移动块
#define SCROLLAREANULL 6         //滚动条空区域
#define SCROLLALL 7              //所有区域
/*static COLORREF gScrolls_crGradientXP[][4] =
	{
		{0x00FFE7CE, 0x00FFE7CE, 0x00EE8269, 0xFFEE8269},
		{0x00C1CCD1, 0x00C1CCD1, 0x00EEF1F2, 0xFFEEF1F2},
		{0x00FFE7CE, 0x00EE8269, 0x00FFE7CE, 0xFFEE8269},
		{0x00C1CCD1, 0x00EEF1F2, 0x00C1CCD1, 0xFFEEF1F2},
		{0x00FFFFFF, 0x00FFFFFF, 0x00D6DFE2, 0xFFD6DFE2},
	};
*/
/**************以下设置必需包含在每个子类中**********************/
//////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
// 绘制 Thumb 块
VOID WINAPI ScrollDrowThumbXP(HDC hDC, RECT Rect, LONG lState)
{
	int i;
//	RECT Rect;
	HANDLE hHandle;
	static COLORREF s_crGradientXP[][4] =
	{
		{0x00EFF3F7, 0x00DEE7E7, 0x00DEE3E7, 0x00DEE3E7},
		{0x00DEAEA5, 0x00F7CBBD, 0x00DE8273, 0x00F7C7B5},
		{0x00EFC7B5, 0x00E7AE94, 0x00DEA284, 0x00DEA68C},
		{0x00FFE3D6, 0x00F7CBBD, 0x00F7C3AD, 0x00F7C7B5},

		{0x00F7F7F7, 0x00EFF3F7, 0x00EFF3F7, 0x00EFF3F7},
		{0x00DEC3BD, 0x00DEB6AD, 0x00FFE3DE, 0x00F7E3DE},
		{0x00EFDBCE, 0x00EFCFC6, 0x00E7CFC6, 0x00E7CBBD},
		{0x00FFEFE7, 0x00FFE7DE, 0x00FFE3DE, 0x00F7E3DE},

		{0x00F7F7F7, 0x00E7EFEF, 0x00E7EBEF, 0x00DEE7E7},
		{0x00F78E6B, 0x00F79684, 0x00EF9E8C, 0x00EFDFD6},
		{0x00FFFFFF, 0x00FFE3CE, 0x00FFDFC6, 0x00FFDBBD},
		{0x00FFEBE7, 0x00FFCFBD, 0x00FFCBB5, 0x00F7CBAD},

		{0x00EFF3F7, 0x00DEE7E7, 0x00EFF3F7, 0x00DEE3E7},//水平滚条
		{0x00DEAEA5, 0x00F7CBBD, 0x00DEAEA5, 0x00F7C7B5},
		{0x00EFC7B5, 0x00E7AE94, 0x00EFC7B5, 0x00DEA68C},
		{0x00FFE3D6, 0x00F7CBBD, 0x00FFE3D6, 0x00F7C7B5},
		{0x00DEE7E7, 0x00DEE7E7, 0x00DEE3E7, 0x00DEE3E7},//垂直滚条
		{0x00F7CBBD, 0x00F7CBBD, 0x00DE8273, 0x00F7C7B5},
		{0x00EFC7B5, 0x00EFC7B5, 0x00E7AE94, 0x00DEA68C},
		{0x00F7CBBD, 0x00F7CBBD, 0x00F7C3AD, 0x00F7C7B5},
	};

//	CopyRect(&Rect, pRect);
	if (lState & CXPH_HASFRAME) //画外框阴影
	{
		//InflateRect(&Rect, -1, -1); 
		//Rect.top--; 
		Rect.right--;Rect.bottom--;
		FrameRect(hDC, &Rect, (HBRUSH )GetStockObject(WHITE_BRUSH));
		hHandle = (HANDLE) SelectObject(hDC,
			CreatePen(PS_SOLID, 1, (lState & CXPS_DISABLED) ? 0x00BDCFCE : 0x00D6B69C));
		MoveToEx(hDC, Rect.right, Rect.top + 2, NULL);
		LineTo(hDC, Rect.right, Rect.bottom - 2);
		LineTo(hDC, Rect.right - 2, Rect.bottom);
		LineTo(hDC, Rect.left + 1, Rect.bottom);
		LineTo(hDC, Rect.left - 1, Rect.bottom - 2);
		DeleteObject(SelectObject(hDC, (HGDIOBJ) hHandle));
		InflateRect(&Rect, -1, -1);
	}
	// 绘制 Thumb 外框
	if (lState & CXPS_DISABLED)
		i = 0;
	else if (lState & CXPS_PRESSED)
		i = 1;
	else if (lState & CXPS_HOTLIGHT)
		i = 2;
	else
		i = 3;	
	if(lState & CXPH_AREA) //只绘滚条内区
	{
	  i += 12;
	  if(lState & CXPS_HORIZON) 
	  {i += 4;
	   GradientRectXP(hDC, &Rect, s_crGradientXP[i]);
	  //InflateRect(&Rect, -1, -1);
	  //GradientRectXP(hDC, &Rect, s_crGradientXP[i + 8]);
	  }
	  else
	  {
	   GradientRectXP(hDC, &Rect, s_crGradientXP[i]);
	  }
	  return;
	}
	else //画按钮
	{
	GradientRectXP(hDC, &Rect, s_crGradientXP[i]);
	// 绘制下拉外框拐角像素
	SetPixel(hDC, Rect.left, Rect.top, s_crGradientXP[i + 4][0]);
	SetPixel(hDC, Rect.right - 1, Rect.top, s_crGradientXP[i + 4][1]);
	SetPixel(hDC, Rect.left, Rect.bottom - 1, s_crGradientXP[i + 4][2]);
	SetPixel(hDC, Rect.right - 1, Rect.bottom - 1, s_crGradientXP[i + 4][3]);		

	// 绘制 Thumb 内框
	InflateRect(&Rect, -1, -1);
	GradientRectXP(hDC, &Rect, s_crGradientXP[i + 8]);
    }
	// 绘制 Thumb 标志
	Rect.left += (Rect.right - Rect.left) / 2;
	Rect.top += (Rect.bottom - Rect.top) / 2;
    
	if (lState & CXPH_DROPHANDLE)
	{
		hHandle = (HANDLE) SelectObject(hDC, CreatePen(PS_SOLID, 1, 0x00FFF7EF));
		for (i = -4; i <= 2; i += 2)
		{
			if (lState & CXPS_HORIZON)
			{
				MoveToEx(hDC, Rect.left + i, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left + i, Rect.top + 3);
			}
			else
			{
				MoveToEx(hDC, Rect.left - 3, Rect.top + i, NULL);
				LineTo(hDC, Rect.left + 3, Rect.top + i);
			}
		}
		DeleteObject(SelectObject(hDC, (HGDIOBJ) hHandle));

		hHandle = (HANDLE) SelectObject(hDC, CreatePen(PS_SOLID, 1, 0x00FFB28C));
		for (i = -3; i <= 3; i += 2)
		{
			if (lState & CXPS_HORIZON)
			{
				MoveToEx(hDC, Rect.left + i, Rect.top - 2, NULL);
				LineTo(hDC, Rect.left + i, Rect.top + 4);
			}
			else
			{
				MoveToEx(hDC, Rect.left - 2, Rect.top + i, NULL);
				LineTo(hDC, Rect.left + 4, Rect.top + i);
			}
		}
	DeleteObject(SelectObject(hDC, (HGDIOBJ) hHandle));
	}
	else
	{
		hHandle = (HANDLE) SelectObject(hDC,
			CreatePen(PS_SOLID, 1, (lState & CXPS_DISABLED) ? 0x00C6CBCE : 0x0084614A));

		if (lState & CXPH_SMALLARROW)
		{
			if (lState & CXPH_LEFTWARDS)
			{
				MoveToEx(hDC, Rect.left - 2, Rect.top, NULL);
				LineTo(hDC, Rect.left - 2, Rect.top + 1);
				MoveToEx(hDC, Rect.left - 1, Rect.top - 1, NULL);
				LineTo(hDC, Rect.left - 1, Rect.top + 2);
				MoveToEx(hDC, Rect.left, Rect.top - 2, NULL);
				LineTo(hDC, Rect.left, Rect.top + 3);
				MoveToEx(hDC, Rect.left + 1, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left + 1, Rect.top);
				MoveToEx(hDC, Rect.left + 1, Rect.top + 1, NULL);
				LineTo(hDC, Rect.left + 1, Rect.top + 4);
			}
			else if (lState & CXPH_UPWARDS)
			{
				MoveToEx(hDC, Rect.left - 3, Rect.top + 1, NULL);
				LineTo(hDC, Rect.left, Rect.top + 1);
				MoveToEx(hDC, Rect.left + 1, Rect.top + 1, NULL);
				LineTo(hDC, Rect.left + 4, Rect.top + 1);
				MoveToEx(hDC, Rect.left - 2, Rect.top, NULL);
				LineTo(hDC, Rect.left + 3, Rect.top);
				MoveToEx(hDC, Rect.left - 1, Rect.top - 1, NULL);
				LineTo(hDC, Rect.left + 2, Rect.top - 1);
				MoveToEx(hDC, Rect.left, Rect.top - 2, NULL);
				LineTo(hDC, Rect.left + 1, Rect.top - 2);
			}
			else if (lState & CXPH_RIGHTWARDS)
			{
				MoveToEx(hDC, Rect.left + 2, Rect.top, NULL);
				LineTo(hDC, Rect.left + 2, Rect.top + 1);
				MoveToEx(hDC, Rect.left + 1, Rect.top - 1, NULL);
				LineTo(hDC, Rect.left + 1, Rect.top + 2);
				MoveToEx(hDC, Rect.left, Rect.top - 2, NULL);
				LineTo(hDC, Rect.left, Rect.top + 3);
				MoveToEx(hDC, Rect.left - 1, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left - 1, Rect.top);
				MoveToEx(hDC, Rect.left - 1, Rect.top + 1, NULL);
				LineTo(hDC, Rect.left - 1, Rect.top + 4);
			}
			else if (lState & CXPH_DOWNWARDS)
			{
				MoveToEx(hDC, Rect.left - 3, Rect.top - 1, NULL);
				LineTo(hDC, Rect.left, Rect.top - 1);
				MoveToEx(hDC, Rect.left + 1, Rect.top - 1, NULL);
				LineTo(hDC, Rect.left + 4, Rect.top - 1);
				MoveToEx(hDC, Rect.left - 2, Rect.top, NULL);
				LineTo(hDC, Rect.left + 3, Rect.top);
				MoveToEx(hDC, Rect.left - 1, Rect.top + 1, NULL);
				LineTo(hDC, Rect.left + 2, Rect.top + 1);
				MoveToEx(hDC, Rect.left, Rect.top + 2, NULL);
				LineTo(hDC, Rect.left + 1, Rect.top + 2);		
			}
		}
		else if (lState & CXPH_LARGEARROW)
		{
			if (lState & CXPH_LEFTWARDS)
			{
				MoveToEx(hDC, Rect.left + 1, Rect.top - 4, NULL);
				LineTo(hDC, Rect.left - 3, Rect.top);
				LineTo(hDC, Rect.left + 2, Rect.top + 5);
				MoveToEx(hDC, Rect.left + 1, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left - 2, Rect.top);
				LineTo(hDC, Rect.left + 2, Rect.top + 4);
				MoveToEx(hDC, Rect.left + 2, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left - 1, Rect.top);
				LineTo(hDC, Rect.left + 3, Rect.top + 4);
			}
			else if (lState & CXPH_UPWARDS)
			{
				MoveToEx(hDC, Rect.left - 4, Rect.top + 1, NULL);
				LineTo(hDC, Rect.left, Rect.top - 3);
				LineTo(hDC, Rect.left + 5, Rect.top + 2);
				MoveToEx(hDC, Rect.left - 3, Rect.top + 1, NULL);
				LineTo(hDC, Rect.left, Rect.top - 2);
				LineTo(hDC, Rect.left + 4, Rect.top + 2);
				MoveToEx(hDC, Rect.left - 3, Rect.top + 2, NULL);
				LineTo(hDC, Rect.left, Rect.top - 1);
				LineTo(hDC, Rect.left + 4, Rect.top + 3);
			}
			else if (lState & CXPH_RIGHTWARDS)
			{
				MoveToEx(hDC, Rect.left - 1, Rect.top - 4, NULL);
				LineTo(hDC, Rect.left + 3, Rect.top);
				LineTo(hDC, Rect.left - 2, Rect.top + 5);
				MoveToEx(hDC, Rect.left - 1, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left + 2, Rect.top);
				LineTo(hDC, Rect.left - 2, Rect.top + 4);
				MoveToEx(hDC, Rect.left - 2, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left + 1, Rect.top);
				LineTo(hDC, Rect.left - 3, Rect.top + 4);
			}
			else if (lState & CXPH_DOWNWARDS)
			{
				MoveToEx(hDC, Rect.left - 4, Rect.top - 2, NULL);
				LineTo(hDC, Rect.left, Rect.top + 2);
				LineTo(hDC, Rect.left + 5, Rect.top - 3);
				MoveToEx(hDC, Rect.left - 3, Rect.top - 2, NULL);
				LineTo(hDC, Rect.left, Rect.top + 1);
				LineTo(hDC, Rect.left + 4, Rect.top - 3);
				MoveToEx(hDC, Rect.left - 3, Rect.top - 3, NULL);
				LineTo(hDC, Rect.left, Rect.top);
				LineTo(hDC, Rect.left + 4, Rect.top - 4);
			}
		}
    DeleteObject(SelectObject(hDC, (HGDIOBJ) hHandle));
	}
}
//画按钮
void ScrollDrawButton(PCLASSXP pCxp, HDC hDC, RECT Rect, 
					  DWORD dwStyle, int nType)
{
/*
FrameRect	FrameRect	画一个矩形框
Lineto		Lineto		画线到
Moveto		Moveto		移	到
Pie		Pie		画扇形
Polygon		Polygon		画多边形
PolyLine	PolyLine	画多根相连的线
Rectangle	Rectangle	画一个实心矩形
RoundRect	RoundRect	画一个圆角的矩形
	{0x00CEF3FF, 0x0063CBFF, 0x0063CBFF, 0x0031B2FF},
*/
	PSCROLLXP pXP;
	pXP = (PSCROLLXP)pCxp->pData;
//	HANDLE hPen, hBrush;
//	RECT rt;
//	POINT szPoint[3];
//    COLORREF crColor   ;
/*    if(dwStyle == SBS_HORZ && pXP->m_bMouseDown)
      GradientRectXP(hDC, &Rect, gScrolls_crGradientXP[0]);
    else if(dwStyle == SBS_HORZ && !pXP->m_bMouseDown)
      GradientRectXP(hDC, &Rect, gScrolls_crGradientXP[1]);
	else if(dwStyle == SBS_VERT && pXP->m_bMouseDown)
      GradientRectXP(hDC, &Rect, gScrolls_crGradientXP[2]);
	else 
      GradientRectXP(hDC, &Rect, gScrolls_crGradientXP[3]);
*/
/*   if(dwStyle == SBS_HORZ)
      GradientRectXP(hDC, &Rect, gScrolls_crGradientXP[1]);
    else 
      GradientRectXP(hDC, &Rect, gScrolls_crGradientXP[3]);
	if(nType != SCROLLAREANULL)//无边框
	{
	  hBrush = SelectObject(hDC, GetStockObject(NULL_BRUSH));
      RoundRect(hDC, Rect.left, Rect.top,
        Rect.right , Rect.bottom , 4,4);
	  SelectObject(hDC, hBrush);
	}
	int nWidth = (Rect.right - Rect.left)/2;
	int nHeight = (Rect.bottom - Rect.top)/2;
	if(pXP->m_bMouseDownArrowForwad ||
	   pXP->m_bMouseDownArrowForback)
		crColor = RGB(123,12,123);
	else
		crColor = RGB(0,0,0);
	switch (nType)
	{
	case SCROLLLEFTARROW: //左箭头
	     hBrush = SelectObject(hDC, CreateSolidBrush(crColor));
		 hPen   = SelectObject(hDC, CreatePen(1,1,crColor));
         szPoint[0].x = Rect.left + 6; szPoint[0].y = Rect.top + nHeight;
		 szPoint[1].x = szPoint[0].x + 3; szPoint[1].y = szPoint[0].y - 3;
		 szPoint[2].x = szPoint[0].x + 3; szPoint[2].y = szPoint[0].y + 3;
		 Polygon(hDC, szPoint, 3);
	     DeleteObject(SelectObject(hDC, hBrush));
	     DeleteObject(SelectObject(hDC, hPen));
		 break;
	case SCROLLRIGHTARROW://右箭头
	     hBrush = SelectObject(hDC, CreateSolidBrush(crColor));
		 hPen   = SelectObject(hDC, CreatePen(1,1,crColor));
         szPoint[0].x = Rect.right - 6; szPoint[0].y = Rect.top + nHeight;
		 szPoint[1].x = szPoint[0].x - 3; szPoint[1].y = szPoint[0].y - 3;
		 szPoint[2].x = szPoint[0].x - 3; szPoint[2].y = szPoint[0].y + 3;
		 Polygon(hDC, szPoint, 3);
	     DeleteObject(SelectObject(hDC, hBrush));
	     DeleteObject(SelectObject(hDC, hPen));
		 break;
	case SCROLLTOPARROW://上箭头
	     hBrush = SelectObject(hDC, CreateSolidBrush(crColor));
		 hPen   = SelectObject(hDC, CreatePen(1,1,crColor));
         szPoint[0].x = Rect.left + nWidth; szPoint[0].y = Rect.top + 5;
		 szPoint[1].x = szPoint[0].x - 3; szPoint[1].y = szPoint[0].y + 3;
		 szPoint[2].x = szPoint[0].x + 3; szPoint[2].y = szPoint[0].y + 3;
		 Polygon(hDC, szPoint, 3);
	     DeleteObject(SelectObject(hDC, hBrush));
	     DeleteObject(SelectObject(hDC, hPen));
		 break;
	case SCROLLBOTTOMARROW://下箭头
	     hBrush = SelectObject(hDC, CreateSolidBrush(crColor));
		 hPen   = SelectObject(hDC, CreatePen(1,1,crColor));
         szPoint[0].x = Rect.left + nWidth; szPoint[0].y = Rect.bottom - 7;
		 szPoint[1].x = szPoint[0].x - 3; szPoint[1].y = szPoint[0].y - 3;
		 szPoint[2].x = szPoint[0].x + 3; szPoint[2].y = szPoint[0].y - 3;
		 Polygon(hDC, szPoint, 3);
	     DeleteObject(SelectObject(hDC, hBrush));
	     DeleteObject(SelectObject(hDC, hPen));
		 break;
	case SCROLLAREA://活动区域
		  break;
    case SCROLLTHUMB://移动块
		 if (pXP->m_bDragging)
	        hBrush = CreateSolidBrush(0x00CEF3FF);
		  else
	        hBrush = CreateSolidBrush(RGB(0,155,0));
		 rt = Rect;
		 if (dwStyle & SBS_VERT)  //垂直
		 { //上下两个边
	     //hBrush = CreateSolidBrush(RGB(213,155,36));
		 rt.left = Rect.left + 1; rt.top = Rect.top + 1;
		 rt.right = Rect.right - 1; rt.bottom = Rect.top + nHeight/2;
		 FillRect(hDC, &rt, (HBRUSH)hBrush);
		 rt.left = Rect.left + 1; rt.top = Rect.bottom - nHeight/2;
		 rt.right = Rect.right - 1; rt.bottom = Rect.bottom - 1;
		 FillRect(hDC, &rt, (HBRUSH)hBrush);
	     DeleteObject(hBrush);
		 }
		 else
		 {//左右两个边
	     //hBrush = CreateSolidBrush(RGB(213,155,36));
		 rt.left = Rect.left + 1; rt.top = Rect.top + 1;
		 rt.right = Rect.left + nWidth/2; rt.bottom = Rect.bottom - 1;
		 FillRect(hDC, &rt, (HBRUSH)hBrush);
		 rt.left = Rect.right - nWidth/2; rt.top = Rect.top + 1;
		 rt.right = Rect.right - 1; rt.bottom = Rect.bottom - 1;
		 FillRect(hDC, &rt, (HBRUSH)hBrush);
	     DeleteObject(hBrush);
		 }
	     pXP->m_ThumbRectOld = pXP->m_ThumbRect;
		 break;
    }
//	FillRect(hDC,&Rect,(HBRUSH)hHandle);
*/
}
//计算移动块大小
void ScrollCalVertical(PCLASSXP pCxp, SCROLLINFO sif, RECT Rect)
{
	PSCROLLXP pXP;
	pXP = (PSCROLLXP)pCxp->pData;

	if(pXP->m_bDragging)sif.nPos = pXP->m_nThumbTrackPos;

	int ThumbWidth = 30;
	if(ThumbWidth > pXP->m_AreaRect.bottom - pXP->m_AreaRect.top)
		ThumbWidth = (pXP->m_AreaRect.bottom - pXP->m_AreaRect.top)/2;
	double height = pXP->m_AreaRect.bottom - pXP->m_AreaRect.top - ThumbWidth;
	double range = sif.nMax - sif.nMin;
	double per = height / range;
	int pos = (int)(per * (sif.nPos - sif.nMin));
	
	if( range <= 0)
		return;
	 pXP->m_ThumbRect.left = Rect.left;
	 pXP->m_ThumbRect.top = pXP->m_AreaRect.top + pos;
	 pXP->m_ThumbRect.right = Rect.right;
	 pXP->m_ThumbRect.bottom = pXP->m_ThumbRect.top + ThumbWidth;
	 InflateRect(&pXP->m_ThumbRect, -2, -1);
}
//画垂直动条
void ScrollDrawVertical(PCLASSXP pCxp, long nType)
{
	BOOL IsWindowEnable;
    RECT Rect;//, NewRect;
	HWND hWnd;
	PSCROLLXP pXP;
	HDC hDC;
	long lState;
	pXP = (PSCROLLXP)pCxp->pData;
	hWnd = pCxp->hWnd;
	GetWindowRect(hWnd, &Rect);
	Rect.right -= Rect.left;
	Rect.bottom -= Rect.top;
	Rect.left = Rect.top = 0;
    long lSmall = 0;
   	IsWindowEnable = IsWindowEnabled(hWnd);
//有效判断
	SCROLLINFO sif;
    ZeroMemory(&sif, sizeof(SCROLLINFO));
	sif.cbSize = sizeof(SCROLLINFO);
	sif.fMask = SIF_ALL;
	if(!GetScrollInfo(hWnd, SB_CTL, &sif))
		return;
    if(sif.nMin == sif.nMax)
		return;
	MEMDCXP Mdcxp;
	Mdcxp.hWnd = hWnd;
	Mdcxp.bTransfer = FALSE;
	Mdcxp.hBitmap = NULL;
	GetMemDCXP(&Mdcxp);
	hDC = Mdcxp.hDC;
//小箭头
	if (Rect.bottom-Rect.left < 2*(Rect.right-Rect.left)) 
      lSmall = CXPH_SMALLARROW;
//上箭头
	pXP->m_TopArrowRect = Rect;
    pXP->m_TopArrowRect.bottom = Rect.top+Rect.right-Rect.left;
   if (nType == SCROLLTOPARROW || nType == SCROLLALL)
   {  if(pXP->m_bMouseDownArrowForback)
	  	  ScrollDrowThumbXP(hDC, pXP->m_TopArrowRect, CXPH_LARGEARROW|CXPH_UPWARDS|CXPS_PRESSED|lSmall);
      else
	  	  ScrollDrowThumbXP(hDC, pXP->m_TopArrowRect, CXPH_LARGEARROW|CXPH_UPWARDS|lSmall);
	  }
//下箭头
	pXP->m_BottomArrowRect = Rect;
    pXP->m_BottomArrowRect.top = Rect.bottom-(Rect.right-Rect.left);
    if (nType == SCROLLBOTTOMARROW || nType == SCROLLALL)
	{ if(pXP->m_bMouseDownArrowForwad)
	  ScrollDrowThumbXP(hDC, pXP->m_BottomArrowRect, CXPH_LARGEARROW|CXPH_DOWNWARDS|CXPS_PRESSED|lSmall);
	  else
	  ScrollDrowThumbXP(hDC, pXP->m_BottomArrowRect, CXPH_LARGEARROW|CXPH_DOWNWARDS|lSmall);
	}
//空区域
	pXP->m_AreaRect = Rect;
    pXP->m_AreaRect.top = pXP->m_TopArrowRect.bottom;//+1;
    pXP->m_AreaRect.bottom = pXP->m_BottomArrowRect.top;// - 1;
	if (nType == SCROLLALL)
	  ScrollDrowThumbXP(hDC, pXP->m_AreaRect, CXPH_HASFRAME|CXPH_AREA);
	else
	  ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, CXPH_AREA);
   
//移动块
	 ScrollCalVertical(pCxp,sif, Rect);
	 lState = CXPH_LARGEARROW|CXPH_DROPHANDLE|CXPS_HOTLIGHT;
	 if (pXP->m_bMouseDown)
		 lState |= CXPS_PRESSED;
	 if(!lSmall)
	    ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, lState);
     ReleaseMemDCXP(&Mdcxp);

}
//计算移动块大小
void ScrollCalHorizontal(PCLASSXP pCxp, SCROLLINFO sif, RECT Rect)
{
	PSCROLLXP pXP;
	pXP = (PSCROLLXP)pCxp->pData;
	if(pXP->m_bDragging)sif.nPos = pXP->m_nThumbTrackPos;
	int ThumbWidth = 30;
	if(ThumbWidth > (pXP->m_AreaRect.right-pXP->m_AreaRect.left))
		ThumbWidth = (pXP->m_AreaRect.right-pXP->m_AreaRect.left)/ 2;

	double width = (pXP->m_AreaRect.right-pXP->m_AreaRect.left) - ThumbWidth;
	double range = sif.nMax - sif.nMin;
	double per = width / range;
	int pos = (int)(per * (sif.nPos - sif.nMin));

	if(range <= 0)return;

	pXP->m_ThumbRect.left =  pXP->m_AreaRect.left + pos;
	pXP->m_ThumbRect.top = Rect.top;
	pXP->m_ThumbRect.right = pXP->m_ThumbRect.left + ThumbWidth;
	pXP->m_ThumbRect.bottom = Rect.bottom;

	if(pXP->m_ThumbRect.right == pXP->m_ThumbRect.left)
		pXP->m_ThumbRect.right = pXP->m_ThumbRect.left + 3;
	InflateRect(&pXP->m_ThumbRect, -1, -3);

}
//画水平滚动条
void ScrollDrawHorizontal(PCLASSXP pCxp, long nType)
{
	BOOL IsWindowEnable;
    RECT Rect;
	HWND hWnd;
	PSCROLLXP pXP;
	HDC hDC;
	long lState;
	pXP = (PSCROLLXP)pCxp->pData;
	hWnd = pCxp->hWnd;
	GetWindowRect(hWnd, &Rect);
	Rect.right -= Rect.left;
	Rect.bottom -= Rect.top;
	Rect.left = Rect.top = 0;
   
	IsWindowEnable = IsWindowEnabled(hWnd);
//有效判断
	SCROLLINFO sif;
    ZeroMemory(&sif, sizeof(SCROLLINFO));
	sif.cbSize = sizeof(SCROLLINFO);
	sif.fMask = SIF_ALL;
	if(!GetScrollInfo(hWnd, SB_CTL, &sif))
		return;
    if(sif.nMin == sif.nMax)
		return;
	MEMDCXP Mdcxp;
	Mdcxp.hWnd = hWnd;
	Mdcxp.bTransfer = FALSE;
	Mdcxp.hBitmap = NULL;
	GetMemDCXP(&Mdcxp);
	hDC = Mdcxp.hDC;
//左箭头
	pXP->m_LeftArrowRect = Rect;
    pXP->m_LeftArrowRect.right = Rect.left+Rect.bottom-Rect.top;
//    if (nType == SCROLLLEFTARROW || nType == SCROLLALL)
//	  ScrollDrawButton(pCxp,hDC,pXP->m_LeftArrowRect, SBS_HORZ,SCROLLLEFTARROW);
   if (nType == SCROLLLEFTARROW || nType == SCROLLALL)
   {  if(pXP->m_bMouseDownArrowForback)
	   ScrollDrowThumbXP(hDC, pXP->m_LeftArrowRect, CXPH_LARGEARROW|CXPH_LEFTWARDS|CXPS_PRESSED);
      else
	   ScrollDrowThumbXP(hDC, pXP->m_LeftArrowRect, CXPH_LARGEARROW|CXPH_LEFTWARDS);
   }

//右箭头
	pXP->m_RightArrowRect = Rect;
    pXP->m_RightArrowRect.left = Rect.right-(Rect.bottom-Rect.top);
//    if (nType == SCROLLRIGHTARROW || nType == SCROLLALL)
//	   ScrollDrawButton(pCxp,hDC,pXP->m_RightArrowRect, SBS_HORZ,SCROLLRIGHTARROW);
    if (nType == SCROLLRIGHTARROW || nType == SCROLLALL)
	{ if(pXP->m_bMouseDownArrowForwad)
	   ScrollDrowThumbXP(hDC, pXP->m_RightArrowRect, CXPH_LARGEARROW|CXPH_RIGHTWARDS|CXPS_PRESSED);
	  else
	   ScrollDrowThumbXP(hDC, pXP->m_RightArrowRect, CXPH_LARGEARROW|CXPH_RIGHTWARDS);
	}
//空区域
	pXP->m_AreaRect = Rect;
    pXP->m_AreaRect.left = pXP->m_LeftArrowRect.right;//+1;
    pXP->m_AreaRect.right = pXP->m_RightArrowRect.left;// - 1;
//	if (nType == SCROLLALL)
//    ScrollDrawButton(pCxp,hDC,pXP->m_AreaRect, SBS_HORZ,SCROLLAREA);
//	else
//    ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect, SBS_HORZ,SCROLLAREANULL);
	if (nType == SCROLLALL)
	  ScrollDrowThumbXP(hDC, pXP->m_AreaRect, CXPS_HORIZON|CXPH_HASFRAME|CXPH_AREA);
	else
	  ScrollDrowThumbXP(hDC, pXP->m_ThumbRect,CXPS_HORIZON|CXPH_AREA);


//移动块
	ScrollCalHorizontal(pCxp,sif, Rect);
//	ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect,SBS_HORZ, SCROLLTHUMB);
	 lState = CXPS_HOTLIGHT|CXPH_DROPHANDLE|CXPS_HORIZON;
	 if (pXP->m_bMouseDown)
		 lState |= CXPS_PRESSED;
	 ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, lState);

/*	if(!IsWindowEnable)
		CRTDraw::RTDrawBitmap(&memDC,&m_ThumbRect,m_ScrollBarHorizontalBitmap[BMP_DISABLE],m_ScrollBarHorizontalBitmapDrawMode[BMP_DISABLE]);
	else
	{
		if(m_bDragging)
			CRTDraw::RTDrawBitmap(&memDC,&m_ThumbRect,m_ScrollBarHorizontalBitmap[BMP_DOWN],m_ScrollBarHorizontalBitmapDrawMode[BMP_DOWN]);
		else
			CRTDraw::RTDrawBitmap(&memDC,&m_ThumbRect,m_ScrollBarHorizontalBitmap[BMP_NORMAL],m_ScrollBarHorizontalBitmapDrawMode[BMP_NORMAL]);
	}
*/
	ReleaseMemDCXP(&Mdcxp);
}
//压下左键
void ScrollOnLButtonDown(PCLASSXP pCxp,WPARAM wParam,LPARAM lParam)
//UINT nFlags, CPoint point
{
	SCROLLINFO sif;
	POINT point;
	PSCROLLXP pXP;
	HWND hWnd, hParent;
	HDC hDC;
	DWORD dwStyle;
	pXP = (PSCROLLXP)pCxp->pData;
//	pXP->m_MouseDownTime = 0;
	hWnd = pCxp->hWnd;

    point.x = LOWORD(lParam);
    point.y = HIWORD(lParam);

	SetCapture(hWnd);
//	DWORD style = GetStyle();
	dwStyle = (DWORD)GetWindowLong(pCxp->hWnd, GWL_STYLE);
	hParent = GetParent(hWnd);
	if((dwStyle & SBS_VERT)==SBS_VERT)
	{
		if(PtInRect(&pXP->m_ThumbRect,point))
		{
			pXP->m_bMouseDown = true;
			pXP->m_MouseDownPoint.x = point.x - pXP->m_ThumbRect.left;
			pXP->m_MouseDownPoint.y = point.y - pXP->m_ThumbRect.top;
	        hDC = GetDC(pCxp->hWnd); //强制刷亮移动块
            //pXP->m_bDragging = true;
			//ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect,SBS_VERT, SCROLLTHUMB);
            ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, 
				CXPH_LARGEARROW|CXPH_DROPHANDLE|CXPS_PRESSED);
            //pXP->m_bDragging = false;
		    //ScrollDrawVertical(pCxp, SCROLLALL);
			ReleaseDC(hWnd,hDC);
		}
		else if(PtInRect(&pXP->m_BottomArrowRect,point))
		{
//			SetTimer(hWnd,2,100,NULL);
			pXP->m_bMouseDownArrowForwad = true;
	        //hDC = GetDC(pCxp->hWnd);
			//ReleaseDC(hWnd,hDC);
		    SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
			SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_LINEDOWN,0),(LPARAM)hWnd);
            SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		    ScrollDrawVertical(pCxp, SCROLLBOTTOMARROW);
			//CClientDC dc(this);
			//DrawVertical(&dc);

		}
		else if(PtInRect(&pXP->m_TopArrowRect,point))
		{
//			SetTimer(hWnd,2,100,NULL);
			pXP->m_bMouseDownArrowForback = true;
	        //hDC = GetDC(pCxp->hWnd);
			//ReleaseDC(hWnd,hDC);
		    SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
			SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_LINEUP,0),(LPARAM)hWnd);
		    SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		    ScrollDrawVertical(pCxp, SCROLLTOPARROW);
			//CClientDC dc(this);
			//DrawVertical(&dc);
			//SetTimer(2,100,NULL);

		}
		else if(PtInRect(&pXP->m_AreaRect,point))
		{	
			if(hParent != NULL)
			{
				ZeroMemory(&sif,sizeof(sif));
				sif.cbSize = sizeof(sif);
				sif.fMask = SIF_ALL;
//				GetScrollInfo(hWnd,SB_VERT, &sif);
                GetScrollInfo(hWnd, SB_CTL, &sif);
			
				if(point.y < pXP->m_ThumbRect.top)
				{
					pXP->m_bMouseDownArrowForback = TRUE;
		             SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
					SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_PAGEUP,0),(LPARAM)hWnd);
		            SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		            ScrollDrawVertical(pCxp, SCROLLAREANULL);
				}
				else
				{
					pXP->m_bMouseDownArrowForwad = TRUE;
		            SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
					SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_PAGEDOWN,0),(LPARAM)hWnd);
		            SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		            ScrollDrawVertical(pCxp, SCROLLAREANULL);
				}
			}
//			SetTimer(hWnd,1,100,NULL);
			//SetTimer(1,100,NULL);
		}
	}
  else
	{
		if(PtInRect(&pXP->m_ThumbRect,point))
		{
			pXP->m_bMouseDown = true;
			pXP->m_MouseDownPoint.x = point.x - pXP->m_ThumbRect.left;
			pXP->m_MouseDownPoint.y = point.y - pXP->m_ThumbRect.top;
            pXP->m_bDragging = true;
		
	        hDC = GetDC(pCxp->hWnd);   //强制刷亮移动块
//            pXP->m_bDragging = true;
//			ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect,SBS_HORZ, SCROLLTHUMB);
//            pXP->m_bDragging = false;
            ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, CXPS_HORIZON|
				CXPH_LARGEARROW|CXPH_DROPHANDLE|CXPS_PRESSED);
			ReleaseDC(hWnd,hDC);
		}
		else if(PtInRect(&pXP->m_RightArrowRect,point))
		{
			pXP->m_bMouseDownArrowForwad = true;
		    SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
			SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_LINERIGHT,0),(LPARAM)hWnd);
		    SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
//			CClientDC dc(this);
//			DrawHorizontal(&dc);
//	        hDC = GetDC(hWnd);
		    ScrollDrawHorizontal(pCxp, SCROLLRIGHTARROW);
//			ReleaseDC(hWnd,hDC);

//			SetTimer(hWnd,2,100,NULL);
			//SetTimer(2,100,NULL);
		}
		else if(PtInRect(&pXP->m_LeftArrowRect,point))
		{
			pXP->m_bMouseDownArrowForback = true;
		    SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
			SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_LINELEFT,0),(LPARAM)hWnd);
		    SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
//			CClientDC dc(this);
//			DrawHorizontal(&dc);
//	        hDC = GetDC(hWnd);
		    ScrollDrawHorizontal(pCxp, SCROLLLEFTARROW);
//			ReleaseDC(hWnd,hDC);

//			SetTimer(hWnd,2,100,NULL);
		}
		else if(PtInRect(&pXP->m_AreaRect,point))
		{
			if(hParent != NULL)
			{
				ZeroMemory(&sif,sizeof(sif));
				sif.cbSize = sizeof(sif);
				sif.fMask = SIF_ALL;
//				GetScrollInfo(&sif,SIF_PAGE|SIF_RANGE|SIF_POS|SIF_TRACKPOS);
                GetScrollInfo(hWnd, SB_CTL, &sif);
				if(point.x < pXP->m_ThumbRect.left)
				{
					pXP->m_bMouseDownArrowForback = TRUE;
		            SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
					SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_PAGELEFT,0),(LPARAM)hWnd);
		            SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		            ScrollDrawHorizontal(pCxp, SCROLLAREANULL);
				}
				else
				{
					pXP->m_bMouseDownArrowForwad = TRUE;
		            SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
					SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_PAGERIGHT,0),(LPARAM)hWnd);
		            SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		            ScrollDrawHorizontal(pCxp, SCROLLAREANULL);
				}
			}

//			SetTimer(hWnd,1,100,NULL);
		}
	}

}
////////////////////////////////////////////////////////////
//松开左键
void ScrollOnLButtonUp(PCLASSXP pCxp,WPARAM wParam,LPARAM lParam)
//UINT nFlags, CPoint point
{
	POINT point, mousePoint;
	PSCROLLXP pXP;
	HWND hWnd, hParent;
	HDC hDC;
	DWORD dwStyle;
	SCROLLINFO sif;
	pXP = (PSCROLLXP)pCxp->pData;
	pXP->m_MouseDownTime = 0;
	hWnd = pCxp->hWnd;

    point.x = LOWORD(lParam);
    point.y = HIWORD(lParam);
	ReleaseCapture();
	
//	DWORD style = GetStyle();
//	CWnd *pParent = GetParent();
	dwStyle = (DWORD)GetWindowLong(pCxp->hWnd, GWL_STYLE);
	hParent = GetParent(hWnd);

	if(pXP->m_bDragging)
	{
		pXP->m_bDragging = FALSE;
		pXP->m_bMouseDown = FALSE;
		mousePoint.x = pXP->m_ThumbRect.left + pXP->m_MouseDownPoint.x;
		mousePoint.y=  pXP->m_ThumbRect.top + pXP->m_MouseDownPoint.y;
		if( (dwStyle & SBS_VERT) == SBS_VERT)
		{
			if(mousePoint.y != point.y)
			{
				int move = point.y - mousePoint.y;
				double pos = pXP->m_ThumbRect.top + move - pXP->m_AreaRect.top;
				double height = (pXP->m_AreaRect.bottom-pXP->m_AreaRect.top) - 
					            (pXP->m_ThumbRect.bottom-pXP->m_ThumbRect.top);
				double per = pos / height;
				//GetScrollInfo(&sif);
				ZeroMemory(&sif,sizeof(sif));
				sif.cbSize = sizeof(SCROLLINFO);
				sif.fMask = SIF_ALL;
                GetScrollInfo(hWnd, SB_CTL, &sif);
				int newpos = (int)((sif.nMax - sif.nMin) * per);
				if(newpos < sif.nMin)newpos = sif.nMin;
				if(newpos > sif.nMax)newpos = sif.nMax;
				if(hParent != NULL)
				{
		            SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
					SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_THUMBPOSITION,newpos),(LPARAM)hWnd);
		            SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
				}
		     //  ScrollDrawVertical(pCxp, SCROLLAREANULL);
			}
		        ScrollDrawVertical(pCxp, SCROLLALL);
		}
		else
		{
			if(mousePoint.x != point.x)
			{
				int move = point.x - mousePoint.x;
				double pos = pXP->m_ThumbRect.left + move - pXP->m_AreaRect.left;
				double width = (pXP->m_AreaRect.right-pXP->m_AreaRect.left) - 
					           (pXP->m_ThumbRect.right-pXP->m_ThumbRect.left);
				double per = pos / width;
				ZeroMemory(&sif,sizeof(sif));
				sif.cbSize = sizeof(SCROLLINFO);
//				GetScrollInfo(&sif);
				sif.fMask = SIF_ALL;
                GetScrollInfo(hWnd, SB_CTL, &sif);
				int newpos = (int)((sif.nMax - sif.nMin) * per);
				if(newpos < sif.nMin)newpos = sif.nMin;
				if(newpos > sif.nMax)newpos = sif.nMax;
				if(hParent != NULL)
				{
		            SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
					SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_THUMBPOSITION,newpos),(LPARAM)hWnd);
		            SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
				}
			}
		        ScrollDrawHorizontal(pCxp, SCROLLALL);
		}
	}

 else if (pXP->m_bMouseDown) //移动块
 {
    hDC = GetDC(pCxp->hWnd); 
    pXP->m_bMouseDown = false;
    if ((dwStyle & SBS_VERT) == SBS_VERT) //
 	 ScrollDrowThumbXP(hDC, pXP->m_ThumbRect,CXPS_HOTLIGHT|CXPH_DROPHANDLE);
	else
 	 ScrollDrowThumbXP(hDC, pXP->m_ThumbRect,CXPS_HOTLIGHT|CXPH_DROPHANDLE|CXPS_HORIZON);
	ReleaseDC(hWnd,hDC);
 }
 else if (pXP->m_bMouseDownArrowForback&&  
	 (dwStyle & SBS_VERT) == SBS_VERT) //上键
 {
   hDC = GetDC(pCxp->hWnd); 
    pXP->m_bMouseDownArrowForback = false;
	ScrollDrowThumbXP(hDC, pXP->m_TopArrowRect, CXPH_LARGEARROW|CXPH_UPWARDS);
	ReleaseDC(hWnd,hDC);
 }
 else if (pXP->m_bMouseDownArrowForwad &&  
	 (dwStyle & SBS_VERT) == SBS_VERT) //下键
 {
   hDC = GetDC(pCxp->hWnd); 
    pXP->m_bMouseDownArrowForwad = false;
	ScrollDrowThumbXP(hDC, pXP->m_BottomArrowRect, CXPH_LARGEARROW|CXPH_DOWNWARDS);
	ReleaseDC(hWnd,hDC);
//    ScrollDrawHorizontal(pCxp, SCROLLRIGHTARROW);
 }
 else if (pXP->m_bMouseDownArrowForback&&  
	 (dwStyle & SBS_HORZ) == SBS_HORZ) //左键
 {
   hDC = GetDC(pCxp->hWnd); 
    pXP->m_bMouseDownArrowForback = false;
	ScrollDrowThumbXP(hDC, pXP->m_LeftArrowRect, CXPH_LARGEARROW|CXPH_LEFTWARDS);
	ReleaseDC(hWnd,hDC);
//    ScrollDrawHorizontal(pCxp, SCROLLLEFTARROW);
 }
 else if (pXP->m_bMouseDownArrowForwad&&  
	 (dwStyle & SBS_HORZ) == SBS_HORZ) //右键
 {
   hDC = GetDC(pCxp->hWnd); 
    pXP->m_bMouseDownArrowForwad = false;
	ScrollDrowThumbXP(hDC, pXP->m_RightArrowRect, CXPH_LARGEARROW|CXPH_RIGHTWARDS);
	ReleaseDC(hWnd,hDC);
//    ScrollDrawHorizontal(pCxp, SCROLLLEFTARROW);
 }

	if(pXP->m_bMouseDown || 
	   pXP->m_bMouseDownArrowForback || 
	   pXP->m_bMouseDownArrowForwad)
	{
		pXP->m_bMouseDown = FALSE;
		pXP->m_bMouseDownArrowForback = FALSE;
		pXP->m_bMouseDownArrowForwad = FALSE;
//        KillTimer(hWnd,2);
//		KillTimer(hWnd,1);
		//CClientDC dc(this);
		//if((style & SBS_VERT) == SBS_VERT)
		//	DrawVertical(&dc);
		//else
		//	DrawHorizontal(&dc);
        //ScrollOnPaint(pCxp);
	}
}

//////////////////////////////////////////////////////////////
void ScrollOnMouseMove(PCLASSXP pCxp, WPARAM wParam, LPARAM lParam)
// UINT nFlags, CPoint point
{
	POINT point, mousePoint;
	PSCROLLXP pXP;
	HWND hWnd, hParent;
	RECT Rect;
	HDC hDC;
	DWORD dwStyle;
	SCROLLINFO sif;
	pXP = (PSCROLLXP)pCxp->pData;
//	pXP->m_MouseDownTime = 0;
	hWnd = pCxp->hWnd;

    point.x = LOWORD(lParam);
    point.y = HIWORD(lParam);
	dwStyle = (DWORD)GetWindowLong(pCxp->hWnd, GWL_STYLE);
    GetWindowRect(hWnd, &Rect);
    Rect.right -= Rect.left;
    Rect.bottom -= Rect.top;
    Rect.left = Rect.top = 0;
	hParent = GetParent(hWnd);
   
//	CWnd *pParent = GetParent();
	if(hParent == NULL)return;

	if(pXP->m_bMouseDown)pXP->m_bDragging = TRUE;
	if(!pXP->m_bDragging)return;

	mousePoint.x = pXP->m_ThumbRect.left + pXP->m_MouseDownPoint.x;
	mousePoint.y = pXP->m_ThumbRect.top + pXP->m_MouseDownPoint.y;
//	DWORD style = GetStyle();
//	dwStyle = (DWORD)GetWindowLong(pCxp->hWnd, GWL_STYLE);

	if( (dwStyle & SBS_VERT) == SBS_VERT)
	{
		if(mousePoint.y == point.y)return;
 //       if(!PtInRect(&Rect,point))return;
		int move = point.y - mousePoint.y;
		double pos = pXP->m_ThumbRect.top + move - pXP->m_AreaRect.top;
		double height = (pXP->m_AreaRect.bottom-pXP->m_AreaRect.top) - 
			            (pXP->m_ThumbRect.bottom-pXP->m_ThumbRect.top);
		double per = pos / height;
//		GetScrollInfo(&sif);
		ZeroMemory(&sif,sizeof(sif));
		sif.cbSize = sizeof(SCROLLINFO);
		sif.fMask = SIF_ALL;
        GetScrollInfo(hWnd, SB_CTL, &sif);

		int newpos = (int)((sif.nMax - sif.nMin) * per);
		if(newpos < sif.nMin) newpos = sif.nMin;
		if(newpos > sif.nMax) newpos = sif.nMax;
		sif.nTrackPos = newpos;
		if(pXP->m_nThumbTrackPos != newpos)
		{
/*			hDC = GetDC(hWnd);
			ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect, SBS_VERT, SCROLLAREANULL);
			pXP->m_nThumbTrackPos = newpos;
			ScrollCalVertical(pCxp,sif,Rect);
			ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect, SBS_VERT, SCROLLTHUMB);
            ReleaseDC(hWnd,hDC);
*/
            SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
		    SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_THUMBTRACK,sif.nTrackPos),(LPARAM)hWnd);
		    SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		    hDC = GetDC(hWnd);
	        ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, CXPH_AREA);
//	        ScrollDrowThumbXP(hDC, pXP->m_AreaRect, CXPH_LARGEARROW|CXPH_HASFRAME);
			pXP->m_nThumbTrackPos = newpos;
	        ScrollCalVertical(pCxp,sif, Rect);
	        ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, CXPS_PRESSED|
		               CXPH_LARGEARROW|CXPH_DROPHANDLE);
            ReleaseDC(hWnd,hDC);
		}
	}
	else
	{
		if(mousePoint.x == point.x)return;
 //       if(!PtInRect(&Rect,point))return;
		int move = point.x - mousePoint.x;
		double pos = pXP->m_ThumbRect.left + move - pXP->m_AreaRect.left;
		double width = (pXP->m_AreaRect.right-pXP->m_AreaRect.left) - 
			           (pXP->m_ThumbRect.right-pXP->m_ThumbRect.left);
		double per = pos / width;
//		GetScrollInfo(&sif);
		ZeroMemory(&sif,sizeof(sif));
		sif.cbSize = sizeof(SCROLLINFO);
		sif.fMask = SIF_ALL;
        GetScrollInfo(hWnd, SB_CTL, &sif);
		int newpos = (int)((sif.nMax - sif.nMin) * per);
		if(newpos < sif.nMin) newpos = sif.nMin;
		if(newpos > sif.nMax) newpos = sif.nMax;
		sif.nTrackPos = newpos;

		if(pXP->m_nThumbTrackPos != newpos)
		{
/*			hDC = GetDC(hWnd);
			ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect, SBS_HORZ, SCROLLAREANULL);
            //GetScrollInfo(hWnd, SB_CTL, &sif);
			pXP->m_nThumbTrackPos = newpos;
			ScrollCalHorizontal(pCxp,sif,Rect);
			ScrollDrawButton(pCxp,hDC,pXP->m_ThumbRect, SBS_HORZ, SCROLLTHUMB);
            ReleaseDC(hWnd,hDC);
*/			
		    SendMessage(hWnd,WM_SETREDRAW,FALSE,0);
			SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_THUMBTRACK,sif.nTrackPos),(LPARAM)hWnd);
		    SendMessage(hWnd,WM_SETREDRAW,TRUE,0);
		    hDC = GetDC(hWnd);
	        ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, CXPS_HORIZON|CXPH_AREA);
			pXP->m_nThumbTrackPos = newpos;
	        ScrollCalHorizontal(pCxp,sif, Rect);
	        ScrollDrowThumbXP(hDC, pXP->m_ThumbRect, CXPS_PRESSED|
		               CXPH_LARGEARROW|CXPH_DROPHANDLE|CXPS_HORIZON);
//			ScrollDrawVertical(pCxp, SCROLLTHUMB);
            ReleaseDC(hWnd,hDC);
		}
	}

}
////////////////////////////////////////////////////////////
void CALLBACK ScrollOnTimer(PCLASSXP pCxp, UINT nIDEvent)
{
//	if(!m_IsEnableSkin)return CScrollBar::OnTimer(nIDEvent);
/*	POINT point;
	SCROLLINFO sif;
	PSCROLLXP pXP;
	HWND hWnd, hParent;
	HDC hDC;
	DWORD dwStyle;
	pXP = (PSCROLLXP)pCxp->pData;
//	pXP->m_MouseDownTime = 0;
	hWnd = pCxp->hWnd;
	if(pXP->m_MouseDownTime < 3)
	{
		pXP->m_MouseDownTime++;
		return;
	}
//	CWnd* pParent = GetParent();

//	DWORD style = GetStyle();
	dwStyle = (DWORD)GetWindowLong(pCxp->hWnd, GWL_STYLE);
	hParent = GetParent(hWnd);
//	GetScrollInfo(&sif);
//	GetScrollInfo(hWnd,SB_VERT, &sif);
	if( (dwStyle & SBS_VERT) == SBS_VERT)
	{
		if(nIDEvent == 2)
		{
			if(pXP->m_bMouseDownArrowForback)
			{
				SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_LINEUP,0),(LPARAM)hWnd);
			}
			else if(pXP->m_bMouseDownArrowForwad)
			{
				SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_LINEDOWN,0),(LPARAM)hWnd);
			}
		}
		else if(nIDEvent == 1)
		{
//			CPoint point;
			GetCursorPos(&point);
			ScreenToClient(hWnd, &point);
			if(!PtInRect(&pXP->m_ThumbRect,point))
			{
				if(pXP->m_bMouseDownArrowForback)
				{
					SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_PAGEUP,0),(LPARAM)hWnd);
				}
				else if(pXP->m_bMouseDownArrowForwad)
				{
					SendMessage(hParent,WM_VSCROLL,MAKEWPARAM(SB_PAGEDOWN,0),(LPARAM)hWnd);
				}
			}
		}
	}
	else
	{
		if(nIDEvent == 2)
		{
			if(pXP->m_bMouseDownArrowForback)
			{
				SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_LINELEFT,0),(LPARAM)hWnd);
			}
			else if(pXP->m_bMouseDownArrowForwad)
			{
				SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_LINERIGHT,0),(LPARAM)hWnd);
			}
		}
		else if(nIDEvent == 1)
		{
			//CPoint point;
			GetCursorPos(&point);
			ScreenToClient(hWnd, &point);
			if(!PtInRect(&pXP->m_ThumbRect,point))
			{
				if(pXP->m_bMouseDownArrowForback)
				{
					SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_PAGELEFT,0),(LPARAM)hWnd);
				}
				else if(pXP->m_bMouseDownArrowForwad)
				{
					SendMessage(hParent,WM_HSCROLL,MAKEWPARAM(SB_PAGERIGHT,0),(LPARAM)hWnd);
				}
			}
		}
	}
*/
}

void ScrollOnPaint(PCLASSXP pCxp)
{
	//CPaintDC dc(this); 
	//HDC hDC = GetDC(pCxp->hWnd);
	DWORD dwStyle = (DWORD)GetWindowLong(pCxp->hWnd, GWL_STYLE);
	if( (dwStyle & SBS_VERT) == SBS_VERT)
	{
		ScrollDrawVertical(pCxp, SCROLLALL); //全部
	}
	else
	{
		ScrollDrawHorizontal(pCxp, SCROLLALL); //全部
	}
	//ReleaseDC(pCxp->hWnd,hDC);
}
/////////////////////////////////////////////////////////////
void ScrollOnLButtonDblClk(PCLASSXP pCxp,WPARAM wParam, LPARAM lParam)
//UINT nFlags, CPoint point
{
	ScrollOnLButtonDown(pCxp,wParam,lParam);
	ScrollOnLButtonUp(pCxp,wParam,lParam);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
LRESULT ScrollWindowProc(PCLASSXP pCxp, UINT message,WPARAM wParam, LPARAM lParam)
{
	LONG lReturn;
	HWND hWnd = pCxp->hWnd;
	switch (message)
		{
	     case WM_LBUTTONDBLCLK :
		     ScrollOnLButtonDblClk(pCxp, wParam,lParam);
			 return 0;
	    case WM_LBUTTONDOWN: //11
		     ScrollOnLButtonDown(pCxp, wParam,lParam);
			 return 0;
	    case WM_LBUTTONUP: //11
		     ScrollOnLButtonUp(pCxp, wParam,lParam);
			 return 0;
	    case WM_MOUSEMOVE: //12
		     ScrollOnMouseMove(pCxp, wParam,lParam);
			 return 0;
        case WM_ERASEBKGND:
			return TRUE;
		case WM_TIMER:
			ScrollOnTimer(pCxp, (UINT )wParam);
			lReturn = DefWindowProc(hWnd, message, wParam, lParam);
			return lReturn;
			break;
	    case WM_NCPAINT:  
		    return 0;
		case WM_PAINT:
			lReturn = DefWindowProc(hWnd, message, wParam, lParam);
			ScrollOnPaint(pCxp);
			return lReturn;
		}
	
	// 调用原来的回调函数
	lReturn = (LONG) CallWindowProc(pCxp->wpPrev, hWnd, message, wParam, lParam);
	if (message == WM_NCDESTROY)		// 窗口销毁
		DeleteClassXP(hWnd);
	return lReturn;
}
//尾部
#ifdef __cplusplus
}
#endif // __cplusplus
/*****************************************************************/