// MySlider.cpp : 实现文件
//

#include "stdafx.h"
#include "ExtendSliderCtrl.h"


// CMySlider

IMPLEMENT_DYNAMIC(CExtendSliderCtrl, CSliderCtrl)

CExtendSliderCtrl::CExtendSliderCtrl()
{

}

CExtendSliderCtrl::~CExtendSliderCtrl()
{
}


BEGIN_MESSAGE_MAP(CExtendSliderCtrl, CSliderCtrl)
	ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()



// CMySlider 消息处理程序
void CExtendSliderCtrl::OnLButtonDown(UINT nFlags, CPoint point)
{
	// TODO: 在此添加消息处理程序代码和/或调用默认值
 	CSliderCtrl::OnLButtonDown(nFlags, point);

	CRect rectClient, rectChannel;
	GetClientRect(rectClient);
	GetChannelRect(rectChannel);

	int nMax = 0;
	int nMin = 0;

	GetRange(nMin, nMax);

	int nPos = (nMax - nMin) * (point.x - rectClient.left - rectChannel.left) / (rectChannel.right - rectChannel.left);

	// 移动到鼠标位置
	SetPos(nPos);
}