MFC_CSliderCtrl

MFC 类CSliderCtrl
常用成员函数
SetLineSize() GetLineSize()
SetPageSize() GetPageSize()
SetRangeMax() GetRangeMax()
SetRangeMin() GetRangeMin()
SetRange() GetRange()
SetPose() GetPos()
1.开始工作吧
添加滑块控件-控件变量，添加静态文本框–
2.初始化对话框函数，初始化控件

OnInitDialog(){...    SetDlgItemText(IDC_STATIC_POS,_T("50")); //静态文本显示数值    m_slider.SetRange(0,100);                //设置范围    m_slider.SetPos(50);                     //设置初始位置}

3.添加滑块拖动消息处理函数。“NM_CUSTOMDRAW”

void Clb011Dlg::OnNMCustomdrawSlider(NMHDR *pNMHDR, LRESULT *pResult){    LPNMCUSTOMDRAW pNMCD = reinterpret_cast<LPNMCUSTOMDRAW>(pNMHDR);    // TODO: 在此添加控件通知处理程序代码    //*pResult = 0;    int nPos = m_slider.GetPos();    CString strText;    strText.Format(_T("滑块%d"),nPos);    SetDlgItemText(IDC_STATIC_POS,strText);//实时显示滑块位置}

Dlg.cpp

// lb011Dlg.cpp : 实现文件//#include "stdafx.h"#include "lb011.h"#include "lb011Dlg.h"#include "afxdialogex.h"#ifdef _DEBUG#define new DEBUG_NEW#endif// 用于应用程序“关于”菜单项的 CAboutDlg 对话框class CAboutDlg : public CDialogEx{public:    CAboutDlg();// 对话框数据    enum { IDD = IDD_ABOUTBOX };    protected:    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持// 实现protected:    DECLARE_MESSAGE_MAP()};CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD){}void CAboutDlg::DoDataExchange(CDataExchange* pDX){    CDialogEx::DoDataExchange(pDX);}BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)END_MESSAGE_MAP()// Clb011Dlg 对话框Clb011Dlg::Clb011Dlg(CWnd* pParent /*=NULL*/)    : CDialogEx(Clb011Dlg::IDD, pParent){    m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);}void Clb011Dlg::DoDataExchange(CDataExchange* pDX){    CDialogEx::DoDataExchange(pDX);    DDX_Control(pDX, IDC_SLIDER, m_slider);}BEGIN_MESSAGE_MAP(Clb011Dlg, CDialogEx)    ON_WM_SYSCOMMAND()    ON_WM_PAINT()    ON_WM_QUERYDRAGICON()    ON_NOTIFY(NM_CUSTOMDRAW, IDC_SLIDER, &Clb011Dlg::OnNMCustomdrawSlider)END_MESSAGE_MAP()// Clb011Dlg 消息处理程序BOOL Clb011Dlg::OnInitDialog(){    CDialogEx::OnInitDialog();    // 将“关于...”菜单项添加到系统菜单中。    // IDM_ABOUTBOX 必须在系统命令范围内。    ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);    ASSERT(IDM_ABOUTBOX < 0xF000);    CMenu* pSysMenu = GetSystemMenu(FALSE);    if (pSysMenu != NULL)    {        BOOL bNameValid;        CString strAboutMenu;        bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);        ASSERT(bNameValid);        if (!strAboutMenu.IsEmpty())        {            pSysMenu->AppendMenu(MF_SEPARATOR);            pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);        }    }    // 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动    //  执行此操作    SetIcon(m_hIcon, TRUE);         // 设置大图标    SetIcon(m_hIcon, FALSE);        // 设置小图标    // TODO: 在此添加额外的初始化代码    //添加吧    SetDlgItemText(IDC_STATIC_POS,_T("50"));    m_slider.SetRange(0,100);    m_slider.SetPos(50);    return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE}void Clb011Dlg::OnSysCommand(UINT nID, LPARAM lParam){    if ((nID & 0xFFF0) == IDM_ABOUTBOX)    {        CAboutDlg dlgAbout;        dlgAbout.DoModal();    }    else    {        CDialogEx::OnSysCommand(nID, lParam);    }}// 如果向对话框添加最小化按钮，则需要下面的代码//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，//  这将由框架自动完成。void Clb011Dlg::OnPaint(){    if (IsIconic())    {        CPaintDC dc(this); // 用于绘制的设备上下文        SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);        // 使图标在工作区矩形中居中        int cxIcon = GetSystemMetrics(SM_CXICON);        int cyIcon = GetSystemMetrics(SM_CYICON);        CRect rect;        GetClientRect(&rect);        int x = (rect.Width() - cxIcon + 1) / 2;        int y = (rect.Height() - cyIcon + 1) / 2;        // 绘制图标        dc.DrawIcon(x, y, m_hIcon);    }    else    {        CDialogEx::OnPaint();    }}//当用户拖动最小化窗口时系统调用此函数取得光标//显示。HCURSOR Clb011Dlg::OnQueryDragIcon(){    return static_cast<HCURSOR>(m_hIcon);}void Clb011Dlg::OnNMCustomdrawSlider(NMHDR *pNMHDR, LRESULT *pResult){    LPNMCUSTOMDRAW pNMCD = reinterpret_cast<LPNMCUSTOMDRAW>(pNMHDR);    // TODO: 在此添加控件通知处理程序代码    //*pResult = 0;    int nPos = m_slider.GetPos();    CString strText;    strText.Format(_T("滑块%d"),nPos);    SetDlgItemText(IDC_STATIC_POS,strText);//实时显示滑块位置}