shiun-chih's 垃圾桶: [VC(Visual C++) ]- 修改顯示器解析度

[VC(Visual C++) ]- 修改顯示器解析度

本篇分享修改顯示器解析度範例，有興趣的(C/P)同好，歡迎來http://filemarkets.com/file/jashliao/c8fa8f5d/索取，因為我不會上傳檔案分享哈哈 ^ ^。

主要程式碼

001    // ChangeDisplayDlg.cpp : implementation file

002    //

004    #include "stdafx.h"

005    #include "ChangeDisplay.h"

006    #include "ChangeDisplayDlg.h"

008    #ifdef _DEBUG

009    #definenew DEBUG_NEW

010    #undef THIS_FILE

011    staticchar THIS_FILE[] = __FILE__;

012    #endif

014    /////////////////////////////////////////////////////////////////////////////

015    // CAboutDlg dialog used for App About

017    class CAboutDlg : public CDialog

018    {

019    public:

020        CAboutDlg();

022    // Dialog Data

023        //{{AFX_DATA(CAboutDlg)

024        enum { IDD = IDD_ABOUTBOX };

025        //}}AFX_DATA

027        // ClassWizard generated virtual function overrides

028        //{{AFX_VIRTUAL(CAboutDlg)

029        protected:

030        virtualvoid DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

031        //}}AFX_VIRTUAL

033    // Implementation

034    protected:

035        //{{AFX_MSG(CAboutDlg)

036        //}}AFX_MSG

037        DECLARE_MESSAGE_MAP()

038    };

040    CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)

041    {

042        //{{AFX_DATA_INIT(CAboutDlg)

043        //}}AFX_DATA_INIT

044    }

046    void CAboutDlg::DoDataExchange(CDataExchange* pDX)

047    {

048        CDialog::DoDataExchange(pDX);

049        //{{AFX_DATA_MAP(CAboutDlg)

050        //}}AFX_DATA_MAP

051    }

053    BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)

054        //{{AFX_MSG_MAP(CAboutDlg)

055            // No message handlers

056        //}}AFX_MSG_MAP

057    END_MESSAGE_MAP()

059    /////////////////////////////////////////////////////////////////////////////

060    // CChangeDisplayDlg dialog

062    CChangeDisplayDlg::CChangeDisplayDlg(CWnd* pParent /*=NULL*/)

063        : CDialog(CChangeDisplayDlg::IDD, pParent)

064    {

065        //{{AFX_DATA_INIT(CChangeDisplayDlg)

066        m_nWidthPixels = 1024;

067        m_nHeightPixels = 768;

068        m_nBitsPerPixel = 32;

069        //}}AFX_DATA_INIT

070        // Note that LoadIcon does not require a subsequent DestroyIcon in Win32

071        m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

072    }

074    void CChangeDisplayDlg::DoDataExchange(CDataExchange* pDX)

075    {

076        CDialog::DoDataExchange(pDX);

077        //{{AFX_DATA_MAP(CChangeDisplayDlg)

078        DDX_Text(pDX, IDC_EDIT1, m_nWidthPixels);

079        DDX_Text(pDX, IDC_EDIT2, m_nHeightPixels);

080        DDX_Text(pDX, IDC_EDIT3, m_nBitsPerPixel);

081        //}}AFX_DATA_MAP

082    }

084    BEGIN_MESSAGE_MAP(CChangeDisplayDlg, CDialog)

085        //{{AFX_MSG_MAP(CChangeDisplayDlg)

086        ON_WM_SYSCOMMAND()

087        ON_WM_PAINT()

088        ON_WM_QUERYDRAGICON()

089        ON_BN_CLICKED(IDC_BUTTON1, OnButton1)

090        //}}AFX_MSG_MAP

091    END_MESSAGE_MAP()

093    /////////////////////////////////////////////////////////////////////////////

094    // CChangeDisplayDlg message handlers

096    BOOL CChangeDisplayDlg::OnInitDialog()

097    {

098        CDialog::OnInitDialog();

100        // Add "About..." menu item to system menu.

102        // IDM_ABOUTBOX must be in the system command range.

103        ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);

104        ASSERT(IDM_ABOUTBOX < 0xF000);

106        CMenu* pSysMenu = GetSystemMenu(FALSE);

107        if (pSysMenu != NULL)

108        {

109            CString strAboutMenu;

110            strAboutMenu.LoadString(IDS_ABOUTBOX);

111            if (!strAboutMenu.IsEmpty())

112            {

113                pSysMenu->AppendMenu(MF_SEPARATOR);

114                pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);

115            }

116        }

118        // Set the icon for this dialog.  The framework does this automatically

119        //  when the application's main window is not a dialog

120        SetIcon(m_hIcon, TRUE);            // Set big icon

121        SetIcon(m_hIcon, FALSE);        // Set small icon

123        // TODO: Add extra initialization here

125        return TRUE;  // return TRUE  unless you set the focus to a control

126    }

128    void CChangeDisplayDlg::OnSysCommand(UINT nID, LPARAM lParam)

129    {

130        if ((nID & 0xFFF0) == IDM_ABOUTBOX)

131        {

132            CAboutDlg dlgAbout;

133            dlgAbout.DoModal();

134        }

135        else

136        {

137            CDialog::OnSysCommand(nID, lParam);

138        }

139    }

141    // If you add a minimize button to your dialog, you will need the code below

142    //  to draw the icon.  For MFC applications using the document/view model,

143    //  this is automatically done for you by the framework.

145    void CChangeDisplayDlg::OnPaint()

146    {

147        if (IsIconic())

148        {

149            CPaintDC dc(this); // device context for painting

151            SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

153            // Center icon in client rectangle

154            int cxIcon = GetSystemMetrics(SM_CXICON);

155            int cyIcon = GetSystemMetrics(SM_CYICON);

156            CRect rect;

157            GetClientRect(&rect);

158            int x = (rect.Width() - cxIcon + 1) / 2;

159            int y = (rect.Height() - cyIcon + 1) / 2;

161            // Draw the icon

162            dc.DrawIcon(x, y, m_hIcon);

163        }

164        else

165        {

166            CDialog::OnPaint();

167        }

168    }

170    // The system calls this to obtain the cursor to display while the user drags

171    //  the minimized window.

172    HCURSOR CChangeDisplayDlg::OnQueryDragIcon()

173    {

174        return (HCURSOR) m_hIcon;

175    }

177    void CChangeDisplayDlg::OnButton1()

178    {

179        // TODO: Add your control notification handler code here

180        UpdateData(TRUE);

181        DEVMODE lpDevMode;

182        lpDevMode.dmBitsPerPel = m_nBitsPerPixel;

183        lpDevMode.dmPelsWidth = m_nWidthPixels;

184        lpDevMode.dmPelsHeight = m_nHeightPixels;

185        lpDevMode.dmSize = sizeof(lpDevMode);

186        lpDevMode.dmFields = DM_PELSWIDTH|DM_PELSHEIGHT|DM_BITSPERPEL;

187        LONG result = ChangeDisplaySettings(&lpDevMode,0);

188        if(result == DISP_CHANGE_SUCCESSFUL)

189        {

190            MessageBox("修改成功");

191            ChangeDisplaySettings(&lpDevMode,CDS_UPDATEREGISTRY);

192            //使用CDS_UPDATEREGISTRY表示次修改是持久的,

193            //並在註冊表中寫入了相關的資料

194        }

195        else

196        {

197            MessageBox("修改失敗，恢復原有設置");

198            ChangeDisplaySettings(NULL,0);

199        }

200    }

shiun-chih's 垃圾桶

2012年3月28日星期三

[VC(Visual C++) ]- 修改顯示器解析度

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2012年3月28日 星期三

[VC(Visual C++) ]- 修改顯示器解析度

沒有留言:

張貼留言

2012年3月28日星期三