How to set font for single control in Dialog?

Question

Hello everybody,

I cannot set the font size for a single control in a Dialog

Please help me.

Greetings

Answer 1

Hello,

thank you for intervention. I am using MFC with c++ language. Rather than windows forms I am using Dialogs.

I learned that to set font size for single controI I need write some rows of code.

Yes WM_SETFONT, but how? I attempted more than one approach but unsuccessfully.

Answer 2

I have looked at 'change font for edit control', but my problem is not solved. Probably I need more explanation. I am a newbie of c++. Excuse me!

Answer 3

The following example is a dialog that contains two edit controls. The example creates a larger font than the dialog is using and has the second edit control use the larger font. The work is in the CMFCFontSizeDlg::OnInitDialog function.

Example Dialog -

Header file for dialog class -

// MFCFontSizeDlg.h : header file
//

#pragma once


// CMFCFontSizeDlg dialog
class CMFCFontSizeDlg : public CDialogEx
{
// Construction
public:
    CMFCFontSizeDlg(CWnd* pParent = nullptr);	// standard constructor

// Dialog Data
#ifdef AFX_DESIGN_TIME
    enum { IDD = IDD_MFCFONTSIZE_DIALOG };
#endif

    protected:
    virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support


// Implementation
protected:
    HICON m_hIcon;

    // Generated message map functions
    virtual BOOL OnInitDialog();
    afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
    afx_msg void OnPaint();
    afx_msg HCURSOR OnQueryDragIcon();
    DECLARE_MESSAGE_MAP()
public:
    CString m_str1;
    CString m_str2;
    CEdit m_Edit1;
    CEdit m_Edit2;
    CFont m_NewFont;
};

Dialog class .cpp file -

// MFCFontSizeDlg.cpp : implementation file
//

#include "pch.h"
#include "framework.h"
#include "MFCFontSize.h"
#include "MFCFontSizeDlg.h"
#include "afxdialogex.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg dialog used for App About

class CAboutDlg : public CDialogEx
{
public:
    CAboutDlg();

// Dialog Data
#ifdef AFX_DESIGN_TIME
    enum { IDD = IDD_ABOUTBOX };
#endif

    protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
    DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CMFCFontSizeDlg dialog



CMFCFontSizeDlg::CMFCFontSizeDlg(CWnd* pParent /*=nullptr*/)
    : CDialogEx(IDD_MFCFONTSIZE_DIALOG, pParent)
{
    m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
    m_str1 = _T("This is string 1");
    m_str2 = _T("This is string 2");
}

void CMFCFontSizeDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialogEx::DoDataExchange(pDX);
    DDX_Control(pDX, IDC_EDIT1, m_Edit1);
    DDX_Control(pDX, IDC_EDIT2, m_Edit2);
    DDX_Text(pDX, IDC_EDIT1, m_str1);
    DDX_Text(pDX, IDC_EDIT2, m_str2);
}

BEGIN_MESSAGE_MAP(CMFCFontSizeDlg, CDialogEx)
    ON_WM_SYSCOMMAND()
    ON_WM_PAINT()
    ON_WM_QUERYDRAGICON()
END_MESSAGE_MAP()


// CMFCFontSizeDlg message handlers

BOOL CMFCFontSizeDlg::OnInitDialog()
{
    CDialogEx::OnInitDialog();

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

    // IDM_ABOUTBOX must be in the system command range.
    ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
    ASSERT(IDM_ABOUTBOX < 0xF000);

    CMenu* pSysMenu = GetSystemMenu(FALSE);
    if (pSysMenu != nullptr)
    {
        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);
        }
    }

    // Set the icon for this dialog.  The framework does this automatically
    //  when the application's main window is not a dialog
    SetIcon(m_hIcon, TRUE);			// Set big icon
    SetIcon(m_hIcon, FALSE);		// Set small icon

    // TODO: Add extra initialization here

    LOGFONT lf{};
    CFont* pFont = m_Edit2.GetFont(); // Get initial font
    pFont->GetLogFont(&lf); // Use LOGFONT to get font information
    lf.lfHeight = 120; // Use to create 12 point font
    m_NewFont.CreatePointFontIndirect(&lf); // Create a 12 point font
    m_Edit2.SetFont(&m_NewFont, TRUE); // Have edit control use the 12 point font

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

void CMFCFontSizeDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
    if ((nID & 0xFFF0) == IDM_ABOUTBOX)
    {
        CAboutDlg dlgAbout;
        dlgAbout.DoModal();
    }
    else
    {
        CDialogEx::OnSysCommand(nID, lParam);
    }
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CMFCFontSizeDlg::OnPaint()
{
    if (IsIconic())
    {
        CPaintDC dc(this); // device context for painting

        SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

        // Center icon in client rectangle
        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;

        // Draw the icon
        dc.DrawIcon(x, y, m_hIcon);
    }
    else
    {
        CDialogEx::OnPaint();
    }
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMFCFontSizeDlg::OnQueryDragIcon()
{
    return static_cast<HCURSOR>(m_hIcon);
}

Answer 4

Hello RLWA32,

thank you for support.

I've followed your post. But 'm getting a lot of errors. Perhaps I didn't understand your suggestions.

Answer 5

Hello Minxin Yu,

I followed your suggestions, but encountered a lot of errors