LogFontとは？ わかりやすく解説

Public Class LogFont

Dim instance As LogFont

public class LogFont

public ref class LogFont

public class LogFont

public class LogFont

Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports Microsoft.WindowsCE.Forms



Public Class Form1
    Inherits System.Windows.Forms.Form
    ' Sets screen resolution for targeted device.
    ' If used on high resolution devices with a
    ' DPI of 192, the font will be scaled accordingly.
    Private Const DPISETTING As
 Integer = 96
    
    Private rotatedFont As Font
    Private redBrush As SolidBrush
    
    
    Public Sub New() 
        ' Display OK button to close application.
        Me.MinimizeBox = False
        Me.Text = "Rotated Font"
        
        ' Create Font and Brush objects in the constructor,
        ' so they can be resued when the form is repainted.
        Me.rotatedFont = CreateRotatedFont("Tahoma",
 45)
        Me.redBrush = New SolidBrush(Color.Red)
    
    End Sub
    
    
    ' Create an rotated font using a LOGFONT structure.
    Function CreateRotatedFont(ByVal fontname
 As String, ByVal angleInDegrees
 As Integer) As Font 
        Dim lf As New LogFont()
        
        ' Create graphics object for the form.
        Dim g As Graphics = Me.CreateGraphics()
        
        ' Scale a 12 point font for current screen DPI.
        lf.Height = Fix(- 16F * g.DpiY / DPISETTING)
        
        ' Convert rotation angle to tenths of degrees.
        lf.Escapement = angleInDegrees * 10
        
        ' Orientation is the same as
        ' Escapement in mobile platforms.
        lf.Orientation = lf.Escapement
        
        lf.Width = 0
        lf.Weight = 0
        lf.Italic = 0
        lf.Underline = 0
        lf.StrikeOut = 0
        lf.CharSet = LogFontCharSet.Default
        lf.OutPrecision = LogFontPrecision.Default
        lf.ClipPrecision = LogFontClipPrecision.Default
        lf.Quality = LogFontQuality.ClearType
        lf.PitchAndFamily = LogFontPitchAndFamily.Default
        lf.FaceName = fontname
        
        Return System.Drawing.Font.FromLogFont(lf)

        ' Explicitly dispose any drawing objects created.
        g.Dispose()
        
    
    End Function
    
    
    Protected Overrides Sub
 OnPaint(ByVal e As PaintEventArgs) 
        If Me.rotatedFont Is
 Nothing Then
            Return
        End If 
        ' Draw the text to the screen using the LogFont
        ' Starting at specified coordinates on the screen.
        e.Graphics.DrawString("abc ABC 123", Me.rotatedFont,
 Me.redBrush, 10, 125, New StringFormat(StringFormatFlags.NoWrap
 Or StringFormatFlags.NoClip))
    
    End Sub
    
    
    Protected Overrides Sub
 Dispose(ByVal disposing As Boolean)
 
        MyBase.Dispose(disposing)
        
        ' Dispose created graphic objects.
        ' Although disposed by the Garbage
        ' Collector when the application
        ' terminates, a good practice is to dispose
        ' them when they are no longer needed.
        Me.redBrush.Dispose()
        Me.rotatedFont.Dispose()
    
    End Sub
    
    
    Shared Sub Main() 
        Application.Run(New Form1())
    
    End Sub
End Class

using System;
using System.Drawing;
using System.Windows.Forms;
using Microsoft.WindowsCE.Forms;

namespace LogFontDemo
{
    public class Form1 : System.Windows.Forms.Form
    {
        // Sets screen resolution for targeted device.
        // If used on high resolution devices with a
        // DPI of 192, the font will be scaled accordingly.
        const int DPISETTING = 96;

        Font rotatedFont;
        SolidBrush redBrush;

        public Form1()
        {
            // Display OK button to close application.
            this.MinimizeBox = false;
            this.Text = "Rotated Font";

            // Create Font and Brush objects in the constructor,
            // so they can be resued when the form is repainted.
            this.rotatedFont = CreateRotatedFont("Tahoma",
 45);
            this.redBrush    = new SolidBrush(Color.Red);
        }

        // Create an rotated font using a LOGFONT structure.
        Font CreateRotatedFont(string fontname, int
 angleInDegrees)
        {
            LogFont lf = new LogFont();

            // Create graphics object for the form.
            Graphics g = this.CreateGraphics();

            // Scale a 12 point font for current screen DPI.
            lf.Height = (int)(-16f * g.DpiY / DPISETTING);

            // Convert rotation angle to tenths of degrees.
            lf.Escapement = angleInDegrees * 10;

            // Orientation is the same as
            // Escapementin mobile platforms.
            lf.Orientation = lf.Escapement;

            lf.Width     = 0;
            lf.Weight    = 0;
            lf.Italic    = 0;
            lf.Underline = 0;
            lf.StrikeOut = 0;
            lf.CharSet        = LogFontCharSet.Default;
            lf.OutPrecision   = LogFontPrecision.Default;
            lf.ClipPrecision  = LogFontClipPrecision.Default;
            lf.Quality        = LogFontQuality.ClearType;
            lf.PitchAndFamily = LogFontPitchAndFamily.Default;
            lf.FaceName       = fontname;

            return Font.FromLogFont(lf);

            // Explicitly dispose any drawing objects created.
            g.Dispose();

        }

        protected override void OnPaint(PaintEventArgs
 e)
        {
            if(this.rotatedFont == null)
                return;

            // Draw the text to the screen using the LogFont
            // Starting at specified coordinates on the screen.
            e.Graphics.DrawString("abc ABC 123",
                this.rotatedFont,
                this.redBrush,
                10,
                125,
                new StringFormat(StringFormatFlags.NoWrap |
                     StringFormatFlags.NoClip));
        }

        protected override void Dispose(bool
 disposing)
        {
            base.Dispose(disposing);

            // Dispose created graphic objects.
            // Although disposed by the Garbage
            // Collector when the application
            // terminates, a good practice is to dispose
            // them when they are no longer needed.
            this.redBrush.Dispose();
            this.rotatedFont.Dispose();
        }

        static void Main()
        {
            Application.Run(new Form1());
        }
    }
}

Public Sub New

Dim instance As New LogFont

public LogFont ()

public:
LogFont ()

public LogFont ()

public function LogFont ()