Font Constructor(Font,Single)

In This Topic

Initializes a new Font object from the specified Font object and special style

Syntax

Visual Basic
C#

'Declaration
 
Public Function New( _
   ByVal font As Font, _
   ByVal size As Single _
)

public Font( 
   Font font,
   float size
)

Parameters

font: Special Font from which is used to create new font
size: The size of the new Font object.

Remarks

this is used to create a new Font from template font which is given by parameter Font, the parameter size show you a chance to redefine the Size.

if you want to zoom Size, you can get the size from your template font, and multiply it with the zoom factor you expected, which a new size you will got, for example named new size variable newSize, then use this constructor to create new Font: Font newFont = new Font(templateFont, newSize);

This is a simple WinForm program which draw two line text on special position of form. The first line, a string was drawed with winForm default font: Microsoft Sans Serif, 8.25pt, The second line, a sting was drawed with Font whic size is as twice as fiest line

public class TestForm : Form { protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); IntPtr hDc = e.Graphics.GetHdc(); // create a font from default Form.Font (Microsoft Sans Serif, 8.25pt), size = 8.25 Gdi.Font font = new Gdi.Font(this.Font); IntPtr oldFont = SelectObject(hDc, font.Handle); string test1 = "1. This is drawing by GDI with GdiFont"; TextOut(hDc, 50, 50, test1, test1.Length); SelectObject(hDc, oldFont); // here I want to a font which size is as twice as current's Drawing.Gdi.Font font2 = new Drawing.Gdi.Font(font, 2 * font.Size); oldFont = SelectObject(hDc, font2.Handle); string test2 = "2. This is drawing by GDI with GdiFont"; TextOut(hDc, 50, 100, test2, test2.Length); font.Dispose(); font2.Dispose(); SelectObject(hDc, oldFont); e.Graphics.ReleaseHdc(hDc); } [DllImport("gdi32.dll", EntryPoint = "SelectObject")] public static extern IntPtr SelectObject( IntPtr hdc, IntPtr hObject ); [DllImport("gdi32.dll", EntryPoint = "TextOut")] public static extern int TextOut( IntPtr hdc, int x, int y, string lpString, int nCount ); }

Example

public class TestForm : Form 
{
   protected override void OnPaint(PaintEventArgs e)
   {
     base.OnPaint(e);
            
     IntPtr hDc = e.Graphics.GetHdc();
     // create a font from default Form.Font (Microsoft Sans Serif, 8.25pt), size = 8.25
     Gdi.Font font = new Gdi.Font(this.Font);
     IntPtr oldFont = SelectObject(hDc, font.Handle);
     string test1 = "1. This is drawing by GDI with GdiFont";
     TextOut(hDc, 50, 50, test1, test1.Length);
     SelectObject(hDc, oldFont);
            
     // here I want to a font which size is as twice as current's
     Drawing.Gdi.Font font2 = new Drawing.Gdi.Font(font, 2 * font.Size);
     oldFont = SelectObject(hDc, font2.Handle);
     string test2 = "2. This is drawing by GDI with GdiFont";
     TextOut(hDc, 50, 100, test2, test2.Length);
     font.Dispose();
     font2.Dispose();
     SelectObject(hDc, oldFont);
     e.Graphics.ReleaseHdc(hDc);
   }
             
   [DllImport("gdi32.dll", EntryPoint = "SelectObject")]
   public static extern IntPtr SelectObject(
        IntPtr hdc,
        IntPtr hObject
        );
            
   [DllImport("gdi32.dll", EntryPoint = "TextOut")]
   public static extern int TextOut(
        IntPtr hdc,
        int x,
        int y,
        string lpString,
        int nCount
    );
}

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Font Class
Font Members
Overload List

Product Support Forum | Print this page