C# Signature:

[DllImport("gdi32.dll")]
static extern int EnumFontFamiliesEx(IntPtr hdc, [In] ref LOGFONT lpLogfont,
   EnumFontExDelegate lpEnumFontFamExProc, IntPtr lParam, uint dwFlags);

User-Defined Types:

LOGFONT

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

C# Sample:

using System;

using System.Collections.Generic;

using System.Runtime.InteropServices;

using System.Windows.Forms;

public class Fonts

{

    private const byte DEFAULT_CHARSET = 1;
    private const byte SHIFTJIS_CHARSET = 128;
    private const byte JOHAB_CHARSET = 130;
    private const byte EASTEUROPE_CHARSET = 238;
    private const byte DEFAULT_PITCH = 0;
    private const byte FIXED_PITCH = 1;
    private const byte VARIABLE_PITCH = 2;
    private const byte FF_DONTCARE = (0 << 4);
    private const byte FF_ROMAN = (1 << 4);
    private const byte FF_SWISS = (2 << 4);
    private const byte FF_MODERN = (3 << 4);
    private const byte FF_SCRIPT = (4 << 4);
    private const byte FF_DECORATIVE = (5 << 4);

    private List<FontFamily> _fonts = new List<FontFamily>();

    public List<FontFamily> FontFamilies
    {
    get { return _fonts; }
    set { _fonts = value; }
    }

    public void GetFonts()
    {
    LOGFONT lf = CreateLogFont("");

    IntPtr plogFont = Marshal.AllocHGlobal(Marshal.SizeOf(lf));
    Marshal.StructureToPtr(lf, plogFont, true);

    int ret = 0;
    try
    {
        //If anyone knows of a better way to get the pointer please let me know
        var pictureBox = new PictureBox();
        var graphic = pictureBox.CreateGraphics();
        var ptr = graphic.GetHdc();

        del1 = new EnumFontExDelegate(callback1);
        ret = EnumFontFamiliesEx(ptr, plogFont, del1, IntPtr.Zero, 0);

        System.Diagnostics.Trace.WriteLine("EnumFontFamiliesEx = " + ret.ToString());

        graphic.ReleaseHdc(ptr);
    }
    catch
    {
        System.Diagnostics.Trace.WriteLine("Error!");
    }
    finally
    {
        Marshal.DestroyStructure(plogFont, typeof(LOGFONT));

    }
    }

    [DllImport("gdi32.dll", CharSet = CharSet.Auto)]
    static extern int EnumFontFamiliesEx(IntPtr hdc,
                [In] IntPtr pLogfont,
                EnumFontExDelegate lpEnumFontFamExProc,
                IntPtr lParam,
                uint dwFlags);

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    public class LOGFONT
    {

    public int lfHeight;
    public int lfWidth;
    public int lfEscapement;
    public int lfOrientation;
    public FontWeight lfWeight;
    [MarshalAs(UnmanagedType.U1)]
    public bool lfItalic;
    [MarshalAs(UnmanagedType.U1)]
    public bool lfUnderline;
    [MarshalAs(UnmanagedType.U1)]
    public bool lfStrikeOut;
    public FontCharSet lfCharSet;
    public FontPrecision lfOutPrecision;
    public FontClipPrecision lfClipPrecision;
    public FontQuality lfQuality;
    public FontPitchAndFamily lfPitchAndFamily;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
    public string lfFaceName;
    }

    public enum FontWeight : int
    {
    FW_DONTCARE = 0,
    FW_THIN = 100,
    FW_EXTRALIGHT = 200,
    FW_LIGHT = 300,
    FW_NORMAL = 400,
    FW_MEDIUM = 500,
    FW_SEMIBOLD = 600,
    FW_BOLD = 700,
    FW_EXTRABOLD = 800,
    FW_HEAVY = 900,
    }
    public enum FontCharSet : byte
    {
    ANSI_CHARSET = 0,
    DEFAULT_CHARSET = 1,
    SYMBOL_CHARSET = 2,
    SHIFTJIS_CHARSET = 128,
    HANGEUL_CHARSET = 129,
    HANGUL_CHARSET = 129,
    GB2312_CHARSET = 134,
    CHINESEBIG5_CHARSET = 136,
    OEM_CHARSET = 255,
    JOHAB_CHARSET = 130,
    HEBREW_CHARSET = 177,
    ARABIC_CHARSET = 178,
    GREEK_CHARSET = 161,
    TURKISH_CHARSET = 162,
    VIETNAMESE_CHARSET = 163,
    THAI_CHARSET = 222,
    EASTEUROPE_CHARSET = 238,
    RUSSIAN_CHARSET = 204,
    MAC_CHARSET = 77,
    BALTIC_CHARSET = 186,
    }
    public enum FontPrecision : byte
    {
    OUT_DEFAULT_PRECIS = 0,
    OUT_STRING_PRECIS = 1,
    OUT_CHARACTER_PRECIS = 2,
    OUT_STROKE_PRECIS = 3,
    OUT_TT_PRECIS = 4,
    OUT_DEVICE_PRECIS = 5,
    OUT_RASTER_PRECIS = 6,
    OUT_TT_ONLY_PRECIS = 7,
    OUT_OUTLINE_PRECIS = 8,
    OUT_SCREEN_OUTLINE_PRECIS = 9,
    OUT_PS_ONLY_PRECIS = 10,
    }
    public enum FontClipPrecision : byte
    {
    CLIP_DEFAULT_PRECIS = 0,
    CLIP_CHARACTER_PRECIS = 1,
    CLIP_STROKE_PRECIS = 2,
    CLIP_MASK = 0xf,
    CLIP_LH_ANGLES = (1 << 4),
    CLIP_TT_ALWAYS = (2 << 4),
    CLIP_DFA_DISABLE = (4 << 4),
    CLIP_EMBEDDED = (8 << 4),
    }
    public enum FontQuality : byte
    {
    DEFAULT_QUALITY = 0,
    DRAFT_QUALITY = 1,
    PROOF_QUALITY = 2,
    NONANTIALIASED_QUALITY = 3,
    ANTIALIASED_QUALITY = 4,
    CLEARTYPE_QUALITY = 5,
    CLEARTYPE_NATURAL_QUALITY = 6,
    }
    [Flags]
    public enum FontPitchAndFamily : byte
    {
    DEFAULT_PITCH = 0,
    FIXED_PITCH = 1,
    VARIABLE_PITCH = 2,
    FF_DONTCARE = (0 << 4),
    FF_ROMAN = (1 << 4),
    FF_SWISS = (2 << 4),
    FF_MODERN = (3 << 4),
    FF_SCRIPT = (4 << 4),
    FF_DECORATIVE = (5 << 4),
    }

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    public struct NEWTEXTMETRIC
    {
    public int tmHeight;
    public int tmAscent;
    public int tmDescent;
    public int tmInternalLeading;
    public int tmExternalLeading;
    public int tmAveCharWidth;
    public int tmMaxCharWidth;
    public int tmWeight;
    public int tmOverhang;
    public int tmDigitizedAspectX;
    public int tmDigitizedAspectY;
    public char tmFirstChar;
    public char tmLastChar;
    public char tmDefaultChar;
    public char tmBreakChar;
    public byte tmItalic;
    public byte tmUnderlined;
    public byte tmStruckOut;
    public byte tmPitchAndFamily;
    public byte tmCharSet;
    int ntmFlags;
    int ntmSizeEM;
    int ntmCellHeight;
    int ntmAvgWidth;
    }
    public struct FONTSIGNATURE
    {
    [MarshalAs(UnmanagedType.ByValArray)]
    int[] fsUsb;
    [MarshalAs(UnmanagedType.ByValArray)]
    int[] fsCsb;
    }
    public struct NEWTEXTMETRICEX
    {
    NEWTEXTMETRIC ntmTm;
    FONTSIGNATURE ntmFontSig;
    }

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    public struct ENUMLOGFONTEX
    {
    public LOGFONT elfLogFont;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
    public string elfFullName;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
    public string elfStyle;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
    public string elfScript;
    }

    public delegate int EnumFontExDelegate(ref ENUMLOGFONTEX lpelfe, ref NEWTEXTMETRICEX lpntme, int FontType, int lParam);
    public EnumFontExDelegate del1;

    public int callback1(ref ENUMLOGFONTEX lpelfe, ref NEWTEXTMETRICEX lpntme, int FontType, int lParam)
    {
    try
    {
        FontType fontType;
        if (FontType == 2 || FontType == 4)
        {
        fontType = (ClientTools.Fonts.FontType)FontType;
        }
        else
        {
        fontType = ClientTools.Fonts.FontType.Unknown;
        }

        FontFamilies.Add(new FontFamily(lpelfe.elfFullName, fontType));
    }
    catch (Exception e)
    {
        System.Diagnostics.Trace.WriteLine(e.ToString());
    }
    return 1;
    }

    public static LOGFONT CreateLogFont(string fontname)
    {
    LOGFONT lf = new LOGFONT();
    lf.lfHeight = 0;
    lf.lfWidth = 0;
    lf.lfEscapement = 0;
    lf.lfOrientation = 0;
    lf.lfWeight = 0;
    lf.lfItalic = false;
    lf.lfUnderline = false;
    lf.lfStrikeOut = false;
    lf.lfCharSet = FontCharSet.DEFAULT_CHARSET;
    lf.lfOutPrecision = 0;
    lf.lfClipPrecision = 0;
    lf.lfQuality = 0;
    lf.lfPitchAndFamily = FontPitchAndFamily.FF_DONTCARE;
    lf.lfFaceName = "";

    return lf;
    }

}

public class FontFamily

{

    public string FontName { get; set; }

    public FontType FontType { get; set; }

    public FontFamily(string fontName, FontType fontType)
    {
    FontName = fontName;
    FontType = fontType;
    }

}

public enum FontType

{

    Unknown = 1,
    TrueType = 4,
    PostScript = 2

}

Alternative Managed API:

Do you know one? Please contribute it!

Please edit this page!

Do you have...

• helpful tips or sample code to share for using this API in managed code?
• corrections to the existing content?
• variations of the signature you want to share?
• additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).