Vanara/PInvoke/Shared/WinGdi/WinGdi.LOGFONT.cs

428 lines
17 KiB
C#

using System;
using System.Runtime.InteropServices;
namespace Vanara.PInvoke
{
/// <summary>
/// Font families describe the look of a font in a general way. They are intended for specifying fonts when the exact typeface desired is
/// not available.
/// </summary>
[PInvokeData("Wingdi.h", MSDNShortId = "dd145037")]
public enum FontFamily : byte
{
/// <summary>Use default font.</summary>
FF_DONTCARE = 0 << 4,
/// <summary>Fonts with variable stroke width (proportional) and with serifs. MS Serif is an example.</summary>
FF_ROMAN = 1 << 4,
/// <summary>Fonts with variable stroke width (proportional) and without serifs. MS Sans Serif is an example.</summary>
FF_SWISS = 2 << 4,
/// <summary>
/// Fonts with constant stroke width (monospace), with or without serifs. Monospace fonts are usually modern. Pica, Elite, and
/// CourierNew are examples.
/// </summary>
FF_MODERN = 3 << 4,
/// <summary>Fonts designed to look like handwriting. Script and Cursive are examples.</summary>
FF_SCRIPT = 4 << 4,
/// <summary>Novelty fonts. Old English is an example.</summary>
FF_DECORATIVE = 5 << 4,
}
/// <summary>Specifies information about the pitch, the technology, and the family of a physical font.</summary>
[PInvokeData("Wingdi.h", MSDNShortId = "dd145037")]
[Flags]
public enum FontPitch : byte
{
/// <summary>The default pitch, which is implementation-dependent.</summary>
DEFAULT_PITCH = 0,
/// <summary>A fixed pitch, which means that all the characters in the font occupy the same width when output in a string.</summary>
FIXED_PITCH = 1,
/// <summary>
/// A variable pitch, which means that the characters in the font occupy widths that are proportional to the actual widths of the
/// glyphs when output in a string. For example, the "i" and space characters usually have much smaller widths than a "W" or "O" character.
/// </summary>
VARIABLE_PITCH = 2,
/// <summary>The mono font/</summary>
MONO_FONT = 8,
/// <summary>
/// If this bit is set the font is a variable pitch font. If this bit is clear the font is a fixed pitch font. Note very carefully
/// that those meanings are the opposite of what the constant name implies.
/// </summary>
TMPF_FIXED_PITCH = 0x01,
/// <summary>If this bit is set the font is a vector font.</summary>
TMPF_VECTOR = 0x02,
/// <summary>If this bit is set the font is a TrueType font.</summary>
TMPF_TRUETYPE = 0x04,
/// <summary>If this bit is set the font is a device font.</summary>
TMPF_DEVICE = 0x08,
}
/// <summary>The character set.</summary>
[PInvokeData("Wingdi.h", MSDNShortId = "dd145037")]
public enum CharacterSet : byte
{
/// <summary>Specifies the English character set.</summary>
ANSI_CHARSET = 0,
/// <summary>
/// Specifies a character set based on the current system locale; for example, when the system locale is United States English, the
/// default character set is ANSI_CHARSET.
/// </summary>
DEFAULT_CHARSET = 1,
/// <summary>Specifies a character set of symbols.</summary>
SYMBOL_CHARSET = 2,
/// <summary>Specifies the Japanese character set.</summary>
SHIFTJIS_CHARSET = 128,
/// <summary>Specifies the Hangul Korean character set.</summary>
HANGEUL_CHARSET = 129,
/// <summary>Also spelled "Hangeul". Specifies the Hangul Korean character set.</summary>
HANGUL_CHARSET = 129,
/// <summary>Specifies the "simplified" Chinese character set for People's Republic of China.</summary>
GB2312_CHARSET = 134,
/// <summary>
/// Specifies the "traditional" Chinese character set, used mostly in Taiwan and in the Hong Kong and Macao Special Administrative Regions.
/// </summary>
CHINESEBIG5_CHARSET = 136,
/// <summary>Specifies a mapping to one of the OEM code pages, according to the current system locale setting.</summary>
OEM_CHARSET = 255,
/// <summary>Also spelled "Johap". Specifies the Johab Korean character set.</summary>
JOHAB_CHARSET = 130,
/// <summary>Specifies the Hebrew character set.</summary>
HEBREW_CHARSET = 177,
/// <summary>Specifies the Arabic character set.</summary>
ARABIC_CHARSET = 178,
/// <summary>Specifies the Greek character set.</summary>
GREEK_CHARSET = 161,
/// <summary>Specifies the Turkish character set.</summary>
TURKISH_CHARSET = 162,
/// <summary>Specifies the Vietnamese character set.</summary>
VIETNAMESE_CHARSET = 163,
/// <summary>Specifies the Thai character set.</summary>
THAI_CHARSET = 222,
/// <summary>Specifies a Eastern European character set.</summary>
EASTEUROPE_CHARSET = 238,
/// <summary>Specifies the Russian Cyrillic character set.</summary>
RUSSIAN_CHARSET = 204,
/// <summary>Specifies the Apple Macintosh character set.</summary>
MAC_CHARSET = 77,
/// <summary>Specifies the Baltic (Northeastern European) character set.</summary>
BALTIC_CHARSET = 186
}
/// <summary>The clipping precision defines how to clip characters that are partially outside the clipping region.</summary>
[PInvokeData("Wingdi.h", MSDNShortId = "dd145037")]
public enum LogFontClippingPrecision : byte
{
/// <summary>Not used.</summary>
CLIP_CHARACTER_PRECIS = 1,
/// <summary>Specifies default clipping behavior.</summary>
CLIP_DEFAULT_PRECIS = 0,
/// <summary>
/// Windows XP SP1: Turns off font association for the font. Note that this flag is not guaranteed to have any effect on any platform
/// after Windows Server 2003.
/// </summary>
CLIP_DFA_DISABLE = 4 << 4,
/// <summary>
/// Turns off font association for the font. This is identical to CLIP_DFA_DISABLE, but it can have problems in some situations; the
/// recommended flag to use is CLIP_DFA_DISABLE.
/// </summary>
CLIP_DFA_OVERRIDE = 64,
/// <summary>You must specify this flag to use an embedded read-only font.</summary>
CLIP_EMBEDDED = 8 << 4,
/// <summary>
/// When this value is used, the rotation for all fonts depends on whether the orientation of the coordinate system is left-handed or
/// right-handed. If not used, device fonts always rotate counterclockwise, but the rotation of other fonts is dependent on the
/// orientation of the coordinate system.
/// </summary>
CLIP_LH_ANGLES = 1 << 4,
/// <summary>Not used.</summary>
CLIP_MASK = 0xf,
/// <summary>
/// Not used by the font mapper, but is returned when raster, vector, or TrueType fonts are enumerated. For compatibility, this value
/// is always returned when enumerating fonts.
/// </summary>
CLIP_STROKE_PRECIS = 2,
/// <summary>Not used.</summary>
CLIP_TT_ALWAYS = 2 << 4,
}
/// <summary>
/// The output precision. The output precision defines how closely the output must match the requested font's height, width, character
/// orientation, escapement, pitch, and font type.
/// </summary>
[PInvokeData("Wingdi.h", MSDNShortId = "dd145037")]
public enum LogFontOutputPrecision : byte
{
/// <summary>Not used.</summary>
OUT_CHARACTER_PRECIS = 2,
/// <summary>Specifies the default font mapper behavior.</summary>
OUT_DEFAULT_PRECIS = 0,
/// <summary>Instructs the font mapper to choose a Device font when the system contains multiple fonts with the same name.</summary>
OUT_DEVICE_PRECIS = 5,
/// <summary>This value instructs the font mapper to choose from TrueType and other outline-based fonts.</summary>
OUT_OUTLINE_PRECIS = 8,
/// <summary>
/// Instructs the font mapper to choose from only PostScript fonts. If there are no PostScript fonts installed in the system, the
/// font mapper returns to default behavior.
/// </summary>
OUT_PS_ONLY_PRECIS = 10,
/// <summary>Instructs the font mapper to choose a raster font when the system contains multiple fonts with the same name.</summary>
OUT_RASTER_PRECIS = 6,
/// <summary>A value that specifies a preference for TrueType and other outline fonts.</summary>
OUT_SCREEN_OUTLINE_PRECIS = 9,
/// <summary>This value is not used by the font mapper, but it is returned when raster fonts are enumerated.</summary>
OUT_STRING_PRECIS = 1,
/// <summary>
/// This value is not used by the font mapper, but it is returned when TrueType, other outline-based fonts, and vector fonts are enumerated.
/// </summary>
OUT_STROKE_PRECIS = 3,
/// <summary>
/// Instructs the font mapper to choose from only TrueType fonts. If there are no TrueType fonts installed in the system, the font
/// mapper returns to default behavior.
/// </summary>
OUT_TT_ONLY_PRECIS = 7,
/// <summary>Instructs the font mapper to choose a TrueType font when the system contains multiple fonts with the same name.</summary>
OUT_TT_PRECIS = 4,
}
/// <summary>
/// The output quality defines how carefully the graphics device interface (GDI) must attempt to match the logical-font attributes to
/// those of an actual physical font.
/// </summary>
[PInvokeData("Wingdi.h", MSDNShortId = "dd145037")]
public enum LogFontOutputQuality : byte
{
/// <summary>Appearance of the font does not matter.</summary>
DEFAULT_QUALITY = 0,
/// <summary>
/// Appearance of the font is less important than when PROOF_QUALITY is used. For GDI raster fonts, scaling is enabled, which means
/// that more font sizes are available, but the quality may be lower. Bold, italic, underline, and strikeout fonts are synthesized if necessary.
/// </summary>
DRAFT_QUALITY = 1,
/// <summary>
/// Character quality of the font is more important than exact matching of the logical-font attributes. For GDI raster fonts, scaling
/// is disabled and the font closest in size is chosen. Although the chosen font size may not be mapped exactly when PROOF_QUALITY is
/// used, the quality of the font is high and there is no distortion of appearance. Bold, italic, underline, and strikeout fonts are
/// synthesized if necessary.
/// </summary>
PROOF_QUALITY = 2,
/// <summary>Font is never antialiased.</summary>
NONANTIALIASED_QUALITY = 3,
/// <summary>Font is always antialiased if the font supports it and the size of the font is not too small or too large.</summary>
ANTIALIASED_QUALITY = 4,
/// <summary>
/// If set, text is rendered (when possible) using ClearType antialiasing method. The font quality is given less importance than
/// maintaining the text size.
/// </summary>
CLEARTYPE_QUALITY = 5,
/// <summary>
/// If set, text is rendered (when possible) using ClearType antialiasing method. The font quality is given more importance than
/// maintaining the text size.
/// </summary>
CLEARTYPE_NATURAL_QUALITY = 6
}
/// <summary>The LOGFONT structure defines the attributes of a font.</summary>
[PInvokeData("Wingdi.h", MSDNShortId = "dd145037")]
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct LOGFONT
{
/// <summary>
/// The height, in logical units, of the font's character cell or character. The character height value (also known as the em height)
/// is the character cell height value minus the internal-leading value. The font mapper interprets the value specified in lfHeight
/// in the following manner.
/// <list type="table">
/// <listheader>
/// <term>Value</term>
/// <definition>Meaning</definition>
/// </listheader>
/// <item>
/// <term>&gt; 0</term>
/// <definition>The font mapper transforms this value into device units and matches it against the cell height of the available fonts.</definition>
/// </item>
/// <item>
/// <term>0</term>
/// <definition>The font mapper uses a default height value when it searches for a match.</definition>
/// </item>
/// <item>
/// <term>&lt; 0</term>
/// <definition>The font mapper transforms this value into device units and matches its absolute value against the character height
/// of the available fonts.</definition>
/// </item>
/// </list>
/// <para>For all height comparisons, the font mapper looks for the largest font that does not exceed the requested size.</para>
/// <para>This mapping occurs when the font is used for the first time.</para>
/// <para>
/// For the MM_TEXT mapping mode, you can use the following formula to specify a height for a font with a specified point size:
/// </para>
/// </summary>
public int lfHeight;
/// <summary>
/// The average width, in logical units, of characters in the font. If lfWidth is zero, the aspect ratio of the device is matched
/// against the digitization aspect ratio of the available fonts to find the closest match, determined by the absolute value of the difference.
/// </summary>
public int lfWidth;
/// <summary>
/// The angle, in tenths of degrees, between the escapement vector and the x-axis of the device. The escapement vector is parallel to
/// the base line of a row of text.
/// <para>
/// When the graphics mode is set to GM_ADVANCED, you can specify the escapement angle of the string independently of the orientation
/// angle of the string's characters.
/// </para>
/// <para>
/// When the graphics mode is set to GM_COMPATIBLE, lfEscapement specifies both the escapement and orientation. You should set
/// lfEscapement and lfOrientation to the same value.
/// </para>
/// </summary>
public int lfEscapement;
/// <summary>The angle, in tenths of degrees, between each character's base line and the x-axis of the device.</summary>
public int lfOrientation;
/// <summary>
/// The weight of the font in the range 0 through 1000. For example, 400 is normal and 700 is bold. If this value is zero, a default
/// weight is used.
/// </summary>
private int _lfWeight;
/// <summary>An italic font if set to TRUE.</summary>
[MarshalAs(UnmanagedType.U1)]
public bool lfItalic;
/// <summary>An underlined font if set to TRUE.</summary>
[MarshalAs(UnmanagedType.U1)]
public bool lfUnderline;
/// <summary>A strikeout font if set to TRUE.</summary>
[MarshalAs(UnmanagedType.U1)]
public bool lfStrikeOut;
/// <summary>The character set.</summary>
public CharacterSet lfCharSet;
/// <summary>
/// The output precision. The output precision defines how closely the output must match the requested font's height, width,
/// character orientation, escapement, pitch, and font type.
/// </summary>
public LogFontOutputPrecision lfOutPrecision;
/// <summary>
/// The clipping precision. The clipping precision defines how to clip characters that are partially outside the clipping region.
/// </summary>
public LogFontClippingPrecision lfClipPrecision;
/// <summary>
/// The output quality. The output quality defines how carefully the graphics device interface (GDI) must attempt to match the
/// logical-font attributes to those of an actual physical font.
/// </summary>
public LogFontOutputQuality lfQuality;
/// <summary>The pitch and family of the font.</summary>
private byte lfPitchAndFamily;
/// <summary>
/// A null-terminated string that specifies the typeface name of the font. The length of this string must not exceed 32 TCHAR values,
/// including the terminating NULL. The EnumFontFamiliesEx function can be used to enumerate the typeface names of all currently
/// available fonts. If lfFaceName is an empty string, GDI uses the first font that matches the other specified attributes.
/// </summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
private string _lfFaceName;
/// <summary>Gets or sets the font family.</summary>
/// <value>The font family.</value>
public FontFamily FontFamily
{
get => (FontFamily)(lfPitchAndFamily & 0xF0);
set => lfPitchAndFamily = (byte)((lfPitchAndFamily & 0x0F) | (byte)value);
}
/// <summary>
/// A string that specifies the typeface name of the font. The length of this string must not exceed 31 characters. The
/// EnumFontFamiliesEx function can be used to enumerate the typeface names of all currently available fonts. If lfFaceName is an
/// empty string, GDI uses the first font that matches the other specified attributes.
/// </summary>
/// <value>The face name of the font.</value>
public string lfFaceName
{
get => _lfFaceName;
set => _lfFaceName = value?.Length <= 31 ? value : throw new ArgumentException(@"The face name may not have more than 31 characters.", nameof(lfFaceName));
}
/// <summary>
/// The weight of the font in the range 0 through 1000. For example, 400 is normal and 700 is bold. If this value is zero, a default
/// weight is used.
/// </summary>
public short lfWeight
{
get => (short)_lfWeight;
set => _lfWeight = value >= 0 && value <= 1000 ? value : throw new ArgumentOutOfRangeException(nameof(lfWeight), @"Font weight must be a value in the range 0 through 1000.");
}
/// <summary>Gets or sets the font pitch.</summary>
/// <value>The pitch.</value>
public FontPitch Pitch
{
get => (FontPitch)(lfPitchAndFamily & 0x0F);
set => lfPitchAndFamily = (byte)((lfPitchAndFamily & 0xF0) | (byte)value);
}
/// <summary>Returns a <see cref="System.String"/> that represents this instance.</summary>
/// <returns>A <see cref="System.String"/> that represents this instance.</returns>
public override string ToString() => $"lfHeight={lfHeight}, lfWidth={lfWidth}, lfEscapement={lfEscapement}, lfOrientation={lfOrientation}, lfWeight={lfWeight}, lfItalic={lfItalic}, lfUnderline={lfUnderline}, lfStrikeOut={lfStrikeOut}, lfCharSet={lfCharSet}, lfOutPrecision={lfOutPrecision}, lfClipPrecision={lfClipPrecision}, lfQuality={lfQuality}, lfPitchAndFamily={lfPitchAndFamily}, lfFaceName={lfFaceName}";
}
}