仅供参考 CreateFont The CreateFont function creates a logical font that has specific characteristics. The logical font can subsequently be selected as the font for any device. HFONT CreateFont( int nHeight, // logical height of font int nWidth, // logical average character width int nEscapement, // angle of escapement int nOrientation, // base-line orientation angle int fnWeight, // font weight DWORD fdwItalic, // italic attribute flag DWORD fdwUnderline, // underline attribute flag DWORD fdwStrikeOut, // strikeout attribute flag DWORD fdwCharSet, // character set identifier DWORD fdwOutputPrecision, // output precision DWORD fdwClipPrecision, // clipping precision DWORD fdwQuality, // output quality DWORD fdwPitchAndFamily, // pitch and family LPCTSTR lpszFace // pointer to typeface name string );
Parameters nHeight Specifies 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 nHeight in the following manner: Value Meaning > 0 The font mapper transforms this value into device units and matches it against the cell height of the available fonts. 0 The font mapper uses a default height value when it searches for a match. < 0 The font mapper transforms this value into device units and matches its absolute value against the character height of the available fonts. For all height comparisons, the font mapper looks for the largest font that does not exceed the requested size. This mapping occurs when the font is used for the first time. For the MM_TEXT mapping mode, you can use the following formula to specify a height for a font with a specified point size: nHeight = -MulDiv(PointSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
nWidth Specifies the average width, in logical units, of characters in the requested font. If this value is zero, the font mapper chooses a "closest match" value. The "closest match" value is determined by comparing the absolute values of the difference between the current device's aspect ratio and the digitized aspect ratio of available fonts. nEscapement Specifies 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. Windows NT: 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. When the graphics mode is set to GM_COMPATIBLE, nEscapement specifies both the escapement and orientation. You should set nEscapement and nOrientation to the same value. Windows 95: The nEscapement parameter specifies both the escapement and orientation. You should set nEscapement and nOrientation to the same value. nOrientation Specifies the angle, in tenths of degrees, between each character's base line and the x-axis of the device. fnWeight Specifies 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. The following values are defined for convenience: Value Weight FW_DONTCARE 0 FW_THIN 100 FW_EXTRALIGHT 200 FW_ULTRALIGHT 200 FW_LIGHT 300 FW_NORMAL 400 FW_REGULAR 400 FW_MEDIUM 500 FW_SEMIBOLD 600 FW_DEMIBOLD 600 FW_BOLD 700 FW_EXTRABOLD 800 FW_ULTRABOLD 800 FW_HEAVY 900 FW_BLACK 900 fdwItalic Specifies an italic font if set to TRUE. fdwUnderline Specifies an underlined font if set to TRUE. fdwStrikeOut Specifies a strikeout font if set to TRUE. fdwCharSet Specifies the character set. The following values are predefined: ANSI_CHARSET BALTIC_CHARSET CHINESEBIG5_CHARSET DEFAULT_CHARSET EASTEUROPE_CHARSET GB2312_CHARSET GREEK_CHARSET HANGUL_CHARSET MAC_CHARSET OEM_CHARSET RUSSIAN_CHARSET SHIFTJIS_CHARSET SYMBOL_CHARSET TURKISH_CHARSET Korean Windows: JOHAB_CHARSET Middle-Eastern Windows: HEBREW_CHARSET ARABIC_CHARSET Thai Windows: THAI_CHARSET The OEM_CHARSET value specifies a character set that is operating-system dependent. You can use the DEFAULT_CHARSET value to allow the name and size of a font to fully describe the logical font. If the specified font name does not exist, a font from any character set can be substituted for the specified font, so you should use DEFAULT_CHARSET sparingly to avoid unexpected results. Fonts with other character sets may exist in the operating system. If an application uses a font with an unknown character set, it should not attempt to translate or interpret strings that are rendered with that font. This parameter is important in the font mapping process. To ensure consistent results, specify a specific character set. If you specify a typeface name in the lpszFace parameter, make sure that the fdwCharSet value matches the character set of the typeface specified in lpszFace. ……
CreateFont
The CreateFont function creates a logical font that has specific characteristics. The logical font can subsequently be selected as the font for any device. HFONT CreateFont(
int nHeight, // logical height of font
int nWidth, // logical average character width
int nEscapement, // angle of escapement
int nOrientation, // base-line orientation angle
int fnWeight, // font weight
DWORD fdwItalic, // italic attribute flag
DWORD fdwUnderline, // underline attribute flag
DWORD fdwStrikeOut, // strikeout attribute flag
DWORD fdwCharSet, // character set identifier
DWORD fdwOutputPrecision, // output precision
DWORD fdwClipPrecision, // clipping precision
DWORD fdwQuality, // output quality
DWORD fdwPitchAndFamily, // pitch and family
LPCTSTR lpszFace // pointer to typeface name string
);
Parameters
nHeight
Specifies 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 nHeight in the following manner: Value Meaning
> 0 The font mapper transforms this value into device units and matches it against the cell height of the available fonts.
0 The font mapper uses a default height value when it searches for a match.
< 0 The font mapper transforms this value into device units and matches its absolute value against the character height of the available fonts.
For all height comparisons, the font mapper looks for the largest font that does not exceed the requested size. This mapping occurs when the font is used for the first time. For the MM_TEXT mapping mode, you can use the following formula to specify a height for a font with a specified point size:
nHeight = -MulDiv(PointSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
nWidth
Specifies the average width, in logical units, of characters in the requested font. If this value is zero, the font mapper chooses a "closest match" value. The "closest match" value is determined by comparing the absolute values of the difference between the current device's aspect ratio and the digitized aspect ratio of available fonts.
nEscapement
Specifies 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.
Windows NT: 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. When the graphics mode is set to GM_COMPATIBLE, nEscapement specifies both the escapement and orientation. You should set nEscapement and nOrientation to the same value. Windows 95: The nEscapement parameter specifies both the escapement and orientation. You should set nEscapement and nOrientation to the same value. nOrientation
Specifies the angle, in tenths of degrees, between each character's base line and the x-axis of the device.
fnWeight
Specifies 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.
The following values are defined for convenience: Value Weight
FW_DONTCARE 0
FW_THIN 100
FW_EXTRALIGHT 200
FW_ULTRALIGHT 200
FW_LIGHT 300
FW_NORMAL 400
FW_REGULAR 400
FW_MEDIUM 500
FW_SEMIBOLD 600
FW_DEMIBOLD 600
FW_BOLD 700
FW_EXTRABOLD 800
FW_ULTRABOLD 800
FW_HEAVY 900
FW_BLACK 900 fdwItalic
Specifies an italic font if set to TRUE.
fdwUnderline
Specifies an underlined font if set to TRUE.
fdwStrikeOut
Specifies a strikeout font if set to TRUE.
fdwCharSet
Specifies the character set. The following values are predefined:
ANSI_CHARSET
BALTIC_CHARSET
CHINESEBIG5_CHARSET
DEFAULT_CHARSET
EASTEUROPE_CHARSET
GB2312_CHARSET
GREEK_CHARSET
HANGUL_CHARSET
MAC_CHARSET
OEM_CHARSET
RUSSIAN_CHARSET
SHIFTJIS_CHARSET
SYMBOL_CHARSET
TURKISH_CHARSET Korean Windows:
JOHAB_CHARSET
Middle-Eastern Windows:
HEBREW_CHARSET
ARABIC_CHARSET
Thai Windows:
THAI_CHARSET
The OEM_CHARSET value specifies a character set that is operating-system dependent. You can use the DEFAULT_CHARSET value to allow the name and size of a font to fully describe the logical font. If the specified font name does not exist, a font from any character set can be substituted for the specified font, so you should use DEFAULT_CHARSET sparingly to avoid unexpected results. Fonts with other character sets may exist in the operating system. If an application uses a font with an unknown character set, it should not attempt to translate or interpret strings that are rendered with that font. This parameter is important in the font mapping process. To ensure consistent results, specify a specific character set. If you specify a typeface name in the lpszFace parameter, make sure that the fdwCharSet value matches the character set of the typeface specified in lpszFace. ……