Microsoft Foundation Classes (mfc.hlp) (
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CFont::CreateFont
◄CFont► ◄Up► ◄Contents► ◄Index► ◄Back►
──Microsoft Foundation Classes──────────────────────────────────────────────
BOOL CreateFont( int nHeight, int nWidth, int nEscapement,
int nOrientation, int nWeight, BYTE bItalic,
BYTE bUnderline, BYTE cStrikeOut, BYTE nCharSet,
BYTE nOutPrecision, BYTE nClipPrecision,
BYTE nQuality, BYTE nPitchAndFamily,
const char FAR* lpFacename );
Parameter Description
<nHeight> Specifies the desired height (in logical units) of the
font. The font height can be specified in three ways.
Height Result
Greater than 0 Height is transformed into device
units and matched against the cell
height of the available fonts.
Equal to 0 A reasonable default size is used.
Less than 0 Height is transformed into device
units and the absolute value is
matched 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. Then, if there is no such font, it looks for the
smallest font available.
<nWidth> Specifies the average width (in logical units) of
characters in the font. If <nWidth> is 0, the aspect
ratio of the device will be matched against the
digitization aspect ratio of the available fonts to
find the closest match, which is determined by the
absolute value of the difference.
<nEscapement> Specifies the angle (in 0.1-degree units) between the
escapement vector and the x-axis of the display
surface. The escapement vector is the line through the
origins of the first and last characters on a line.
The angle is measured counterclockwise from the
x-axis.
<nOrientation> Specifies the angle (in 0.1-degree units) between the
baseline of a character and the x-axis. The angle is
measured counterclockwise from the x-axis.
<nWeight> Specifies the font weight (in inked pixels per 1000).
Although <nWeight> can be any integer value from 0 to
1000, the common values are as follows:
Value Meaning
400 Normal
700 Bold
These values are approximate; the actual appearance
depends on the typeface. If <nWeight> is 0, a default
weight is used.
<bItalic> Specifies whether the font is italic.
<bUnderline> Specifies whether the font is underlined.
<cStrikeOut> Specifies whether characters in the font are struck
out. Specifies a strikeout font if set to a nonzero
value.
<nCharSet> Specifies the font's character set. The following
values are predefined:
ANSI_CHARSET
OEM_CHARSET
SYMBOL_CHARSET
The OEM character set is system-dependent.
Fonts with other character sets may exist in the
system. An application that uses a font with an
unknown character set must not attempt to translate or
interpret strings that are to be rendered with that
font. Instead, the strings should be passed directly
to the output device driver.
<nOutPrecision> Specifies the desired output precision. The output
precision defines how closely the output must match
the requested font's height, width, character
orientation, escapement, and pitch. It can be any one
of the following values:
OUT_CHARACTER_PRECIS
OUT_DEFAULT_PRECIS
OUT_STRING_PRECIS
OUT_STROKE_PRECIS
<nClipPrecision> Specifies the desired clipping precision. The clipping
precision defines how to clip characters that are
partially outside the clipping region. It can be any
one of the following values:
CLIP_CHARACTER_PRECIS
CLIP_DEFAULT_PRECIS
CLIP_STROKE_PRECIS
<nQuality> Specifies the font's output quality, which defines how
carefully GDI must attempt to match the logical-font
attributes to those of an actual physical font. It can
be one of the following values:
Value Meaning
DEFAULT_QUALITY Appearance of the font does not
matter.
DRAFT_QUALITY Appearance of the font is less
important than when PROOF_QUALITY is
used. For GDI raster fonts, scaling
is enabled. Bold, italic, underline,
and strikeout fonts are synthesized
if necessary.
PROOF_QUALITY 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. Bold, italic,
underline, and strikeout fonts are
synthesized if necessary.
<nPitchAndFamily> Specifies the pitch and family of the font. The two
low-order bits specify the pitch of the font and can
be any one of the following values:
DEFAULT_PITCH
FIXED_PITCH
VARIABLE_PITCH
The four high-order bits of the member specify the
font family and can be one of the following values:
Value Meaning
FF_DECORATIVE Novelty fonts. Old English, for
example.
FF_DONTCARE Don't care or don't know.
FF_MODERN Fonts with constant stroke width
(fixed-pitch), with or without serifs.
Fixed-pitch fonts are usually modern.
Pica, Elite, and Courier New are
examples.
FF_ROMAN Fonts with variable stroke width
(proportionally spaced) and with
serifs. Times New Roman and Century
Schoolbook are examples.
FF_SCRIPT Fonts designed to look like
handwriting. Script and Cursive are
examples.
FF_SWISS Fonts with variable stroke width
(proportionally spaced) and without
serifs. MS Sans Serif is an example.
An application can specify a value for
<nPitchAndFamily> by using the Boolean OR operator to
join a pitch constant with a family constant.
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.
<lpFacename> A CString or pointer to a null-terminated string that
specifies the typeface name of the font. The length of
this string must not exceed 30 characters. The Windows
EnumFonts function can be used to enumerate all
currently available fonts. If <lpFacename> is NULL,
GDI uses a default typeface.
Remarks
Initializes a CFont object with the specified characteristics. The font
can subsequently be selected as the font for any device context.
The CreateFont function does not create a new Windows GDI font. It
merely selects the closest match from the fonts available in GDI's pool
of physical fonts.
Return Value
TRUE if successful; otherwise FALSE.
See Also
◄CFont::CreateFontIndirect►, ◄::CreateFont►, ◄::EnumFonts►
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