font manual page - Tk Built-In Commands

[1] fontname

The name of a named font, created using the font create command. When a widget uses a named font, it is guaranteed that this will never cause an error, as long as the named font exists, no matter what potentially invalid or meaningless set of attributes the named font has. If the named font cannot be displayed with exactly the specified attributes, some other close font will be substituted automatically.

[2] systemfont

The platform-specific name of a font, interpreted by the graphics server. This also includes, under X, an XLFD (see [4]) for which a single “*” character was used to elide more than one field in the middle of the name. See PLATFORM SPECIFIC FONTS for a list of the system fonts.

[3] family ?size? ?style? ?style ...?

A properly formed list whose first element is the desired font family and whose optional second element is the desired size. The interpretation of the size attribute follows the same rules described for -size in FONT OPTIONS below. Any additional optional arguments following the size are font styles. Possible values for the style arguments are as follows:

normal	bold	roman	italic
underline	overstrike

[4] X-font names (XLFD)

A Unix-centric font name of the form -foundry-family-weight-slant-setwidth-addstyle-pixel-point-resx-resy-spacing-width-charset-encoding. The “*” character may be used to skip individual fields that the user does not care about. There must be exactly one “*” for each field skipped, except that a “*” at the end of the XLFD skips any remaining fields; the shortest valid XLFD is simply “*”, signifying all fields as defaults. Any fields that were skipped are given default values. For compatibility, an XLFD always chooses a font of the specified pixel size (not point size); although this interpretation is not strictly correct, all existing applications using XLFDs assumed that one “point” was in fact one pixel and would display incorrectly (generally larger) if the correct size font were actually used.

[5] option value ?option value ...?

A properly formed list of option-value pairs that specify the desired attributes of the font, in the same format used when defining a named font; see FONT OPTIONS below.

When font description font is used, the system attempts to parse the description according to each of the above five rules, in the order specified. Cases [1] and [2] must match the name of an existing named font or of a system font. Cases [3], [4], and [5] are accepted on all platforms and the closest available font will be used. In some situations it may not be possible to find any close font (e.g., the font family was a garbage value); in that case, some system-dependent default font is chosen. If the font description does not match any of the above patterns, an error is generated.

FONT METRICS

FONT OPTIONS

STANDARD FONTS

It is not advised to change these fonts, as they may be modified by Tk itself in response to system changes. Instead, make a copy of the font and modify that.

pack [text .t -wrap none] -fill both -expand 1 set count 0 set tabwidth 0 foreach family [lsort -dictionary [font families]] { .t tag configure f[incr count] -font [list $family 10] .t insert end ${family}:\t {} \ "This is a simple sampler\n" f$count set w [font measure [.t cget -font] ${family}:] if {$w+5 > $tabwidth} { set tabwidth [expr {$w+5}] .t configure -tabs $tabwidth } }

system	ansi	device
systemfixed	ansifixed	oemfixed

systemSystemFont	systemEmphasizedSystemFont
systemSmallSystemFont	systemSmallEmphasizedSystemFont
systemApplicationFont	systemLabelFont
systemViewsFont	systemMenuTitleFont
systemMenuItemFont	systemMenuItemMarkFont
systemMenuItemCmdKeyFont	systemWindowTitleFont
systemPushButtonFont	systemUtilityWindowTitleFont
systemAlertHeaderFont	systemToolbarFont
systemMiniSystemFont	systemDetailSystemFont
systemDetailEmphasizedSystemFont

Tk Documentation > Tk Commands > font

Tk Applications | Tk Commands | Tk C API

NAME

SYNOPSIS

DESCRIPTION

FONT DESCRIPTIONS

FONT METRICS

FONT OPTIONS

STANDARD FONTS

PLATFORM SPECIFIC FONTS

EXAMPLE

SEE ALSO

KEYWORDS