X11 Libraries (X11 package)Source codeContentsIndex
Graphics.X11.Xlib.Font
Portabilityportable
Stabilityprovisional
Maintainerlibraries@haskell.org
Description
A collection of FFI declarations for interfacing with Xlib Fonts.
Synopsis
type Glyph = Word16
queryFont :: Display -> Font -> IO FontStruct
fontFromGC :: Display -> GC -> IO Font
loadQueryFont :: Display -> String -> IO FontStruct
freeFont :: Display -> FontStruct -> IO ()
data FontStruct
fontFromFontStruct :: FontStruct -> Font
ascentFromFontStruct :: FontStruct -> Int32
descentFromFontStruct :: FontStruct -> Int32
type CharStruct = (CInt, CInt, CInt, CInt, CInt)
textExtents :: FontStruct -> String -> (FontDirection, Int32, Int32, CharStruct)
textWidth :: FontStruct -> String -> Int32
Documentation
type Glyph = Word16
queryFont :: Display -> Font -> IO FontStruct
interface to the X11 library function XQueryFont().
fontFromGC :: Display -> GC -> IO Font
interface to the X11 library function XGetGCValues().
loadQueryFont :: Display -> String -> IO FontStruct
interface to the X11 library function XLoadQueryFont().
freeFont :: Display -> FontStruct -> IO ()
interface to the X11 library function XFreeFont().
data FontStruct
pointer to an X11 XFontStruct structure
show/hide Instances
fontFromFontStruct :: FontStruct -> Font
ascentFromFontStruct :: FontStruct -> Int32
descentFromFontStruct :: FontStruct -> Int32
type CharStruct = (CInt, CInt, CInt, CInt, CInt)
textExtents :: FontStruct -> String -> (FontDirection, Int32, Int32, CharStruct)
interface to the X11 library function XTextExtents().
textWidth :: FontStruct -> String -> Int32
interface to the X11 library function XTextWidth().
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