Maintainer	gtk2hs-users@lists.sourceforge.net
Stability	provisional
Portability	portable (depends on GHC)
Safe Haskell	None
Language	Haskell98

Graphics.UI.Gtk.Gdk.Keys

Description

A KeyVal is a numeric value identifying a keyboard key. The defined values can be found at <http: The names of the keys are the names of the macros without the prefix.

Synopsis

Documentation

type KeyVal = Word32 Source

Key values are the codes which are sent whenever a key is pressed or released.

type KeyCode = Word16 Source

keyName :: KeyVal -> DefaultGlibString Source

Converts a key value into a symbolic name.

keyFromName :: DefaultGlibString -> KeyVal Source

Converts a key name to a key value.

keyToChar Source

Arguments

:: KeyVal	`keyval` - a Gdk key symbol
-> Maybe Char	returns the corresponding unicode character, or Nothing if there is no corresponding character.

Convert from a Gdk key symbol to the corresponding Unicode character.

keyvalName :: KeyVal -> IO DefaultGlibString Source

keyvalFromName :: DefaultGlibString -> IO KeyVal Source

keyvalToChar :: KeyVal -> IO (Maybe Char) Source

keyvalConvertCase Source

Arguments

:: KeyVal	`symbol` a keyval
-> (KeyVal, KeyVal)	`(lower, upper)` ^ lower is the lowercase version of symbol. ^ upper is uppercase version of symbol.

Obtains the upper- and lower-case versions of the keyval symbol. Examples of keyvals are GDK_a, Enter, F1, etc.

keyvalToUpper Source

Arguments

:: KeyVal	`keyval` a key value.
-> KeyVal	returns the upper case form of keyval, or keyval itself if it is already in upper case or it is not subject to case

Converts a key value to upper case, if applicable.

keyvalToLower Source

Arguments

:: KeyVal	`keyval` a key value.
-> KeyVal	returns the lower case form of keyval, or keyval itself if it is already in lower case or it is not subject to case

Converts a key value to lower case, if applicable.

keyvalIsUpper Source

Arguments

:: KeyVal
-> Bool	returns `True` if keyval is in upper case, or if keyval is not subject to case conversion.

Returns True if the given key value is in upper case.

keyvalIsLower Source

Arguments

:: KeyVal
-> Bool	returns `True` if keyval is in upper case, or if keyval is not subject to case conversion.

Returns True if the given key value is in upper case.