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NAME
wx - A port of wxWidgets.
DESCRIPTION
A port of wxWidgets.
This is the base api of wxWidgets. This module contains functions for starting and
stopping the wx-server, as well as other utility functions.
wxWidgets is object oriented, and not functional. Thus, in wxErlang a module represents a
class, and the object created by this class has an own type, wxCLASS(). This module
represents the base class, and all other wxMODULE's are sub-classes of this class.
Objects of a class are created with wxCLASS:new(...) and destroyed with wxCLASS:destroy().
Member functions are called with wxCLASS:member(Object, ...) instead of as in C++
Object.member(...).
Sub class modules inherit (non static) functions from their parents. The inherited
functions are not documented in the sub-classes.
This erlang port of wxWidgets tries to be a one-to-one mapping with the original wxWidgets
library. Some things are different though, as the optional arguments use property lists
and can be in any order. The main difference is the event handling which is different from
the original library. See wxEvtHandler.
The following classes are implemented directly as erlang types:
wxPoint={x,y},wxSize={w,h},wxRect={x,y,w,h},wxColour={r,g,b [,a]},
wxString=unicode:chardata(), wxGBPosition={r,c},wxGBSpan={rs,cs},wxGridCellCoords={r,c}.
wxWidgets uses a process specific environment, which is created by wx:new/0. To be able to
use the environment from other processes, call get_env/0 to retrieve the environment and
set_env/1 to assign the environment in the other process.
Global (classless) functions are located in the wx_misc module.
DATA TYPES
wx_colour() = {R::byte(), G::byte(), B::byte()} | wx_colour4():
wx_colour4() = {R::byte(), G::byte(), B::byte(), A::byte()}:
wx_datetime() = {{Year::integer(), Month::integer(), Day::integer()}, {Hour::integer(),
Minute::integer(), Second::integer()}}:
In Local Timezone
wx_enum() = integer():
Constant defined in wx.hrl
wx_env() = #wx_env{}:
Opaque process environment
wx_memory() = binary() | #wx_mem{}:
Opaque memory reference
wx_object() = #wx_ref{}:
Opaque object reference
wx_wxHtmlLinkInfo() = #wxHtmlLinkInfo{href=unicode:chardata(),
target=unicode:chardata()}:
wx_wxMouseState() = #wxMouseState{x=integer(), y=integer(), leftDown=boolean(),
middleDown=boolean(), rightDown=boolean(), controlDown=boolean(), shiftDown=boolean(),
altDown=boolean(), metaDown=boolean(), cmdDown=boolean()}:
See #wxMouseState{} defined in wx.hrl
EXPORTS
parent_class(X1) -> term()
new() -> wx_object()
Starts a wx server.
new(Options::[Option]) -> wx_object()
Types:
Option = {debug, list() | atom()} | {silent_start, boolean()}
Starts a wx server. Option may be {debug, Level}, see debug/1. Or {silent_start,
Bool}, which causes error messages at startup to be suppressed. The latter can be
used as a silent test of whether wx is properly installed or not.
destroy() -> ok
Stops a wx server.
get_env() -> wx_env()
Gets this process's current wx environment. Can be sent to other processes to allow
them use this process wx environment.
See also: set_env/1.
set_env(Wx_env::wx_env()) -> ok
Sets the process wx environment, allows this process to use another process wx
environment.
null() -> wx_object()
Returns the null object
is_null(Wx_ref::wx_object()) -> boolean()
Returns true if object is null, false otherwise
equal(Wx_ref::wx_object(), X2::wx_object()) -> boolean()
Returns true if both arguments references the same object, false otherwise
getObjectType(Wx_ref::wx_object()) -> atom()
Returns the object type
typeCast(Old::wx_object(), NewType::atom()) -> wx_object()
Casts the object to class NewType. It is needed when using functions like
wxWindow:findWindow/2, which returns a generic wxObject type.
batch(Fun::function()) -> term()
Batches all wx commands used in the fun. Improves performance of the command
processing by grabbing the wxWidgets thread so that no event processing will be
done before the complete batch of commands is invoked.
See also: foldl/3, foldr/3, foreach/2, map/2.
foreach(Fun::function(), List::list()) -> ok
Behaves like lists:foreach/2 but batches wx commands. See batch/1.
map(Fun::function(), List::list()) -> list()
Behaves like lists:map/2 but batches wx commands. See batch/1.
foldl(Fun::function(), Acc::term(), List::list()) -> term()
Behaves like lists:foldl/3 but batches wx commands. See batch/1.
foldr(Fun::function(), Acc::term(), List::list()) -> term()
Behaves like lists:foldr/3 but batches wx commands. See batch/1.
create_memory(Size::integer()) -> wx_memory()
Creates a memory area (of Size in bytes) which can be used by an external library
(i.e. opengl). It is up to the client to keep a reference to this object so it does
not get garbage collected by erlang while still in use by the external library.
This is far from erlang's intentional usage and can crash the erlang emulator. Use
it carefully.
get_memory_bin(Wx_mem::wx_memory()) -> binary()
Returns the memory area as a binary.
retain_memory(Wx_mem::wx_memory()) -> ok
Saves the memory from deletion until release_memory/1 is called. If
release_memory/1 is not called the memory will not be garbage collected.
release_memory(Wx_mem::wx_memory()) -> ok
debug(Debug::Level | [Level]) -> ok
Types:
Level = none | verbose | trace | driver | integer()
Sets debug level. If debug level is 'verbose' or 'trace' each call is printed on
console. If Level is 'driver' each allocated object and deletion is printed on the
console.
demo() -> ok | {error, atom()}
Starts a wxErlang demo if examples directory exists and is compiled
AUTHORS
<>
wx 1.8.3 wx(3erl)