wxMenuItem(3) Erlang Module Definition wxMenuItem(3)
NAME
wxMenuItem - Functions for wxMenuItem class
DESCRIPTION
A menu item represents an item in a menu.
Note that you usually don't have to deal with it directly as wxMenu
methods usually construct an object of this class for you.
Also please note that the methods related to fonts and bitmaps are cur-
rently only implemented for Windows, Mac and GTK+.
See: wxMenuBar, wxMenu
wxWidgets docs: wxMenuItem
EVENTS
Event types emitted from this class: menu_open, menu_close, menu_high-
light
DATA TYPES
wxMenuItem() = wx:wx_object()
EXPORTS
new() -> wxMenuItem()
new(Options :: [Option]) -> wxMenuItem()
Types:
Option =
{parentMenu, wxMenu:wxMenu()} |
{id, integer()} |
{text, unicode:chardata()} |
{help, unicode:chardata()} |
{kind, wx:wx_enum()} |
{subMenu, wxMenu:wxMenu()}
Constructs a wxMenuItem object.
Menu items can be standard, or "stock menu items", or custom.
For the standard menu items (such as commands to open a file,
exit the program and so on, see page_stockitems for the full
list) it is enough to specify just the stock ID and leave text
and help string empty. Some platforms (currently wxGTK only, and
see the remark in setBitmap/2 documentation) will also show
standard bitmaps for stock menu items.
Leaving at least text empty for the stock menu items is actually
strongly recommended as they will have appearance and keyboard
interface (including standard accelerators) familiar to the
user.
For the custom (non-stock) menu items, text must be specified
and while help string may be left empty, it's recommended to
pass the item description (which is automatically shown by the
library in the status bar when the menu item is selected) in
this parameter.
Finally note that you can e.g. use a stock menu label without
using its stock help string:
that is, stock properties are set independently one from the
other.
destroy(This :: wxMenuItem()) -> ok
Destructor.
check(This) -> ok
Types:
This = wxMenuItem()
check(This, Options :: [Option]) -> ok
Types:
This = wxMenuItem()
Option = {check, boolean()}
Checks or unchecks the menu item.
Note that this only works when the item is already appended to a
menu.
enable(This) -> ok
Types:
This = wxMenuItem()
enable(This, Options :: [Option]) -> ok
Types:
This = wxMenuItem()
Option = {enable, boolean()}
Enables or disables the menu item.
getBitmap(This) -> wxBitmap:wxBitmap()
Types:
This = wxMenuItem()
Returns the checked or unchecked bitmap.
Only for:wxmsw
getHelp(This) -> unicode:charlist()
Types:
This = wxMenuItem()
Returns the help string associated with the menu item.
getId(This) -> integer()
Types:
This = wxMenuItem()
Returns the menu item identifier.
getKind(This) -> wx:wx_enum()
Types:
This = wxMenuItem()
Returns the item kind, one of wxITEM_SEPARATOR, wxITEM_NORMAL,
wxITEM_CHECK or wxITEM_RADIO.
getLabelFromText(Text) -> unicode:charlist()
Types:
Text = unicode:chardata()
See: getLabelText/1.
getLabelText(Text) -> unicode:charlist()
Types:
Text = unicode:chardata()
Strips all accelerator characters and mnemonics from the given
text.
For example:
will return just "Hello".
See: getItemLabelText/1, getItemLabel/1
getText(This) -> unicode:charlist()
Types:
This = wxMenuItem()
See: getItemLabel/1.
getItemLabel(This) -> unicode:charlist()
Types:
This = wxMenuItem()
Returns the text associated with the menu item including any
accelerator characters that were passed to the constructor or
setItemLabel/2.
See: getItemLabelText/1, getLabelText/1
getLabel(This) -> unicode:charlist()
Types:
This = wxMenuItem()
See: getItemLabelText/1.
getItemLabelText(This) -> unicode:charlist()
Types:
This = wxMenuItem()
Returns the text associated with the menu item, without any
accelerator characters.
See: getItemLabel/1, getLabelText/1
getMenu(This) -> wxMenu:wxMenu()
Types:
This = wxMenuItem()
Returns the menu this menu item is in, or NULL if this menu item
is not attached.
getSubMenu(This) -> wxMenu:wxMenu()
Types:
This = wxMenuItem()
Returns the submenu associated with the menu item, or NULL if
there isn't one.
isCheckable(This) -> boolean()
Types:
This = wxMenuItem()
Returns true if the item is checkable.
Notice that the radio buttons are considered to be checkable as
well, so this method returns true for them too. Use IsCheck()
(not implemented in wx) if you want to test for the check items
only.
isChecked(This) -> boolean()
Types:
This = wxMenuItem()
Returns true if the item is checked.
isEnabled(This) -> boolean()
Types:
This = wxMenuItem()
Returns true if the item is enabled.
isSeparator(This) -> boolean()
Types:
This = wxMenuItem()
Returns true if the item is a separator.
isSubMenu(This) -> boolean()
Types:
This = wxMenuItem()
Returns true if the item is a submenu.
setBitmap(This, Bmp) -> ok
Types:
This = wxMenuItem()
Bmp = wxBitmap:wxBitmap()
Sets the bitmap for the menu item.
It is equivalent to wxMenuItem::SetBitmaps(bmp, wxNullBitmap) if
checked is true (default value) or SetBitmaps(wxNullBitmap, bmp)
otherwise.
setBitmap/2 must be called before the item is appended to the
menu, i.e. appending the item without a bitmap and setting one
later is not guaranteed to work. But the bitmap can be changed
or reset later if it had been set up initially.
Notice that GTK+ uses a global setting called gtk-menu-images to
determine if the images should be shown in the menus at all. If
it is off (which is the case in e.g. Gnome 2.28 by default), no
images will be shown, consistently with the native behaviour.
Only for:wxmsw,wxosx,wxgtk
setHelp(This, HelpString) -> ok
Types:
This = wxMenuItem()
HelpString = unicode:chardata()
Sets the help string.
setMenu(This, Menu) -> ok
Types:
This = wxMenuItem()
Menu = wxMenu:wxMenu()
Sets the parent menu which will contain this menu item.
setSubMenu(This, Menu) -> ok
Types:
This = wxMenuItem()
Menu = wxMenu:wxMenu()
Sets the submenu of this menu item.
setText(This, Label) -> ok
Types:
This = wxMenuItem()
Label = unicode:chardata()
See: setItemLabel/2.
setItemLabel(This, Label) -> ok
Types:
This = wxMenuItem()
Label = unicode:chardata()
Sets the label associated with the menu item.
Note that if the ID of this menu item corresponds to a stock ID,
then it is not necessary to specify a label: wxWidgets will
automatically use the stock item label associated with that ID.
See the new/1 for more info.
The label string for the normal menu items (not separators) may
include the accelerator which can be used to activate the menu
item from keyboard. An accelerator key can be specified using
the ampersand & character. In order to embed an ampersand char-
acter in the menu item text, the ampersand must be doubled.
Optionally you can specify also an accelerator string appending
a tab character \t followed by a valid key combination (e.g.
CTRL+V). Its general syntax is any combination of "CTRL", "RAWC-
TRL", "ALT" and "SHIFT" strings (case doesn't matter) separated
by either '-' or '+' characters and followed by the accelerator
itself. Notice that CTRL corresponds to the "Ctrl" key on most
platforms but not under macOS where it is mapped to "Cmd" key on
Mac keyboard. Usually this is exactly what you want in portable
code but if you really need to use the (rarely used for this
purpose) "Ctrl" key even under Mac, you may use RAWCTRL to pre-
vent this mapping. Under the other platforms RAWCTRL is the same
as plain CTRL.
The accelerator may be any alphanumeric character, any function
key (from F1 to F12), any numpad digit key using KP_ prefix
(i.e. from KP_0 to KP_9) or one of the special strings listed
below (again, case doesn't matter) corresponding to the speci-
fied key code:
Examples:
Note: In wxGTK using "SHIFT" with non-alphabetic characters cur-
rently doesn't work, even in combination with other modifiers,
due to GTK+ limitation. E.g. Shift+Ctrl+A works but Shift+Ctrl+1
or Shift+/ do not, so avoid using accelerators of this form in
portable code.
Note: In wxGTk, the left/right/up/down arrow keys do not work as
accelerator keys for a menu item unless a modifier key is used.
Additionally, the following keycodes are not supported as menu
accelerator keys:
See: getItemLabel/1, getItemLabelText/1
wxWidgets team. wx 2.1.1 wxMenuItem(3)