uicontextmenu (MATLAB Functions)

Create context menu

Syntax

handle = uicontextmenu('PropertyName',PropertyValue,...);

Description

uicontextmenu creates a context menu, which is a menu that appears when the user right-clicks on a graphics object.

You create context menu items using the uimenu function. Menu items appear in the order the uimenu statements appear. You associate a context menu with an object using the UIContextMenu property for the object and specifying the context menu's handle as the property value.

Properties

This table lists the properties that are useful to uicontextmenu objects, grouping them by function. Each property name acts as a link to a description of the property.

Property Name
Property Description
Property Value

Controlling Style and Appearance

Visible
Uicontextmenu visibility
Value: on, off
Default: off

Position
Location of uicontextmenu when Visible is set to on
Value: two-element vector
Default: [0 0]

General Information About the Object

Children
The uimenus defined for the uicontextmenu
Value: matrix

Parent
Uicontextmenu object's parent
Value: scalar figure handle

Tag
User-specified object identifier
Value: string

Type
Class of graphics object
Value: string (read-only)
Default: uicontrol

UserData
User-specified data
Value: matrix

Controlling Callback Routine Execution

BusyAction
Callback routine interruption
Value: cancel, queue
Default: queue

Callback
Control action
Value: string

CreateFcn
Callback routine executed during object creation
Value: string

DeleteFcn
Callback routine executed during object deletion
Value: string

Interruptible
Callback routine interruption mode
Value: on, off
Default: on

Controlling Access to Objects

HandleVisibility
Whether handle is accessible from command line and GUIs
Value: on, callback, off
Default: on

Property Name	Property Description	Property Value
Controlling Style and Appearance
`Visible`	Uicontextmenu visibility	Value: `on`, `off` Default: `off`
`Position`	Location of uicontextmenu when `Visible` is set to `on`	Value: two-element vector Default: `[0 0]`
General Information About the Object
`Children`	The uimenus defined for the uicontextmenu	Value: matrix
`Parent`	Uicontextmenu object's parent	Value: scalar figure handle
`Tag`	User-specified object identifier	Value: string
`Type`	Class of graphics object	Value: string (read-only) Default: `uicontrol`
`UserData`	User-specified data	Value: matrix
Controlling Callback Routine Execution
`BusyAction`	Callback routine interruption	Value: `cancel`, `queue` Default: `queue`
`Callback`	Control action	Value: string
`CreateFcn`	Callback routine executed during object creation	Value: string
`DeleteFcn`	Callback routine executed during object deletion	Value: string
`Interruptible`	Callback routine interruption mode	Value: `on`, `off` Default: `on`
Controlling Access to Objects
`HandleVisibility`	Whether handle is accessible from command line and GUIs	Value: `on`, `callback`, `off` Default: `on`

Example

These statements define a context menu associated with a line. When the user extend-clicks anywhere on the line, the menu appears. Menu items enable the user to change the line style.

% Define the context menu
cmenu = uicontextmenu;
% Define the line and associate it with the context menu
hline = plot(1:10, 'UIContextMenu', cmenu);
% Define callbacks for context menu items
cb1 = ['set(hline, ''LineStyle'', ''--'')'];
cb2 = ['set(hline, ''LineStyle'', '':'')'];
cb3 = ['set(hline, ''LineStyle'', ''-'')'];
% Define the context menu items
item1 = uimenu(cmenu, 'Label', 'dashed', 'Callback', cb1);
item2 = uimenu(cmenu, 'Label', 'dotted', 'Callback', cb2);
item3 = uimenu(cmenu, 'Label', 'solid', 'Callback', cb3);

When the user extend-clicks on the line, the context menu appears, as shown in this figure:

Uibuttongroup Properties Uicontextmenu Properties