Maplets[Elements]

Parameters

 opts - equation(s) of the form option=value where option is one of background, caption, enabled, font, foreground, image, reference, or visible; specify options for the Menu element element_content - any number of CheckBoxMenuItem, Menu, MenuItem, MenuSeparator, or RadioButtonMenuItem elements; nested Menu elements create submenus refID - name or string; reference to the element

Description

 • The Menu element features can be modified by using options. To simplify specifying options in the Maplets package, certain options and contents can be set without using an equation. The following table lists elements, symbols, and types (in the left column) and the corresponding option or content (in the right column) to which inputs of this type are, by default, assigned.

 Elements, Symbols, or Types Assumed Option or Content Image element image option string or symbol caption option

 • The following table describes the control and use of the Menu element options.
 An x in the I column indicates that the option can be initialized, that is, specified in the calling sequence (element definition).
 An x in the R column indicates that the option is required in the calling sequence.
 An x in the G column indicates that the option can be read, that is, retrieved by using the Get tool.
 An x in the S column indicates that the option can be written, that is, set by using the SetOption element or the Set tool.

 Option I R G S caption x x x x background x x x enabled x x x font x foreground x x x image x reference x visible x x x

 • The opts argument can contain one or more of the following equations that set Maplet application options.
 background = color
 The color of the highlights of the menu.  This can be a recognized color name, an RGB color structure, or a string of the form "#RRGGBB" where each pair is a two-digit hexadecimal number.
 caption = string or symbol
 The caption that appears on the menu.  The caption can have a mnemonic key or access key associated with it.  For more information, see Maplets Mnemonic Key.
 enabled = true or false
 Whether a menu can be selected.  If enabled is set to false, the menu is dimmed, and any action associated with it cannot be initiated.  By default, the value is true.
 font = Font element or reference to a Font element (name or string)
 The text font in the menu.
 foreground = color
 The face color of the menu.
 image = Image element or reference to an Image element (name or string)
 A reference to an Image element.
 reference = name or string
 A reference for the Menu element.
 If the reference is specified by both an index, for example, Menu[refID], and a reference in the calling sequence, the index reference takes precedence.
 visible = true or false
 Whether the menu is visible to the user.  By default, the value is true.

Examples

 > $\mathrm{with}\left(\mathrm{Maplets}\left[\mathrm{Elements}\right]\right):$
 > $\mathrm{maplet}≔\mathrm{Maplet}\left(\mathrm{Window}\left('\mathrm{menubar}'='\mathrm{MB1}',\left[\left[\mathrm{Button}\left("OK",\mathrm{Shutdown}\left("Closed from button"\right)\right)\right]\right]\right),\mathrm{MenuBar}\left['\mathrm{MB1}'\right]\left(\mathrm{Menu}\left("File",\mathrm{MenuItem}\left("Close",\mathrm{Shutdown}\left("Closed from menu",\left['\mathrm{CBMI1}','\mathrm{RBMI1}','\mathrm{RBMI2}'\right]\right)\right)\right),\mathrm{Menu}\left("Options",\mathrm{CheckBoxMenuItem}\left['\mathrm{CBMI1}'\right]\left("Check Option"\right),\mathrm{RadioButtonMenuItem}\left['\mathrm{RBMI1}'\right]\left("1st Radio Option",\mathrm{group}='\mathrm{BG1}'\right),\mathrm{RadioButtonMenuItem}\left['\mathrm{RBMI2}'\right]\left("2nd Radio Option",\mathrm{group}='\mathrm{BG1}'\right)\right),\mathrm{Menu}\left("File2",\mathrm{Menu}\left("Submenu",\mathrm{MenuItem}\left("Close",\mathrm{Shutdown}\left("Closed from submenu",\left['\mathrm{CBMI1}','\mathrm{RBMI1}','\mathrm{RBMI2}'\right]\right)\right)\right)\right)\right),\mathrm{ButtonGroup}\left['\mathrm{BG1}'\right]\left(\right)\right):$
 > $\mathrm{Maplets}\left[\mathrm{Display}\right]\left(\mathrm{maplet}\right)$