User Menus under Windows
Enables users to add, delete and program menus under Windows.
winMenuAdd(menuname) winMenuAddItem(menuname, itemname, action) winMenuDel(menuname) winMenuDelItem(menuname, itemname) winMenuNames() winMenuItems(menuname)
a character string naming a menu.
a character string naming a menu item on an existing menu.
a character string describing the action when that menu is selected, or
User menus are added to the right of existing menus, and items are added at the bottom of the menu.
By default the action character string is treated as R input, being echoed on the command line and parsed and executed as usual.
menuname parameter of
winMenuAddItem does not
already exist, it will be created automatically.
Normally new submenus and menu items are added to the main console menu. They may be added elsewhere using the following special names:
The console menu (the default)
The console popup menu
The menu for graphics window
The popup menu for graphics window
Specifying an existing item in
winMenuAddItem enables the
action to be changed.
Submenus can be specified by separating the elements in
menuname by slashes: as a consequence menu names may not
action is specified as
"none" no action is taken:
this can be useful to reserve items for future expansion.
winMenuNames can be used to find out what menus
have been created by the user and returns a vector of the existing
winMenuItems function will take the name of a menu and
return the items that exist in that menu. The return value is a named
vector where the names correspond to the names of the items and the
values of the vector are the corresponding actions.
winMenuDel function will delete a menu and all of its items
winMenuDelItem just deletes one menu item.
The total path to an item (menu string plus item string) cannot exceed 1000 bytes, and the menu string cannot exceed 500 bytes.
NULL, invisibly. If an error occurs, an informative error
message will be given.
These functions are only available on Windows.