Ksp reference Manual

User Interface Commands
101
KSP Reference Manual

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12.27. set_menu_item_visibility()
set_menu_item_visibility(,,)
Sets the visibility of a menu entry

The ID of the menu that you want to modify

The index of the menu item

Set to either 0 (invisible) or 1 (visible)
Remarks
The 

is defined by the order in which the menu items are added within the init callback; it
can’t be changed afterwards. The 

is set by the third parameter of the
add_menu_item()
command.
Add as many menu entries as you would possibly need within the init callback, then show or hide
them dynamically by using 
set_menu_item_visibility()
.
If you set the currently selected menu item to invisible, the item will remain visible until it is no lon-
ger selected.
Examples
on init
declare ui_menu $menu
declare ui_button $button
add_menu_item ($menu, "First Entry",0)
add_menu_item ($menu, "Second Entry",5)
add_menu_item ($menu, "Third Entry",10)
end on
on ui_control ($button)
set_menu_item_visibility (get_ui_id($menu),1,0)
end on
Hiding the second menu entry
See Also
$CONTROL_PAR_SELECTED_ITEM_IDX
$CONTROL_PAR_NUM_ITEMS
add_menu_item()
get_menu_item_str()
get_menu_item_value()
get_menu_item_visibility()
set_menu_item_str()
set_menu_item_visibility()