|Defines if the menu item is an ordinary one,
separator, checkable item, radio group holder or radio group member.
VarioMenuItem.Type = TypeConstant
TypeConstant - Numeric value specifying each menu item type. It can be
one of the following:
||The default initial value. Marks the item as an ordinary menu
item with a caption and click handler function.
||This menu item is a separator. No caption can be
set, nor event handler should be specified.
||The same as mitNormal but the
item realizes on/off logic with a tick mark. Checked
property is available for indicating the state.
||This menu item is a radio group and holds group's
member items in its Subs collection. Each radio
group member has mitGroupMember value in its Type property.
||This menu item is part of a radio group.
Sometimes you can't change the value of this property. If you set it once to mitRadioGroup,
it can't be revert to anything else - the onlt way is to delete it and create it again.
Also, menu items that are created as children of a radio group holder initialy has mitGroupMember
value in Type and it can't be changed too.