SetCheck()

Activates or deactivates the check mark on a menu item.

SetCheck(string item_name, string check)

Argument	Contents
item_name	The name of the menu item
check	The string "Checked" to check the menu item, or null to remove the check mark from the item

SetCheck("wide lines", "Checked")

SetCheck("narrow lines", null)

Error Type	Meaning
NotFound	The menu item does not exist or is not part of the current menu system

Function	Summary
DisableMenuItems()	Disables several menu items at once
EnableMenuItems()	Enables several menu items at once
DisableItem()	Disables a dialog box item or menu item
EnableItem()	Enables a dialog box item or menu item