CheckItem
To place/remove a check mark to left of menu item, use the CheckItem method.
CheckItem hMenu as MenuHandle, whichItem as Integer, checkIt as Boolean
hMenu Handle of the menu.
whichItem Item ID of item to check/uncheck.
checkIt TRUE=check it; FALSE = remove the check mark.
Description:
CheckItem places or removes a check mark (ASCII 18) to the left of a specified menu item. This is used to indicate which several menu options are currently in effect; e.g., that character style is being used.
Supported platforms:
* MacOS PPC
* MacOS Carbon
* MacOS 68k
Unsupported platforms:
* Windows x86