Set the chcked state of an item in a menu
void CheckItem( const TCHAR* pszText, BOOL bChecked ); void CheckItem( int nPosition, BOOL bChecked );
The current text of the menu item, which may include an ampersand for a short-cut key.
The new checked state of the menu item. TRUE to show a tick next to the item, FALSE to hide it.
The index of the item in the menu. Note that the index of the first item is 1.
Sets the checked state of an item in the menu, either by name or position.
This function may only be called after Create() has been called. It will have no effect if it is called before Create().