Removes the checkmark
displayed in front of the menu option (popup menu or drop-down menu).
// Remove the checkmark displayed in front of "OPT_IconBar"
MenuUnMark(OPT_IconBar)
Syntax
MenuUnmark([<Window>, ] <Menu option>)
<Window>: Optional window name
Name of the window containing the menu option to unmark.
If this parameter is not specified, MenuUnMark will handle the current window.
<Menu option>: Option name
Name of the menu option to unmark. This name is defined in the description window of the menu option.
Remark: This name must be specified without quotes.
Remarks
This function is equivalent to the
Checked property.