The LM_CheckBox class is a check box that can be marked on or off. To create a new button, you would use the following function:
Creates a new LM_CheckBox object that can then be added to a dialog or toolbar.
Return value (LM_CheckBox): the newly-created check box label (string): a text label to appear at the side of the check box msg (int): a message value to be triggered when the button is pressedSets the value of the check box.
Return value: none value (bool): true to set the box checked, false for uncheckedReturns whether the box is checked or not.
Return value (bool): returns tru if the box is checked, false otherwise