Window manager functions are used to define the actions that occur when a menu item, or a mouse or key event is selected. For example, binding mouse button 1 to a client window with the f.raise function allows you to raise the window to the top of your screen whenever you press mouse button 1 within the boundary of that window.
The syntax for naming a function is the same for the
three different sections in the .mwmrc file. The syntax is:
function = function_name [function_args]
where function_name is one of the defined window manager functions, and function_args is a valid argument to the function. If you do not specify a function_args for a function that accepts arguments, all of the possible arguments are applied to the function.