Slots are type-safe representations of callback methods and functions. More...

Classes
class	sigc::slot_base
	Base type for slots. More...
class	sigc::slot0< T_return >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot1< T_return, T_arg1 >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot2< T_return, T_arg1, T_arg2 >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot3< T_return, T_arg1, T_arg2, T_arg3 >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot4< T_return, T_arg1, T_arg2, T_arg3, T_arg4 >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot5< T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5 >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot6< T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6 >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot7< T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7 >
	Converts an arbitrary functor to a unified type which is opaque. More...
class	sigc::slot< T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7 >
	Convenience wrapper for the numbered sigc::slot# templates. More...

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Detailed Description

Slots are type-safe representations of callback methods and functions.

A Slot can be constructed from any function, regardless of whether it is a global function, a member method, static, or virtual.

Use the sigc::mem_fun() and sigc::ptr_fun() template functions to get a sigc::slot, like so:

 sigc::slot<void, int> sl = sigc::mem_fun(someobj,& SomeClass::somemethod);

or

 sigc::slot<void, int> sl = sigc::ptr_fun(&somefunction);

or

 m_Button.signal_clicked().connect( sigc::mem_fun(*this, &MyWindow::on_button_clicked) );

The compiler will complain if SomeClass::somemethod, etc. have the wrong signature.

You can also pass slots as method parameters where you might normally pass a function pointer.