Surface.connectRender

gulong connectRender(T)(T callback,  Flag!"After" after =  No.After) if (isCallable!T
    &&  is(ReturnType!T ==  bool)
   && (Parameters!T.length <  1 || (ParameterStorageClassTuple!T[0]  ==  ParameterStorageClass.none &&  is(Parameters!T[0]  ==  cairo.region.Region)))
   && (Parameters!T.length <  2 || (ParameterStorageClassTuple!T[1]  ==  ParameterStorageClass.none &&  is(Parameters!T[1] :  gdk.surface.Surface)))
   &&  Parameters!T.length <  3)

Connect to Render signal.

Emitted when part of the surface needs to be redrawn.

Parameters

`callback`	signal callback delegate or function to connect `bool callback(cairo.region.Region region, gdk.surface.Surface surface)` `region` the region that needs to be redrawn (optional) `surface` the instance the signal is connected to (optional) `Returns` true to indicate that the signal has been handled
`after`	Yes.After to execute callback after default handler, No.After to execute before (default)

Returns

Signal ID