GestureDrag.connectDragBegin

gulong connectDragBegin(T)(T callback,  Flag!"After" after =  No.After) if (isCallable!T
    &&  is(ReturnType!T ==  void)
   && (Parameters!T.length <  1 || (ParameterStorageClassTuple!T[0]  ==  ParameterStorageClass.none &&  is(Parameters!T[0]  ==  double)))
   && (Parameters!T.length <  2 || (ParameterStorageClassTuple!T[1]  ==  ParameterStorageClass.none &&  is(Parameters!T[1]  ==  double)))
   && (Parameters!T.length <  3 || (ParameterStorageClassTuple!T[2]  ==  ParameterStorageClass.none &&  is(Parameters!T[2] :  gtk.gesture_drag.GestureDrag)))
   &&  Parameters!T.length <  4)

Connect to DragBegin signal.

Emitted whenever dragging starts.

Parameters

`callback`	signal callback delegate or function to connect `void callback(double startX, double startY, gtk.gesture_drag.GestureDrag gestureDrag)` `startX` X coordinate, relative to the widget allocation (optional) `startY` Y coordinate, relative to the widget allocation (optional) `gestureDrag` the instance the signal is connected to (optional)
`after`	Yes.After to execute callback after default handler, No.After to execute before (default)

Returns

Signal ID