DragSource.connectDragBegin

Connect to DragBegin signal.

Emitted on the drag source when a drag is started.

It can be used to e.g. set a custom drag icon with gtk.drag_source.DragSource.setIcon.

class DragSource
ulong
connectDragBegin
(
T
)
(,
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] : gdk.drag.Drag)
)
)
&&
(
Parameters!T.length < 2 ||
(
ParameterStorageClassTuple!T[1] == ParameterStorageClass.none &&
is(Parameters!T[1] : gtk.drag_source.DragSource)
)
)
&&
Parameters!T.length < 3
)

Parameters

callback T

signal callback delegate or function to connect

void callback(gdk.drag.Drag drag, gtk.drag_source.DragSource dragSource)

drag the gdk.drag.Drag object (optional)

dragSource the instance the signal is connected to (optional)

after Flag!"After"

Yes.After to execute callback after default handler, No.After to execute before (default)

Return Value

Type: ulong

Signal ID