Documentation

DragSource.connectDragCancel

gtk drag_source DragSource

Connect to DragCancel signal.

Emitted on the drag source when a drag has failed.

The signal handler may handle a failed drag operation based on the type of error. It should return true if the failure has been handled and the default "drag operation failed" animation should not be shown.

class DragSource
ulong
connectDragCancel
(
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] : gdk.drag.Drag)
)
)
&&
(
Parameters!T.length < 2 ||
(
ParameterStorageClassTuple!T[1] == ParameterStorageClass.none &&
is(Parameters!T[1] == gdk.types.DragCancelReason)
)
)
&&
(
Parameters!T.length < 3 ||
(
ParameterStorageClassTuple!T[2] == ParameterStorageClass.none &&
is(Parameters!T[2] : gtk.drag_source.DragSource)
)
)
&&
Parameters!T.length < 4
)

Parameters

callback T

signal callback delegate or function to connect

bool callback(gdk.drag.Drag drag, gdk.types.DragCancelReason reason, gtk.drag_source.DragSource dragSource)

drag the gdk.drag.Drag object (optional)

reason information on why the drag failed (optional)

dragSource the instance the signal is connected to (optional)

Returns true if the failed drag operation has been already handled

after Flag!"After"

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

Return Value

Type: ulong

Signal ID

gtk drag_source DragSource constructorsfunctions
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