connectDragCancel
fun connectDragCancel(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (<Error class: unknown class>, <Error class: unknown class>) -> Boolean): <Error class: unknown class>
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.
Parameters
connectFlags
A combination of ConnectFlags
handler
the Callback to connect. Params: drag the GdkDrag object; reason information on why the drag failed. Returns true if the failed drag operation has been already handled