gdk.drag.Drag begin(gdk.surface.Surface surface, gdk.device.Device device, gdk.content_provider.ContentProvider content, gdk.types.DragAction actions, double dx, double dy)Starts a drag and creates a new drag context for it.
This function is called by the drag source. After this call, you probably want to set up the drag icon using the surface returned by [gdk.drag.Drag.getDragSurface].
This function returns a reference to the [gdk.drag.Drag] object, but GTK keeps its own reference as well, as long as the DND operation is going on.
the signalGdk.Drag::dnd-finished signal and delete the data at the source if [gdk.drag.Drag.getSelectedAction] returns [gdk.types.DragAction.Move].
surface | the source surface for this drag |
device | the device that controls this drag |
content | the offered content |
actions | the actions supported by this drag |
dx | the x offset to device's position where the drag nominally started |
dy | the y offset to device's position where the drag nominally started |