g-object, common-lisp:standard-object, common-lisp:t

None

The gdk-drag-context class and the correspondig functions provide a low level interface for drag and drop. The X backend of GDK supports both the Xdnd and Motif drag and drop protocols transparently, the Win32 backend supports the WM_DROPFILES protocol.

GTK provides a higher level abstraction based on top of these functions, and so they are not normally needed in GTK applications. See the Drag and Drop section of the GTK documentation for more information.

The "action-changed" signal

 lambda (context action)    :run-last    

A new action is being chosen for the drag and drop operation. The signal will only be emitted if the gtk-drag-context object manages the drag and drop operation. See the gdk-drag-context-manage-dnd function for more information. Since 3.20

context

The gdk-drag-context object on which the signal is emitted.

action

The gdk-drag-action value currently chosen.

The "cancel" signal

 lambda (context reason)    :run-last    

The drag and drop operation was cancelled. The signal will only be emitted if the gdk-drag-context object manages the drag and drop operation. See the gdk-drag-context-manage-dnd function for more information. Since 3.20

context

The gdk-drag-context object on which the signal is emitted.

reason

The gdk-drag-cancel-reason value the drag context was cancelled.

The "dnd-finished" signal

 lambda (context)    :run-last    

The drag and drop operation was finished, the drag destination finished reading all data. The drag source can now free all miscellaneous data. This signal will only be emitted if the gdk-drag-context manages the drag and drop operation. See the gdk-drag-context-manage-dnd function for more information. Since 3.20

context

The gdk-drag-context object on which the signal is emitted.

The "drop-performed" signal

 lambda (context time)    :run-last    

The drag and drop operation was performed on an accepting client. This signal will only be emitted if the gdk-drag-context manages the drag and drop operation. See the gdk-drag-context-manage-dnd function for more information. Since 3.20

context

The gdk-drag-context object on which the signal is emitted.

time

An integer with the time at which the drop happened.