c_gdk_drag_motion

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
gboolean function(GdkDragContext* context, GdkWindow* destWindow, GdkDragProtocol protocol, gint xRoot, gint yRoot, GdkDragAction suggestedAction, GdkDragAction possibleActions, guint32 time) c_gdk_drag_motion;

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