A TQIconDrag object is used to maintain information about the positions of dragged items and the data associated with the dragged items. TQIconViews are able to use this information to paint the dragged items in the correct positions. Internally TQIconDrag stores the data associated with drag items in TQIconDragItem objects.
If you want to use the extended drag-and-drop functionality of TQIconView, create a TQIconDrag object in a reimplementation of TQIconView::dragObject(). Then create a TQIconDragItem for each item which should be dragged, set the data it represents with TQIconDragItem::setData(), and add each TQIconDragItem to the drag object using append().
The data in TQIconDragItems is stored in a TQByteArray and is mime-typed (see TQMimeSource and the Drag and Drop overview). If you want to use your own mime-types derive a class from TQIconDrag and reimplement format(), encodedData() and canDecode().
The fileiconview example program demonstrates the use of the TQIconDrag class including subclassing and reimplementing dragObject(), format(), encodedData() and canDecode(). See the files \fCqt/examples/fileiconview/tqfileiconview.h\fR and \fCqt/examples/fileiconview/tqfileiconview.cpp\fR.
Append the TQIconDragItem, \fIi\fR, to the TQIconDrag object's list of items. You must also supply the geometry of the pixmap, \fIpr\fR, and the textual caption, \fItr\fR.
