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QDropEvent Class Reference

The QDropEvent class provides an event which is sent when a drag and drop action is completed. More...

#include <QDropEvent>

Inherits QEvent.

Inherited by QDragMoveEvent.

Writable Properties

Public Functions


Detailed Description

The QDropEvent class provides an event which is sent when a drag and drop action is completed.

When a widget accepts drop events, it will receive this event if it has accepted the most recent QDragEnterEvent or QDragMoveEvent sent to it.

The drop event contains a proposed action, available from proposedAction(), for the widget to either accept or ignore. If the action can be handled by the widget, you should call the acceptProposedAction() function. Since the proposed action can be a combination of QDrag::DropAction values, it may be useful to either select one of these values as a default action or ask the user to select their preferred action. If the required drop action is different to the proposed action, you can call setDropAction() instead of acceptProposedAction() to complete the drop operation.

The mimeData() function provides the data dropped on the widget in a QMimeData object. This contains information about the MIME type of the data in addition to the data itself.

See also QMimeData, QDrag, and Drag and Drop.


Member Function Documentation

QDropEvent::QDropEvent ( const QPoint & pos, QDrag::DropActions actions, const QMimeData * data, Type type = Drop )

Constructs a drop event of a certain type corresponding to a drop at the given point in a widget. The drag data is stored in data.

QDropEvent::~QDropEvent ()

void QDropEvent::accept ()

void QDropEvent::acceptProposedAction ()

QDrag::DropAction QDropEvent::dropAction () const

const QMimeData * QDropEvent::mimeData () const

const QPoint & QDropEvent::pos () const

Returns the position where the drop was made.

QDrag::DropActions QDropEvent::possibleActions () const

QDrag::DropAction QDropEvent::proposedAction () const

void QDropEvent::setDropAction ( QDrag::DropAction action )

QWidget * QDropEvent::source () const

If the source of the drag operation is a widget in this application, this function returns that source; otherwise it returns 0. The source of the operation is the first parameter to the QDrag object used instantiate the drag.

This is useful if your widget needs special behavior when dragging to itself.

See also QDrag::QDrag().


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Qt 4.0.0-b1