QImageDrag Class Reference

The QImageDrag provides a drag-and-drop object for tranferring images. More...

#include <qdragobject.h>

Inherits QDragObject.

List of all member functions.

Public Members

• QImageDrag ( QImage image, QWidget * dragSource = 0, const char * name = 0 ) 
• QImageDrag ( QWidget * dragSource = 0, const char * name = 0 ) 
• ~QImageDrag () 
• void setImage ( QImage image ) 
• virtual const char* format ( int i ) const
• virtual QByteArray encodedData ( const char * ) const

Static Public Members

• bool canDecode ( QDragMoveEvent * e ) 
• bool decode ( QDropEvent * e, QImage & i ) 
• bool decode ( QDropEvent * e, QPixmap & i ) 

Detailed Description

Images are offered to the receiving application in multiple formats, determined by the output formats in Qt.

For detailed information about drag-and-drop, see the QDragObject class.

Member Function Documentation

QImageDrag::QImageDrag ( QImage image, QWidget * dragSource = 0, const char * name = 0 )

Creates an image drag object and sets it to image. dragSource must be the drag source, name is the object name.

QImageDrag::QImageDrag ( QWidget * dragSource = 0, const char * name = 0 )

Creates a default text drag object. dragSource must be the drag source, name is the object name.

QImageDrag::~QImageDrag ()

Destroys the image drag object and frees all allocated resources.

bool QImageDrag::canDecode ( QDragMoveEvent * e ) [static]

Returns TRUE if the information in e can be decoded into an image.

See also: decode().

bool QImageDrag::decode ( QDropEvent * e, QImage & img ) [static]

Attempts to decode the dropped information in e into img, returning TRUE if successful.

See also: canDecode().

bool QImageDrag::decode ( QDropEvent * e, QPixmap & pm ) [static]

Attempts to decode the dropped information in e into pm, returning TRUE if successful.

This is a convenience function that converts to pm via a QImage.

See also: canDecode().

void QImageDrag::setImage ( QImage image )

Sets the image to be dragged. You will need to call this if you did not pass the image during construction.

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This file is part of the Qt toolkit, copyright © 1995-98 Troll Tech, all rights reserved.

It was generated from the following files:

• qdragobject.h: 1998/08/19
• qdragobject.cpp: 1998/09/25