QImageDrag Class Reference
The QImageDrag class provides a drag and drop object for
transferring 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 )
Static Public Members
bool
decode ( const QMimeSource * e, QImage & img )
bool
decode ( const QMimeSource * e, QPixmap & pm )
Detailed Description
The QImageDrag class provides a drag and drop object for
transferring images.
Images are offered to the receiving application in multiple
formats, determined by Qt's output
formats.
For more information about drag and drop, see the QDragObject
class and the drag and drop documentation.
See also Drag And Drop Classes.
Member Function Documentation
QImageDrag::QImageDrag ( QImage image, QWidget * dragSource = 0, const char * name = 0 )
Constructs an image drag object and sets its data to image. dragSource must be the drag source; name is the object name.
QImageDrag::QImageDrag ( QWidget * dragSource = 0, const char * name = 0 )
Constructs a default image drag object. dragSource must be the
drag source; name is the object name.
QImageDrag::~QImageDrag ()
Destroys the image drag object and frees up all allocated
resources.
bool QImageDrag::canDecode ( const QMimeSource * e ) [static]
Returns TRUE if the information in mime source e can be decoded
into an image; otherwise returns FALSE.
See also decode().
Example: desktop/desktop.cpp.
bool QImageDrag::decode ( const QMimeSource * e, QImage & img ) [static]
Attempts to decode the dropped information in mime source e
into img. Returns TRUE if successful; otherwise returns FALSE.
See also canDecode().
Example: desktop/desktop.cpp.
bool QImageDrag::decode ( const QMimeSource * e, QPixmap & pm ) [static]
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
Attempts to decode the dropped information in mime source e
into pixmap pm. Returns TRUE if successful; otherwise returns
FALSE.
This is a convenience function that converts to a QPixmap via a
QImage.
See also canDecode().
void QImageDrag::setImage ( QImage image ) [virtual]
Sets the image to be dragged to image. You will need to call
this if you did not pass the image during construction.
This file is part of the Qt toolkit.
Copyright © 1995-2002
Trolltech. All Rights Reserved.
