qimagedrag(3qt)

1QImageDrag(3qt)                                                QImageDrag(3qt)
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NAME

6       QImageDrag - Drag and drop object for transferring images
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SYNOPSIS

9       #include <qdragobject.h>
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11       Inherits QDragObject.
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13   Public Members
14       QImageDrag ( QImage image, QWidget * dragSource = 0, const char * name
15           = 0 )
16       QImageDrag ( QWidget * dragSource = 0, const char * name = 0 )
17       ~QImageDrag ()
18       virtual void setImage ( QImage image )
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20   Static Public Members
21       bool canDecode ( const QMimeSource * e )
22       bool decode ( const QMimeSource * e, QImage & img )
23       bool decode ( const QMimeSource * e, QPixmap & pm )
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DESCRIPTION

26       The QImageDrag class provides a drag and drop object for transferring
27       images.
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29       Images are offered to the receiving application in multiple formats,
30       determined by Qt's output formats.
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32       For more information about drag and drop, see the QDragObject class and
33       the drag and drop documentation.
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35       See also Drag And Drop Classes.
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MEMBER FUNCTION DOCUMENTATION

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

39       name = 0 )
40       Constructs an image drag object and sets its data to image. dragSource
41       must be the drag source; name is the object name.
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QImageDrag::QImageDrag ( QWidget * dragSource = 0, const char * name = 0 )

44       Constructs a default image drag object. dragSource must be the drag
45       source; name is the object name.
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QImageDrag::~QImageDrag ()

48       Destroys the image drag object and frees up all allocated resources.
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bool QImageDrag::canDecode ( const QMimeSource * e ) [static]

51       Returns TRUE if the information in mime source e can be decoded into an
52       image; otherwise returns FALSE.
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54       See also decode().
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56       Example: desktop/desktop.cpp.
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bool QImageDrag::decode ( const QMimeSource * e, QImage & img ) [static]

59       Attempts to decode the dropped information in mime source e into img.
60       Returns TRUE if successful; otherwise returns FALSE.
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62       See also canDecode().
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64       Example: desktop/desktop.cpp.
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bool QImageDrag::decode ( const QMimeSource * e, QPixmap & pm ) [static]

67       This is an overloaded member function, provided for convenience. It
68       behaves essentially like the above function.
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70       Attempts to decode the dropped information in mime source e into pixmap
71       pm. Returns TRUE if successful; otherwise returns FALSE.
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73       This is a convenience function that converts to a QPixmap via a QImage.
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75       See also canDecode().
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void QImageDrag::setImage ( QImage image ) [virtual]

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

87       Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the
88       license file included in the distribution for a complete license
89       statement.
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AUTHOR

92       Generated automatically from the source code.
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BUGS

95       If you find a bug in Qt, please report it as described in
96       http://doc.trolltech.com/bughowto.html.  Good bug reports help us to
97       help you. Thank you.
98
99       The definitive Qt documentation is provided in HTML format; it is
100       located at $QTDIR/doc/html and can be read using Qt Assistant or with a
101       web browser. This man page is provided as a convenience for those users
102       who prefer man pages, although this format is not officially supported
103       by Trolltech.
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105       If you find errors in this manual page, please report them to qt-
106       bugs@trolltech.com.  Please include the name of the manual page
107       (qimagedrag.3qt) and the Qt version (3.3.8).
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111Trolltech AS                    2 February 2007                QImageDrag(3qt)