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< td align = "right" valign = "center" > < img src = "logo32.png" align = "right" width = "64" height = "32" border = "0" > < / td > < / tr > < / table > < h1 align = center > TQImageDrag Class Reference< / h1 >
< p > The TQImageDrag class provides a drag and drop object for
transferring images.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "tqdragobject-h.html" > tqdragobject.h< / a > > < / tt >
< p > Inherits < a href = "tqdragobject.html" > TQDragObject< / a > .
< p > < a href = "tqimagedrag-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > < a href = "#TQImageDrag" > < b > TQImageDrag< / b > < / a > ( TQImage image, TQWidget * dragSource = 0, const char * name = 0 )< / li >
< li class = fn > < a href = "#TQImageDrag-2" > < b > TQImageDrag< / b > < / a > ( TQWidget * dragSource = 0, const char * name = 0 )< / li >
< li class = fn > < a href = "#~TQImageDrag" > < b > ~TQImageDrag< / b > < / a > ()< / li >
< li class = fn > virtual void < a href = "#setImage" > < b > setImage< / b > < / a > ( TQImage image )< / li >
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< h2 > Static Public Members< / h2 >
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< li class = fn > bool < a href = "#canDecode" > < b > canDecode< / b > < / a > ( const TQMimeSource * e )< / li >
< li class = fn > bool < a href = "#decode" > < b > decode< / b > < / a > ( const TQMimeSource * e, TQImage & img )< / li >
< li class = fn > bool < a href = "#decode-2" > < b > decode< / b > < / a > ( const TQMimeSource * e, TQPixmap & pm )< / li >
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< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
< p > The TQImageDrag class provides a drag and drop object for
transferring images.
< p >
< p > Images are offered to the receiving application in multiple
formats, determined by TQt's < a href = "tqimage.html#outputFormats" > output
formats< / a > .
< p > For more information about drag and drop, see the < a href = "tqdragobject.html" > TQDragObject< / a >
class and the < a href = "dnd.html" > drag and drop documentation< / a > .
< p > See also < a href = "draganddrop.html" > Drag And Drop Classes< / a > .
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQImageDrag" > < / a > TQImageDrag::TQImageDrag ( < a href = "tqimage.html" > TQImage< / a > image, < a href = "tqwidget.html" > TQWidget< / a > * dragSource = 0, const char * name = 0 )
< / h3 >
Constructs an image drag object and sets its data to < em > image< / em > . < em > dragSource< / em > must be the drag source; < em > name< / em > is the object name.
< h3 class = fn > < a name = "TQImageDrag-2" > < / a > TQImageDrag::TQImageDrag ( < a href = "tqwidget.html" > TQWidget< / a > * dragSource = 0, const char * name = 0 )
< / h3 >
Constructs a default image drag object. < em > dragSource< / em > must be the
drag source; < em > name< / em > is the object name.
< h3 class = fn > < a name = "~TQImageDrag" > < / a > TQImageDrag::~TQImageDrag ()
< / h3 >
Destroys the image drag object and frees up all allocated
resources.
< h3 class = fn > bool < a name = "canDecode" > < / a > TQImageDrag::canDecode ( const < a href = "tqmimesource.html" > TQMimeSource< / a > * e )< tt > [static]< / tt >
< / h3 >
Returns TRUE if the information in mime source < em > e< / em > can be decoded
into an image; otherwise returns FALSE.
< p > < p > See also < a href = "#decode" > decode< / a > ().
< p > Example: < a href = "desktop-example.html#x1731" > desktop/desktop.cpp< / a > .
< h3 class = fn > bool < a name = "decode" > < / a > TQImageDrag::decode ( const < a href = "tqmimesource.html" > TQMimeSource< / a > * e, < a href = "tqimage.html" > TQImage< / a > & img )< tt > [static]< / tt >
< / h3 >
Attempts to decode the dropped information in mime source < em > e< / em >
into < em > img< / em > . Returns TRUE if successful; otherwise returns FALSE.
< p > < p > See also < a href = "#canDecode" > canDecode< / a > ().
< p > Example: < a href = "desktop-example.html#x1732" > desktop/desktop.cpp< / a > .
< h3 class = fn > bool < a name = "decode-2" > < / a > TQImageDrag::decode ( const < a href = "tqmimesource.html" > TQMimeSource< / a > * e, < a href = "tqpixmap.html" > TQPixmap< / a > & pm )< tt > [static]< / tt >
< / h3 >
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
< p > Attempts to decode the dropped information in mime source < em > e< / em >
into pixmap < em > pm< / em > . Returns TRUE if successful; otherwise returns
FALSE.
< p > This is a convenience function that converts to a < a href = "tqpixmap.html" > TQPixmap< / a > via a
< a href = "tqimage.html" > TQImage< / a > .
< p > < p > See also < a href = "#canDecode" > canDecode< / a > ().
< h3 class = fn > void < a name = "setImage" > < / a > TQImageDrag::setImage ( < a href = "tqimage.html" > TQImage< / a > image )< tt > [virtual]< / tt >
< / h3 >
Sets the image to be dragged to < em > image< / em > . You will need to call
this if you did not pass the image during construction.
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