qpngimagepacker(3qt) [centos man page]

QPNGImagePacker(3qt)													      QPNGImagePacker(3qt)

NAME

       QPNGImagePacker - Creates well-compressed PNG animations

SYNOPSIS

       #include <qpngio.h>

   Public Members
       QPNGImagePacker ( QIODevice * iod, int storage_depth, int conversionflags )
       void setPixelAlignment ( int x )
       bool packImage ( const QImage & img )

DESCRIPTION

       The QPNGImagePacker class creates well-compressed PNG animations.

       By using transparency, QPNGImagePacker allows you to build a PNG image from a sequence of QImages.

       Images are added using packImage().

       See also Graphics Classes and Image Processing Classes.

MEMBER FUNCTION DOCUMENTATION

QPNGImagePacker::QPNGImagePacker ( QIODevice * iod, int storage_depth, int conversionflags )
       Creates an image packer that writes PNG data to IO device iod using a storage_depth bit encoding (use 8 or 32, depending on the desired
       quality and compression requirements).

       If the image needs to be modified to fit in a lower-resolution result (e.g. converting from 32-bit to 8-bit), use the conversionflags to
       specify how you'd prefer this to happen.

       See also Qt::ImageConversionFlags.

bool QPNGImagePacker::packImage ( const QImage & img )
       Adds the image img to the PNG animation, analyzing the differences between this and the previous image to improve compression.

void QPNGImagePacker::setPixelAlignment ( int x )
       Aligns pixel differences to x pixels. For example, using 8 can improve playback on certain hardware. Normally the default of 1-pixel
       alignment (i.e. no alignment) gives better compression and performance.

SEE ALSO

       http://doc.trolltech.com/qpngimagepacker.html http://www.trolltech.com/faq/tech.html

COPYRIGHT

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

AUTHOR

       Generated automatically from the source code.

BUGS

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       Thank you.

       The definitive Qt documentation is provided in HTML format; it is located at $QTDIR/doc/html and can be read using Qt Assistant or with a
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       supported by Trolltech.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.  Please include the name of the manual page
       (qpngimagepacker.3qt) and the Qt version (3.3.8).

Trolltech AS							  2 February 2007					      QPNGImagePacker(3qt)