'\" t .TH QPNGImagePacker 3qt "17 July 2003" "Trolltech AS" \" -*- nroff -*- .\" Copyright 1992-2001 Trolltech AS. All rights reserved. See the .\" license file included in the distribution for a complete license .\" statement. .\" .ad l .nh .SH NAME QPNGImagePacker \- Creates well-compressed PNG animations .br .PP \fC#include \fR .PP Inherits QPNGImageWriter. .PP .SS "Public Members" .in +1c .ti -1c .BI "\fBQPNGImagePacker\fR ( QIODevice *, int " "depth" ", int convflags ) " .br .ti -1c .BI "void \fBsetPixelAlignment\fR ( int x ) " .br .ti -1c .BI "bool \fBpackImage\fR ( const QImage & img ) " .br .in -1c .SH DESCRIPTION Creates well-compressed PNG animations. .PP By using transparency, QPNGImagePacker allows you to build a PNG image from a sequence of QImages. .SH MEMBER FUNCTION DOCUMENTATION .SH "QPNGImagePacker::QPNGImagePacker ( QIODevice * iod, int storage_depth, int conversionflags )" Create an image packer that writes PNG data to \fIiod,\fR using a \fIstorage_depth\fR bit encoding (use 8 or 32, depending on the desired quality and compression requirements). .SH "bool QPNGImagePacker::packImage ( const QImage & img )" Add the image \fIimg\fR to the PNG animation, analyzing the differences between this and the previous image to improve compression. .SH "void QPNGImagePacker::setPixelAlignment ( int x )" Align pixel differences to \fIx\fR pixels. For example, using 8 can improve playback on certain hardware. Normally the default of 1-pixel alignment (ie. no alignment) gives bets compression and performance. .SH "SEE ALSO" .BR http://doc.trolltech.com/qpngimagepacker.html .BR http://www.trolltech.com/faq/tech.html .SH COPYRIGHT Copyright 1992-2001 Trolltech AS, http://www.trolltech.com. See the license file included in the distribution for a complete license statement. .SH AUTHOR Generated automatically from the source code. .SH BUGS If you find a bug in Qt, please report it as described in .BR http://doc.trolltech.com/bughowto.html . Good bug reports make our job much simpler. Thank you. .P In case of content or formattting problems with this manual page, please report them to .BR qt-bugs@trolltech.com . Please include the name of the manual page (qpngimagepacker.3qt) and the Qt version (2.3.7).
