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diff --git a/doc/man/man3/tqpngimagepacker.3qt b/doc/man/man3/tqpngimagepacker.3qt new file mode 100644 index 000000000..fdf4a4b5a --- /dev/null +++ b/doc/man/man3/tqpngimagepacker.3qt @@ -0,0 +1,72 @@ +'\" t +.TH QPNGImagePacker 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*- +.\" Copyright 1992-2007 Trolltech ASA. 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 +.SH SYNOPSIS +\fC#include <ntqpngio.h>\fR +.PP +.SS "Public Members" +.in +1c +.ti -1c +.BI "\fBQPNGImagePacker\fR ( QIODevice * iod, int storage_depth, int conversionflags )" +.br +.ti -1c +.BI "void \fBsetPixelAlignment\fR ( int x )" +.br +.ti -1c +.BI "bool \fBpackImage\fR ( const QImage & img )" +.br +.in -1c +.SH DESCRIPTION +The QPNGImagePacker class creates well-compressed PNG animations. +.PP +By using transparency, QPNGImagePacker allows you to build a PNG image from a sequence of QImages. +.PP +Images are added using packImage(). +.PP +See also Graphics Classes and Image Processing Classes. +.SH MEMBER FUNCTION DOCUMENTATION +.SH "QPNGImagePacker::QPNGImagePacker ( QIODevice * iod, int storage_depth, int conversionflags )" +Creates an image packer that writes PNG data to IO device \fIiod\fR using a \fIstorage_depth\fR bit encoding (use 8 or 32, depending on the desired quality and compression requirements). +.PP +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 \fIconversionflags\fR to specify how you'd prefer this to happen. +.PP +See also Qt::ImageConversionFlags. +.SH "bool QPNGImagePacker::packImage ( const QImage & img )" +Adds 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 )" +Aligns pixel differences to \fIx\fR 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. + +.SH "SEE ALSO" +.BR http://doc.trolltech.com/qpngimagepacker.html +.BR http://www.trolltech.com/faq/tech.html +.SH COPYRIGHT +Copyright 1992-2007 Trolltech ASA, 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 help us to help you. Thank you. +.P +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 web browser. This man page is provided as a convenience for those +users who prefer man pages, although this format is not officially +supported by Trolltech. +.P +If you find errors in this manual page, please report them to +.BR qt-bugs@trolltech.com . +Please include the name of the manual page (tqpngimagepacker.3qt) and the Qt +version (3.3.8). |