QPNGImagePacker ( QIODevice * iod, int storage_depth, int conversionflags )
void setPixelAlignment ( int x )
bool packImage ( const QImage & img )
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
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.
Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the license file included in the
distribution for a complete license statement.
Generated automatically from the source code.
If you find a bug in Qt, please report it as described in http://doc.trolltech.com/bughowto.html. Good bug
reports help us to help you. 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 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.
If you find errors in this manual page, please report them to firstname.lastname@example.org. Please include the name
of the manual page (qpngimagepacker.3qt) and the Qt version (3.3.8).
Trolltech AS 2 February 2007 QPNGImagePacker(3qt)
All times are GMT -4. The time now is 06:57 PM.
Unix & Linux Forums Content Copyright 1993-2018. All Rights Reserved.