I resolved the problem to write APNG image format
now can you help me to display on QT?

Now i use GrandParadiso Firefox to read this image....

QT 4.4 can write APNG image format!

To read
Install Firefox 3 or GrandParadiso , Opera 9.5 if the image here is not animated and you see only the first frame....

http://en.wikipedia.org/wiki/Animate...twork_Graphics



to write this image on QT4.4

svn co http://fop-miniscribus.googlecode.co...PNG_assembler/ APNG_assembler

console application .....