Write into PNG format

[wizard29]

Hi, everybody.

I try to save an image into different file formats and show progress of the operation.
When I try to save an image into the PNG file format I cann't show the progress. The progress monitor handler is called the once for the PNG.

I use Magick++ and MagicCore interfaces.

It looks like a bug.
How to avoid this problem?

[glennrp]

The progress monitor is called once per pass when writing a PNG. If you're writing non-interlaced PNG files, then there is only one pass.
I've updated the SVN repository, revision 17100, to make it report once per row instead of once per pass.

[wizard29]

Thank you!