Legacy ImageMagick Discussions Archive

why MagickSetImageVirtualPixelMethod(magick_wand,VirtualPixelMethod) always return 0? and the result is always print 0,whenever I use GrayVirtualPixelMethod or WhiteVirtualPixelMethod or TransparentVirtualPixelMethod etc enum for the 2nd parameter.

You found a bug. We will have a patch available by sometime tomorrow in ImageMagick 6.4.6-7. Thanks.

i send a message to u,magick i am waitting for your reply online.
if u could,could u release ImageMagick 6.4.6-7 on Nov 30.I hope i could solve my problem earlier.

I was sure that the function was returning true but when I tested it earlier this morning it was returning false.
I have now installed 6.4.6-7 and tried it again and
MagickSetImageVirtualPixelMethod(mw,TransparentVirtualPixelMethod)
returns false.

Pete

MagickSetImageVirtualPixelMethod() returns the previous setting. The first time its called it returns UndefinedVirtualPixelMethod since that is the default setting. The next time its called it returns whatever setting you supplied in the first call (e.g. TransparentVirtualPixelMethod).

thanks,it works well:)