How to check image is opaque?

[Shiro]

I see in MagickCore have method

Code: Select all

IsImageOpaque

but i dont find simular function in Wand. Of course, it's low level operation, but i want to check current wand.
Or MagicCore is the best and only option to achieve this?

[magick]

MagickGetImageAlphaChannel() returns MagickFalse if the image alpha channel is not activated. That is, the image is RGB rather than RGBA or CMYK rather than CMYKA.

[Shiro]

MagickGetImageAlphaChannel() returns MagickFalse if the image alpha channel is not activated. That is, the image is RGB rather than RGBA or CMYK rather than CMYKA.

Thanks!