[magick-users] Equivalence of convert command for Magick++

[Elie Zedeck RANDRIAMIANDRIRAY]

Hello guys,

I'm trying to transcribe this convert command (from the Usage example):

convert mask_light.png -negate -background white -channel A -combine 
+channel mask_lighting.png

into the equivalent for Magick++.

I don't know, but I couldn't succeed at all. I've been spending 2 hours 
already just on this. Any help is appreciated.

Elie Zedeck.