dll vb excel -> c program

[zekmek]

hye everybody,

i need to cross a (variant) type from excel visual basic to microsoft visual c. so i'm using a dll because i need to take a matrix from to my own code in C. i know i can do that with only a vector (single to float type) but how can i do with a tridimensionnal matrix ?
i have tested with variant in vb excel and float in c but it didn't work...

Thanks for your help.