using the api, can't create image from array

[ulao]

using the magic namespace I tied to create an image from my bitarray.

Image image(1280,720,"RGB",CharPixell,rgbImage);

but the app freezes and crashes . rgbImages is a char pointer used like so:
char * rgbImage = NULL;
rgbImage = (char *)malloc( size);
size is my step btypes * y. Did I do something wrong?

Do I need to use InitializeMagick ?