I've recently started programming in C for my Casio fx-CG50. I've been trying for a while now but I can't seem to find a way to make the script display images, whether drawings or photographs. I know it can do it, but if anyone could shed any light on the situation, that would be great, thanks

When programming in C you have full control of the video RAM (VRAM for short) which is just a giant array of pixels. As long as you write your image data here and call Bdisp_PutDisp_DD(), you'll have whatever image you want on screen.

The process of converting the image to a suitable format that can be copied to the VRAM can of course be automated. I'm not too familiar with the Prizm SDK (I usually use another SDK) but I think this CopySprite function is often used along with SourceCoder ton convert images to the proper format.

Performance-wise this routine is probably not optimal, though for a full-color RGB565 source there's not much you can do to improve on it. If this becomes a concern, try using a palette first as it will lessen the pressure on RAM/ROM input and copy faster. ^^