What I am looking for is similar to a couple other questions. The links are:
I am looking for a sort of combination of the two. I'll explain so you don't have to look up these other questions.
I would like a user to be able to upload a picture into a custom post type and be prompted to crop the image with a set aspect ratio before saving. I am trying to keep users from needing to crop images outside WordPress just to make them fit into a slideshow with a set image size.
The custom header functionality is pretty much what I'd like to use, but I am at a loss on how to pull that into either a plugin or a theme and have it execute in a custom post type. The fact that the user is asked to crop the image at a set ratio before proceeding is key.
I am fairly comfortable with custom post types if anyone can just give me a pointer on how to get WordPress to force a custom cropping of an image before saving the custom post.
Thanks in advance to whichever one of you coding geniuses knows/figures out how to do this.