image transitions

using bitblt, or the like is there a way to put 2 images..

side by side
1 and 2
like
12
then make a transition effect between the two

so like if you have
a blue and a yellow image, it'll fade from blue to yellow

but i need this to work on images.. and i need it to work from the TOP to bottom, LEFT to right or RIGHT to left or bottom to top. etc


i just need to blend 2 images really so it makes a cool transition effect

if it uses bitblt- aye.. thats what i want =)

Take a peek at this tutorial ... about half-way down under the section entitled "More on Bitmaps" ...
www.vbexplorer.com/show.asp?id=190

It talks about how to grab the actual color info of a bitmap, do manipulations on them, and put them back ... using standard API calls ... might be a useful for what you are attempting.

Now, you'll just need to figure out the proper loops and maths.

-Bryk