I've written three programs to simulate eye movements during clinical testing for paralyzed eye muscles. The programs use JPEG files for the eyeballs and the face/eyelids. The face/eyelid graphics use masks so that the eyeballs will display in the transparent regions between the eyelids.

The programs work beautifully on the Mac, but when recompiled on Windows XP, the eyeball graphics display in front of the face, and all of the graphics flicker horribly on each refresh.

I haven't used any platform-specific code -- it's all straightforward REALbasic code that changes the position of the eyeballs drawn into an offscreen image, draws the face over that offscreen image, then copies the offscreen image to an on-screen canvas. However, I'm fairly ignorant about Windows graphics. Is there anything special that must be handled differently to display graphics correctly on Windows?

Thanks in advance for your help.

-Scott

Dr. Scott Steinman
Brought to you by a grant from the Steinman Foundation (Thanks, Mom and Dad!)
Recommended by Major University Studies Over the Leading Brand
steinman at midsouth dot rr dot com

I hope I die peacefully in my sleep like my grandfather. . .not screaming in terror like his passengers. -- "Deep Thoughts", Jack Handy

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