OpenDCL 6.0 Development Notes

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For that purpose, your method might be fine.  What happens in your example if you switch to a different window (that covers your dialog), then back?  hat is you move the dialog partially off screen, then back on?  If those cases work in all your supported operating systems, then I think you are safe.

Ah good.  Works on xp will try Vista next week.

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I tested with a tab control that uses visual styles, but I didn't think to test on one that doesn't. I've had to do a little bit of refactoring, but I think I've come up with a slightly improved system now that works reliably in all cases. Please test again in Alpha 12 and let me know the results.

Transparant contols on tabs in Alpha 12 are working properly now. Cheers.