VB6 Easing-Functions (a more powerful alternative to AnimateWindow)

[Schmidt]

For those who never heard of Easing-Functions, they are used in all kind of
animation-scenarios - these days most often for Browser-(js)Widgets and -Effects.

Here's a link which describes them (with a nice Overview-Chart, which animates its Images on MouseOver):
http://easings.net/en

The underlying math is not that difficult - and I've encapsulated the most interesting Easing-Methods in a little Class.

This Class now also contains an 'Animate'-Method, which you can hand a Control,
a Property-Name, and PropStart - PropEnd-Values, you want to animate (over a given Duration).

For that 'Animate'-Method the little cEasing-Class now makes use of an internal cTimer-Class
(for which I've choosen the first one I was able to find in the CodeBank that supported an Event):
http://www.vbforums.com/showthread.p...ule-2008-06-15

Here is what it looks like in action (animating two Control-Properties at once - the Top- and the Alpha-Property):



Here is the Source-Code: http://vbRichClient.com/Downloads/Easing.zip

Have fun with it...

Olaf

[LaVolpe]

Haven't tried your code, but I think it is restricted to Win8 and higher, due to setting layered window attribute on a child window, correct?

[dreammanor]

Hi, LaVolpe, I tested the above example on XP, and it worked perfectly.

[Schmidt]

Haven't tried your code, but I think it is restricted to Win8 and higher, due to setting layered window attribute on a child window, correct?

Yep, that's what I wrote already in the thread which triggered this contribution:
http://www.vbforums.com/showthread.p...=1#post5172513

@dreammanor
It works on XP, but the Alpha-changes (which happen in parallel to the Movements) are not having any effect.

Olaf