efficiency question: progress bar

[Slava Paperno]

I need to put up a very light-weight progress bar (e.g. a line three or four pixels thick) in a way that puts the absolutely minimal load on the processor. It appears that in order to look smooth enough, my line has to be updated every 20 milliseconds or so.

What the most efficiet way to achieve this? Resize a vector shape every 20 milliseconds? Paint pixels every 20 milliseconds? Something else?

Thanks!

Slava

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