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POAnimated "glow" in owner-drawn Progress Bar (ListView/DataGridView)
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copied!<p>I've noticed that the bog-standard ProgressBar in .NET 2.0 (Winforms) does show up as the fancy animated glowing bar in Vista; however, using the ProgressBarRenderer (as one generally has to when trying to draw a progress bar in an owner-drawn list view, grid view, or other such control) just gives the visual style without the pretty animation.</p> <p>I guess it was silly to expect that this would just magically work - I imagine the native control in Vista must have some sort of embedded timer or thread that obviously doesn't exist when drawing a static image. I did see that if you redraw a ProgressBar control several times in succession (using DrawToBitmap) that you can actually see the distinct stages of the animated glow, so I experimented with using a timer to keep redrawing automatically, but something's just not quite right about the look, and it also eats up a lot more CPU time than an actual ProgressBar does.</p> <p>This seems to leave me with two sub-standard options: a) Use the ProgressBarRenderer and end up with a Vista "look" but no animation; or b) Use a timer to continually redraw several ProgressBars to bitmaps, and waste CPU cycles to get it looking better but still not perfect.</p> <p>I was wondering if anybody has had experience embedding progress bars inside owner-drawn controls and might know of a better way than the two options above - something that can accurately reproduce the glow/glint without relying on timers and/or hammering the CPU.</p>

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