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pixel get color painfully slow (vista problem?)

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IsNull

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Posted: May 11th, 2010, 6:48 pm

Joined: May 10th, 2007, 10:54 am
Posts: 649
Location: .switzerland

PixelGetColor has always to get a new snapshot of the hdc for each call. So, if you use it in a Loop, it does much redundant work:
Actually it would be much faster, if you take this snap by yourself (only once) and then search the bitmap for your Pixels. With GDI+ you can do this.

If there is the need, I can make an example.

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