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旧 2009-05-06, 02:31 PM   #1
yang686526
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默认 【转帖】how to draw more fas

how to draw more fast?
how to draw more fast?
thank you so much for your reply.
but i need to use that way now.
may i know how to draw more fast like dwgviewer?
i tried to use a memory buffer not to regenerate but it was too hard to implement.
could you inform me of the way like dlp?
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