怎样在第二次绘图时清掉上次的图（canvas）(0分)

晴

晴

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GUEST, unregistred user!

• 2002-01-22

• #1

var
coordinate:array [0..1440] of tpoint;
i:integer;
begin
...
Canvas.Polyline(coordinate);
...
end;

 

S

szchengyu

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GUEST, unregistred user!

• 2002-01-22

• #2

Canvas.FillRect(...);

 

卷

卷起千堆雪tyn

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GUEST, unregistred user!

• 2002-01-22

• #3

Canvas.FillRect(Canvas.ClipRect);

 

晴

晴

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GUEST, unregistred user!

• 2002-01-22

• #4

谢谢你呀，卷起千堆雪tyn
另外：也谢谢szchengyu。
我的问题解决了。心情比较愉快。

 

晴

晴

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-01-23

• #5

接受答案了.

 

L

lzjlzj

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GUEST, unregistred user!

• 2003-09-25

• #6

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