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标题要长!!!!!!!!!!!!!求助!!!!!!!!!!!!!

Lancy1988 发布于 2012-03-15 11:56, 519 次点击
我用了button ,openpicturedialog,image空间,做了个小小编程,现在我要在image里打开的图片上画线,是单击鼠标左键开始画线,拉动一段距离后,单击右键完成画线,
求高手给个程序代码




procedure TForm1.Button1Click(Sender: TObject);
begin
if openpicturedialog1.Execute then
image1.Picture.LoadFromFile(openpicturedialog1.FileName);
end;
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