如何在delphi中画线条,画矩形框
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在form中的画布(canvas)上可以作图,例如:
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
with canvas do begin
MoveTo(100,0); // 起点
LineTo(100,100);
lineto(300,50);
end;
end;
end.
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