unit1.~pas

《Delphi 7应用编程150例》源码（全）

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
    Canvas.Font.Name := 'Times New Roman';
    //这里的字体一定要是TrueType Font
    Canvas.Font.size := 50;
    Canvas.Font.style := [fsItalic,fsBold];
    BeginPath(Canvas.handle);
    //开始捕获 Canvas上绘制的轮廓
    SetBkMode(Canvas.Handle, TRANSPARENT );
    Canvas.TextOut(10,0,Edit1.Text);
    Endpath(Canvas.Handle);
    //结束捕获
    Canvas.Pen.Color := clred;
    StrokePath(Canvas.Handle);
    //将捕获的轮廓用当前的Pen画到Canvas上
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
    Canvas.Font.Name := 'Times New Roman';
    Canvas.Font.Size := 50;
    Canvas.Font.Style := [fsItalic,fsBold];
    BeginPath(Canvas.Handle);
    SetBkMode(Canvas.Handle, TRANSPARENT );
    //试验一下不用这行语句，会得到很有意思的结果
    canvas.Polygon([Point(0,0),Point(Width,0),
                    Point(Width,Height),Point(0,Height),
                    Point(0,0)]); //试验不用该语句看看结果如何
    Canvas.TextOut(10,10,Edit1.Text);
    EndPath(Canvas.Handle);
    SetWindowRgn( Handle, PathToRegion(Canvas.Handle), True );
end;


end.