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<hr><p align="left"><small>发信人: strayli (stray), 信区: Delphi <br>

标  题: How to paint the form with a bitmap. <br>

发信站: BBS 水木清华站 (Mon Sep 21 13:54:00 1998) <br>

  <br>

KEYWORDS: paint form bitmap AREA: VCL Programming <br>

  <br>

Q:  How do I paint the background of my form with a bitmap as tiles? <br>

  <br>

A: <br>

  <br>

unit Unit1; <br>

  <br>

interface <br>

  <br>

uses <br>

  SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls, <br>

  Forms, Dialogs; <br>

  <br>

type <br>

  TForm1 = class(TForm) <br>

    procedure FormCreate(Sender: TObject); <br>

    procedure FormPaint(Sender: TObject); <br>

  private <br>

  private <br>

    { Private declarations } <br>

  public <br>

    { Public declarations } <br>

  end; <br>

  <br>

var <br>

  Form1: TForm1; <br>

  Bitmap: TBitmap; <br>

  <br>

implementation <br>

  <br>

{$R *.DFM} <br>

  <br>

procedure TForm1.FormCreate(Sender: TObject); <br>

begin <br>

  Bitmap := TBitmap.Create; <br>

  Bitmap.LoadFromFile('C:\WINDOWS\cars.BMP'); <br>

end; <br>

  <br>

procedure TForm1.FormPaint(Sender: TObject); <br>

var <br>

  X, Y, W, H: LongInt; <br>



begin <br>

  with Bitmap do begin <br>

    W := Width; <br>

    H := Height; <br>

  end; <br>

  Y := 0; <br>

  while Y &lt; Height do begin <br>

    X := 0; <br>

    while X &lt; Width do begin <br>

      Canvas.Draw(X, Y, Bitmap); <br>

      Inc(X, W); <br>

    end; <br>

    Inc(Y, H); <br>

  end; <br>

end; <br>

  <br>

end. <br>

  <br>

-- <br>

※ 来源:·BBS 水木清华站 bbs.net.tsinghua.edu.cn·[FROM: 210.45.208.4] <br>

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