Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Array of TBitmap

Posted on 2004-09-24
3
1,027 Views
Last Modified: 2008-02-01
Hi!

I have a TBitmap array with some BMPs; The problem is to access these BMPs (I need to show then in TImage component), because it shows blank.

Can anybody help please?

Thanx.
0
Comment
Question by:nany
  • 2
3 Comments
 
LVL 12

Accepted Solution

by:
esoftbg earned 250 total points
ID: 12145144
unit Unit1_Q_21144011;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, ExtDlgs, Buttons, Spin, Tabs;

type
  TForm1 = class(TForm)
    SpeedButton1: TSpeedButton;
    OpenPicDlg: TOpenPictureDialog;
    ImgLoad: TImage;
    ImgArr: TImage;
    Scroller: TScroller;
    procedure SpeedButton1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure ScrollerClick(Sender: TObject);
  private   { Private declarations }
    BMPArr:   array of TBitmap;
  public    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.SpeedButton1Click(Sender: TObject);
var
  I:      Integer;
begin
  if OpenPicDlg.Execute then
  begin
    I := Length(BMPArr);
    SetLength(BMPArr, I+1);
    BMPArr[I] := TBitmap.Create;
    BMPArr[I].LoadFromFile(OpenPicDlg.FileName);
    ImgLoad.Picture.Bitmap.Assign(BMPArr[I]);
    if (I=0) then
      ImgArr.Picture.Bitmap.Assign(BMPArr[I]);
    Scroller.Max := I;
  end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  SetLength(BMPArr, 0);
end;

procedure TForm1.FormDestroy(Sender: TObject);
var
  I:      Integer;
begin
  try
    for I := 0 to Length(BMPArr)-1 do
      BMPArr[I].Free;
  finally
    SetLength(BMPArr, 0);
  end;
end;

procedure TForm1.ScrollerClick(Sender: TObject);
var
  I:      Integer;
begin
  I := Scroller.Position;
  ImgArr.Picture.Bitmap.Assign(BMPArr[I]);
end;

end.
0
 

Author Comment

by:nany
ID: 12145406
thanks esoftbg!
0
 
LVL 12

Expert Comment

by:esoftbg
ID: 12145536
nany, you are welcome !
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question