Solved

flip screen

Posted on 2001-06-23
1
2,457 Views
Last Modified: 2010-10-05
how do i flip the screen UPSIDE - DOWN and RETURN it to normal in a button click command?
0
Comment
Question by:stevenglass
1 Comment
 
LVL 3

Accepted Solution

by:
f15iaf earned 100 total points
ID: 6221643
unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  ExtCtrls, jpeg;

type
  TForm1 = class(TForm)
    Image1: TImage;
    procedure FormShow(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Image1Click(Sender: TObject);
  private
    { Private declarations }
  public
    can:Tcanvas;
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.FormShow(Sender: TObject);
var
        y:integer;
begin
        y:=0;
        for y:=0 to can.ClipRect.bottom do
        begin
                image1.Canvas.CopyRect(rect(0,y-1,can.ClipRect.Right,y),can,rect(0,can.ClipRect.bottom-y+1,can.ClipRect.Right,can.ClipRect.bottom-y));
        end;

end;

procedure TForm1.FormCreate(Sender: TObject);
begin
        borderstyle:=bsnone;
        formstyle:=fsstayontop;
        image1.Align:=alclient;
        left:=0;
        top:=0;
        height:=screen.height;
        width:=screen.width;
        can:=Tcanvas.create;
        can.handle:=getdc(0);
end;

procedure TForm1.Image1Click(Sender: TObject);
begin
        close;
end;

end.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

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

Title # Comments Views Activity
oracle global variables 4 76
Convert GUI app into console app for Win32 Env 5 109
Delphi: barcode reading on android platform 1 51
Firemonkey BASS_Init into a thread 17 30
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…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

809 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