whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1541)

Database (90)
Files (137)
Forms (107)
Graphic (114)
IDE (21)
Indy (5)
Internet / LAN (130)
IntraWeb (0)
Math (76)
Misc (126)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (266)
VCL (242)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

45 Visitors Online


 
...mirror a bitmap?
Autor: Rainer Kümmerle
Homepage: http://www.thinklazy.de
[ Print tip ]  

Tip Rating (4):  
     


procedure flip_horizontal(Quelle, Ziel: TBitMap);
begin
  
Ziel.Assign(nil);
  Ziel.Width  := Quelle.Width;
  Ziel.Height := Quelle.Height;
  StretchBlt(Ziel.Canvas.Handle, 0, 0, Ziel.Width, Ziel.Height, Quelle.Canvas.Handle,
    0, Quelle.Height, Quelle.Width, Quelle.Height, srccopy);
end;

procedure flip_vertikal(Quelle, Ziel: TBitMap);
begin
  
Ziel.Assign(nil);
  Ziel.Width  := Quelle.Width;
  Ziel.Height := Quelle.Height;
  StretchBlt(Ziel.Canvas.Handle, 0, 0, Ziel.Width, Ziel.Height, Quelle.Canvas.Handle,
    Quelle.Width, 0, Quelle.Width, Quelle.Height, srccopy);
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  
temp: TBitMap;
begin
  
temp := TBitMap.Create;
  try
    
temp.Assign(Image1.Picture.BitMap);
    flip_vertikal(Temp, Image1.Picture.Bitmap);
  finally
    
Temp.Free;
  end;
end;


 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners