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Button1Click procedure creates variable of TJPEGImage type and loads a picture stored in a file.
Button2Click procedure creates variable of TBitmap type and sets jpeg object to this variable.
s
uses JPEG;
...
var
JPEGImage: TJPEGImage;
...
procedure TForm1.Button1Click(Sender: TObject);
begin
JPEGImage:=TJPEGImage.Create;
if OpenDialog1.Execute then
begin
JPEGImage.LoadFromFile(OpenDialog1.FileName);
Image1.Canvas.Draw(0,0,JPEGImage);
end;
end;
procedure TForm1.Button2Click(Sender: TObject);
var
Bitmap: TBitmap;
begin
try
Bitmap:=TBitmap.Create;
with Bitmap do
begin
PixelFormat:=pf24bit;
Height:=JPEGImage.Height;
Width:=JPEGImage.Width;
Canvas.Draw(0,0, JPEGImage);
end;
if SaveDialog1.Execute then
Bitmap.SaveToFile(SaveDialog1.FileName);
Label1.Caption:='Convertation finised';
finally
Bitmap.Free;
JPEGImage.Free;
end;
end;
- Related topics
-
Convert bmp-file to jpeg-file
Convert Icon to bmp-file
- For more
-
Delphi Help
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