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Button1Click procedure creates variable of TBitmap type and loads a picture stored in a file.
Button2Click procedure creates variable of TJPEGImage type and assignes bitmap object to this variable.
uses JPEG;
...
var
Bitmap: TBitmap;
...
procedure TForm1.Button1Click(Sender: TObject);
begin
if OpenDialog1.Execute then
begin
Bitmap:=TBitmap.Create;
Bitmap.LoadFromFile(OpenDialog1.FileName);
Image1.Picture.LoadFromFile(OpenDialog1.FileName);
end;
end;
procedure TForm1.Button2Click(Sender: TObject);
var
JPEGImage: TJPEGImage;
begin
try
JPEGImage:=TJPEGImage.Create;
JPEGImage.CompressionQuality:=80;
JPEGImage.Assign(Bitmap);
if SaveDialog1.Execute then
JPEGImage.SaveToFile(SaveDialog1.FileName);
Label1.Caption:='Convertation finished';
finally
Bitmap.Free;
JPEGImage.Free;
end;
end;
- Related topics
-
Convert Jpeg-file to bmp-file
Convert Icon to bmp-file
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Delphi Help
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