Search results for 'Bitmap'. 1 post(s) found.
Delphi supports Jpeg unit as well as Bitmap unit for image processing. Following example convert and save Bitmap into Jpeg format. The source format must be TBitmap instance.
unit Jpeg;
procedure BitmapToJpeg(FileName: string; Img:TGraphic);
var
m_Jpeg: TJpegImage;
m_Bitmap: TBitmap;
begin
try
m_Jpeg:= TJpegImage.Create;
m_Bitmap := TBitmap.Create;
m_Bitmap.Width := Img.Width;
m_Bitmap.Height := Img.Height;
m_Bitmap.Canvas.Draw( 0, 0, Img);
// m_Bitmap.Canvas.StretchDraw( 0, 0, , ...,Img);
m_Jpeg.Assign( m_Bitmap);
m_Jpeg.SaveToFile( FileName);
finally
m_Jpeg.Free;
end;
end;
procedure BitmapToJpeg(FileName: string; Img:TGraphic);
var
m_Jpeg: TJpegImage;
m_Bitmap: TBitmap;
begin
try
m_Jpeg:= TJpegImage.Create;
m_Bitmap := TBitmap.Create;
m_Bitmap.Width := Img.Width;
m_Bitmap.Height := Img.Height;
m_Bitmap.Canvas.Draw( 0, 0, Img);
// m_Bitmap.Canvas.StretchDraw( 0, 0, , ...,Img);
m_Jpeg.Assign( m_Bitmap);
m_Jpeg.SaveToFile( FileName);
finally
m_Jpeg.Free;
end;
end;
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