Display Blob Data (Images) into a Report.
lazarus / 3-General

----------------------------------------------------------------------
fredycc · 2009-12-22 23:44

Hi! , Is there a way to display a blob data like images(jpg or bmp)
into a report, maybe LazReport, fortresReport?
How Can I implement this?.

----------------------------------------------------------------------
Paul Ishenin · 2009-12-23 02:53

No idea about reports but this is easy to implement if you know image
format. Blob data is usually available through the TBobField wich has
SaveToStream method. So if you have an Image: TImage you can use the
next code:
Code: Delphi  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i var 
Stream: TMemoryStream;begin  Stream := TMemoryStream.Create;  try   
 TBloblField(Ds.Fields[..]).SaveToStream(Stream);     Stream.Position
:= 0;     Image.Picture.Bitmap.LoadFromStream(Stream);  finally   
 Stream.Free;  end;end;

----------------------------------------------------------------------
fredycc · 2009-12-23 15:16

Thanks Paul, this code work fine, is similar in Delphi to display a
blob in a Form, I will check to implement similar code in a event of a
Report, maybe works I was checking a example of Fortresr with blobs
but the examples are for Delphi.

thanks again.