[Lazarus] GetFormImage bug

[Chris Crori]

In this project, speedbuttons and bitbuttons work fine, but TDBGrid does not show.
If it is visible in your computer, maybe there is something that can go wrong with display drivers?

Press the right button to create the form and left (button1) to refresh the Preview 


From: Howard Page-Clark 
Sent: Tuesday, May 13, 2014 7:44 PM
To: lazarus at lists.lazarus.freepascal.org 
Subject: Re: [Lazarus] GetFormImage bug
On 13/05/2014 16:49, Chris Crori wrote:
> I have a thumbnail section in my main program form. In the forms, I use
> GetFormImage to make an image and send it to the mainform.
> The bug is that some components are not visible in this image.
> TDBGrid is one and a custom component derived from TBitBtn is another.
> I use the latest stable Lazarus 1.2.2 with FPC 2.6.4 on windows7, both
> 32 and 64 bit

This method
//---------
procedure TForm1.Button1Click(Sender: TObject);
var
   bmp: TBitmap;
begin
   form2.Show;
   bmp:=form2.GetFormImage;
   try
     Image1.Canvas.StretchDraw(Image1.ClientRect, bmp);
   finally
     bmp.Free;
   end;
end;
//---------
shows a DBGrid (and everything else I dropped on form2) nicely on my 
Win7 32bit setup.
Perhaps you need to share the code that drops parts of the bitmap (and 
perhaps the lfm of the imaged form as well).


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