Resource problem rendering to PDF

rbuser

Hello,

I have some resource problems, when I render reports to PDF:

The PDF generation is an encapsulated method. When I run this method in a VCL Form Application the GDIHandles will be released correctly, but when I run the same method in an ISAPI dll, the GDIHandles will *not* be released and after some calls the DLL crashes with "out of resource" error messages. The allocation of the GDIHandles starts with calling AReport.PrintToDevices

When I try to export a simple, but long report to PDF (in VCL Form Application) I'll get an "out of resources" error as well. It seems that the export to PDF doesn't release the GDI objects after rendering each single page.

I use DelphiXE2 and RB14.06

Regards,
Michael

rbuser

Hello,

I researched the problem and found a really bad bug! In the method TppPDFRendererCustomText.RenderToPDF a local bitmap is created and never relesed again ... which means, that for every single text element a bitmap is leaved behing!
I patched the method and added a lBitmap.Free and all my resource problems are gone. Even my test report with 15000 simulated records will not run out of resources again.

BTW: Why do you create a bitmap in nearly every procedure handling text metrics? Wouldn't it be more efficient that each renderer instance holds a bitmap until the renderer is released?

Regards,
Michael

Am 30.08.2012 09:53, schrieb Michael Schwarzl:

nardmoseley

There is a patch available for RB 14.06 that fixes the memory leak in
TppPDFRendereCustomText. Registered customers can email support@ and request
the patch.


-
Nard Moseley
Digital Metaphors
www.digital-metaphors.com