[Solved] PNG Export in BCB5

to2 · Post by **to2** » Tue Mar 28, 2006 9:48 am

How can I use PNG Export in BCB?

#include <TeePNG.hpp>
TPNGExportFormat* PNG = new TPNGExportFormat;
delete PNG;

This causes

[Linker Error] Unresolved external 'Teepng::TPNGExportFormat::' referenced from ...
[Linker Error] Unresolved external '__fastcall Teepng::TPNGExportFormat::TPNGExportFormat()' referenced from ...

Post by **Pep** » Mon Apr 03, 2006 10:02 am

Hi,

you can do :

Code: Select all

#include "TeePNG.hpp"
#pragma link "TeePNG"


void __fastcall TForm1::FormCreate(TObject *Sender)
{
  TPNGExportFormat *png = new TPNGExportFormat;
  png->Panel=Chart1;
  png->PixelFormat=pf24bit;
  png->SaveToFile("d:test.png");
  png->Free();
}

to2 · Post by **to2** » Thu Apr 06, 2006 3:17 pm

Thank you, #pragma link "TeePNG" was the missing link.