PNGArt class on Windows

Hello,

I am using the PNGArt class to load a png file to display in my plugin and this works fine on Mac OS X.

But on Windows nothing is displayed, which I think is strange.

I use the following code:

  PNGArt *pa = new PNGArt();
  bool isAValidSysFile = false;
  IDFile thumbFile = FileUtils::FileURLToSysFile(PMString(thumbimgfile.c_str()), &isAValidSysFile);
  if (isAValidSysFile)
  {
  pa->SetFile(thumbFile);
  PMMatrix identityMatrix;
  pa->Draw(gPort, identityMatrix, 0);
  }
  delete pa;

I am using this in a class that inherits from CControlView.

I also tried using the SHGetFileInfo method, but that does not work either:

// WERKT NIET
//SHFILEINFO info;
//::SHGetFileInfo(L”thumb.png"/*thumbimgfileStr.c_str()*/, 0, &info, sizeof(info), SHGFI_ICON | SHGFI_SMALLICON | SHGFI_SHELLICONSIZE | SHGFI_TYPENAME | SHGFI_DISPLAYNAME);
//RsrcID iconID = (RsrcID)info.hIcon;
//
//
//
//PNGIcon thumbnailPNG;
//thumbnailPNG.LoadIcon(kJCPluginID, iconID);
//thumbnailPNG.DrawIcon(gPort);

But the following works, but is not what I need:

// dit werkt wel.. maar is niet zoals het moet.
//PNGIcon thumbnailPNG;
//thumbnailPNG.LoadIcon(pluginid, someresourceid);
//thumbnailPNG.DrawIcon(gPort);

What do I need to do to be able to display the icon in the Windows version?