/// <summary>
/// Check if a file is a valid PDF/raster...
/// </summary>
/// <param name="a_szPdf">file to check</param>
/// <param name="a_szError">text if we hit an error</param>
/// <returns>true if it's a valid PDF/raster file</returns>
public static bool ValidPdfRaster(string a_szPdf, out string a_szError)
{
int iDecoder;
byte[] abStripData;
PdfRasterReader.Reader pdfRasRd;
string szFunction = "";
// Hope for the best...
a_szError = "";
// The class throws errors, so get the mitt ready...
try
{
szFunction = "new PdfRasterReader.Reader()";
pdfRasRd = new PdfRasterReader.Reader();
szFunction = "pdfRasRd.decoder_create()";
iDecoder = pdfRasRd.decoder_create(PdfRasterReader.Reader.PdfRasterConst.PDFRASREAD_API_LEVEL, a_szPdf);
szFunction = "pdfRasRd.decoder_get_compression()";
pdfRasRd.decoder_get_compression(iDecoder);
szFunction = "pdfRasRd.decoder_get_height()";
pdfRasRd.decoder_get_height(iDecoder);
szFunction = "pdfRasRd.decoder_get_page_count()";
pdfRasRd.decoder_get_page_count(iDecoder);
szFunction = "pdfRasRd.decoder_get_pixelformat()";
pdfRasRd.decoder_get_pixelformat(iDecoder);
szFunction = "pdfRasRd.decoder_get_width()";
pdfRasRd.decoder_get_width(iDecoder);
szFunction = "pdfRasRd.decoder_get_xresolution()";
pdfRasRd.decoder_get_xresolution(iDecoder);
szFunction = "pdfRasRd.decoder_get_yresolution()";
pdfRasRd.decoder_get_yresolution(iDecoder);
szFunction = "pdfRasRd.decoder_read_strips()";
abStripData = pdfRasRd.decoder_read_strips(iDecoder);
szFunction = "pdfRasRd.decoder_destroy()";
pdfRasRd.decoder_destroy(iDecoder);
}
catch (Exception exception)
{
a_szError = szFunction + ": " + exception.Message;
return(false);
}
// We almost made it...
if (abStripData == null)
{
a_szError = "pdfRasRd.decoder_read_strips(): error reading strip data";
return(false);
}
// Success...
return(true);
}
