public DjvuFileInfo GetFileInfo(int fileNumber)
{
if (fileNumber < 0 || fileNumber >= FileCount)
{
throw new ArgumentOutOfRangeException(nameof(fileNumber));
}
DjvuFileInfo info = null;
int status = 0;
int size = Marshal.SizeOf <DjvuFileInfo>();
IntPtr buffer = Marshal.AllocHGlobal(size);
status = NativeMethods.GetDjvuDocumentFileInfo(Document, fileNumber, buffer, size);
// DjvuDocumentInfo is not initialized
if (status < 2)
{
return(null);
}
if (status == 2)
{
info = DjvuFileInfo.GetDjvuFileInfo(buffer);
Marshal.FreeHGlobal(buffer);
return(info);
}
else
{
throw new ApplicationException($"Failed to get PageInfo for page number: {fileNumber}");
}
}
public static DjvuFileInfo GetDjvuFileInfo(IntPtr nativeInfo)
{
NativeFileInfo infoNative = Marshal.PtrToStructure <NativeFileInfo>(nativeInfo);
DjvuFileInfo info = new DjvuFileInfo(infoNative);
return(info);
}