Trying to extract data from IMemoryBlobStream

AllanMills — Mon, 26 Jun 2017 05:34:49 GMT

Can someone tell me what I'm doing wrong here:

            byte[] inBytes = File.ReadAllBytes("c:\\temp\\NotesRecording.wav");
            IMemoryBlobStream inBlob = new MemoryBlobStreamClass();
            inBlob.ImportFromMemory(ref inBytes[0], (uint)inBytes.Length);
            MessageBox.Show(inBlob.Size.ToString());
            inBlob.SaveToFile("c:\\temp\\blobTest2.wav");
            byte[] outBytes = new byte[inBytes.Length];
            inBlob.AttachToMemory(ref outBytes[0], inBlob.Size, 0);

The last part is the problem, I'm trying to extract the data in the blob stream class to a byte array. It doesn't work at all though, the array just remain empty afterwards.

Re: Trying to extract data from IMemoryBlobStream

AllanMills — Wed, 28 Jun 2017 05:34:39 GMT

I found a work around. The IMemoryBlobStreamVariant interface lets you read and write the blob data to a byte array.

topic Trying to extract data from IMemoryBlobStream in .NET Maps SDK Questions

Trying to extract data from IMemoryBlobStream

Re: Trying to extract data from IMemoryBlobStream