does ado/myodbc not support blob data insert in vc6?

hi,all! ENV: mysql server 5.1, myodbc 5.1.5, vc 6.0, I use ado to operate mysql. I found it can't work to insert a blob data to mysql server. And it is no problem to get the blob data from mysql server. what's the matter? I used the source code of MSDN about AppendChunk and

does ado/myodbc not support blob data insert in vc6?

hi,all! ENV: mysql server 5.1, myodbc 5.1.5, vc 6.0, I use ado to operate mysql. I found it can't work to insert a blob data to mysql server. And it is no problem to get the blob data from mysql server. what's the matter? I used the source code of MSDN about AppendChunk and