transfer block-memory in com ,why only a byte

[Lost User]

i use [in]short nSisze,[in,size_is(nSize)]byte* pBuffer, or [in]short nSisze,[in,size_is(nSize)]byte pBuffer[], but on the server i only get the first byte allocated in the client. why??? Thanks in advance

[Pros Chum]

This is just a guess since I'm a COM newbie, but if you created your ATL object with a "dual" interface then the above IDL won't work. You'll need to either use a VARIANT safearray to pass the data in, or create your object with a "custom" interface when you're on the ATL object wizard dialog. Hope that helps, Pros :)

[Lost User]

Oh,thanks a lot .and also thanks for your reply in the previous message I posted as cg. I've tried again . I use [in]short nSize,[in,size_is(nSize)]byte buffer[]. I found that it works both in the "dual" interface and custom interface . But I don't know now why it failed before .a little confused cg:)