Insert An Image In SQL Server With Stored Prcedure In ADO With C++

Hello.
I have a SQL table with one column that has the type = image.
I have a Stored procedure that inserts an image into that table.
CREATE PROCEDURE [dbo].[Test]
@test image
AS
BEGIN
insert into Table_1(test)values(@test)
END

I am using ADO in C++ for creating a connection,command, and parameters.



Code Block
VARIANT par;
par.vt = VT_ARRAY;
par.pbVal = (BYTE*)pBuffer;

pCommand->Parameters->Append(pCommand->CreateParameter("test",DataTypeEnum::adArray, ParameterDirectionEnum::adParamInput,strlen(pBuffer),par));
pCommand->Execute(NULL,NULL,CommandTypeEnum::adCmdStoredProc);



where



Code Block
_CommandPtr pCommand;
pCommand->CommandText = (_bstr_t)procedureName;
pCommand->CommandType = CommandTypeEnum::adCmdStoredProc;

//When I append the created parameter, in comutil.h, at these lines :
namespace _com_util {
inline void CheckError(HRESULT hr) throw(...)
{
if (FAILED(hr)) {
_com_issue_error(hr);
}
}

}






I get an exception : m_hresult 0x80020008 Bad variable type.


If I try to insert a string or an number, it works. But with BYTE* it dosen't.


Can someone help me?
Thanks