各位高手:请问如何用vc调用vb编的dll
接口函数:short _DiskInform::GetDiskInfo(LPCTSTR vNewValue)
{
short result;
static BYTE parms[] =
VTS_BSTR;
InvokeHelper(0x60030000, DISPATCH_METHOD, VT_I2, (void*)&result, parms,
vNewValue);
return result;
}
我用了LPCTSTR str;
short n;
n = GetDiskInfo(str);
n返回总是空