protected void CallFunction(params object[] parameters)
{
StackTrace st = new StackTrace();
StackFrame frame = st.GetFrame(1);
var method = frame.GetMethod();
var attribute = method.GetCustomAttributes(typeof(ExternFunctionAttribute), false);
ExternFunctionAttribute externAtt = null;
if (attribute.Length > 0)
{
externAtt = (ExternFunctionAttribute)attribute[0];
}
XmlDocument doc = PrepareDocument(externAtt, parameters);
string s = GetXmlDocumentAsString(doc);
string pipe = "extern_" + process.Id.ToString();
NamedPipeClientStream client = new NamedPipeClientStream(".", pipe, PipeDirection.InOut, PipeOptions.Asynchronous);
client.Connect();
client.Write(Encoding.ASCII.GetBytes(s), 0, s.Length);
client.Close();
}
private XmlDocument PrepareDocument(ExternFunctionAttribute att, params object[] parameters)
{
XmlDocument doc = new XmlDocument();
XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "UTF-8", "");
doc.AppendChild(dec);
XmlElement exter = doc.CreateElement("Extern");
XmlElement element = doc.CreateElement("Address");
if (att.UseStaticAddress)
{
element.InnerText = att.Address.ToString();
}
else
{
element.InnerText = GetAddress(att.Module, att.Offset).ToString();
}
exter.AppendChild(element);
element = doc.CreateElement("CallingConvention");
element.InnerText = ((int)att.CallingConvention).ToString();
exter.AppendChild(element);
element = doc.CreateElement("Parameters");
XmlAttribute count = doc.CreateAttribute("Count");
count.Value = parameters.Length.ToString();
element.Attributes.Append(count);
XmlElement param = null;
for (int i = parameters.Length - 1; i >= 0; i--)
{
param = doc.CreateElement("Parameter");
XmlAttribute attr = doc.CreateAttribute("Offset");
attr.Value = i.ToString();
param.Attributes.Append(attr);
attr = doc.CreateAttribute("Type");
attr.Value = MapToUnmanagedType(parameters[i].GetType());
param.Attributes.Append(attr);
//if (attr.Value == "struct")
//{
// param.InnerText = Convert.ToBase64String(StructToByteArray(parameters[i]));
//}
//else if (attr.Value == "pointer")
//{
// attr.Value = "struct";
// Pointer p = (Pointer)parameters[i];
// param.InnerText = Convert.ToBase64String(StructToByteArray(p.Value));
//}
//else
//{
param.InnerText = parameters[i].ToString();
// }
element.AppendChild(param);
}
exter.AppendChild(element);
doc.AppendChild(exter);
return(doc);
}
