[ATLSIP] OSSPhone development

[paolo r. <pao...@gm...>]

Hi,
I need some help on the OSSPhone client.
I'm trying to develop a client application from the source code available on
the web site.
starting from the atlsip_src-1.1.0.zip I need to introduce a button in order
to control the microphone volume and produce the Mute command

clicking the button the code that shall run is .

private: System::Void Talk_btn_Click(System::Object^  sender,
System::EventArgs^  e) {
 unsigned short a=20;
 ATLSIP->MicVolume=a;
 }

but nothing happen.
There is something wrong in the "unsigned short" data type management?
thanks in advance for the support