Managed C++/CLI

	<br />
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {<br />
				<br />
    ThreadStart^ t1 = gcnew ThreadStart(this, &FYProjV4::Form1::detectThreadStart);<br />
    Thread^ recogThread = gcnew Thread(t1);<br />
<br />
    recogThread->IsBackground = true;<br />
    recogThread->Start();<br />
			 <br />
			 <br />
}<br />
		 <br />
private: System::Void detectThreadStart() {<br />
<br />
    if(reportBox1->InvokeRequired == false)<br />
    {<br />
<br />
        FaceRecognition recogTools;<br />
        recogTools.StartRecognition(reportBox1, faceBox1);<br />
    }<br />
    else<br />
    {<br />
				 <br />
        this->BeginInvoke(gcnew DetectThreadStartDelegate(this, &FYProjV4::Form1::detectThreadStart));<br />
        this->EndInvoke(result);<br />
				 <br />
    }<br />
<br />
}

[System::Runtime::InteropServices::DllImport("user32.dll")]<br />
extern bool SetForegroundWindow(IntPtr ^hWnd);