C#

void myLabel_Click(object sender, EventArgs E)
{
  Point p = myLabel.PointToClient(MousePosition);
  // ...
}

<br />
#include "stdafx.h"<br />
<br />
//#include <stdio.h><br />
#include <windows.h><br />
#include <mmsystem.h><br />
<br />
using namespace System;<br />
using namespace System::IO;<br />
<br />
// This is the entry point for this application<br />
int _tmain(void)<br />
{<br />
_int64 ctr1 = 0, ctr2 = 0, freq = 0;<br />
int acc = 0, i = 0;<br />
StreamWriter* storage;<br />
<br />
//Start timing the code<br />
if(QueryPerformanceCounter((LARGE_INTEGER *)&ctr1) != 0)<br />
{<br />
storage = new StreamWriter("C:\\TestTimer.txt", true);	//Open a file stream for writing, append=true<br />
//Code segment is being timed<br />
for(i=0; i<100; i++) acc++;<br />
//Finish timing the code<br />
QueryPerformanceCounter((LARGE_INTEGER *)&ctr2);<br />
<br />
storage->WriteLine("Start Value {0}", ctr1.ToString()); //No confusion with type casts<br />
Console::WriteLine("Start Value: {0}",ctr1.ToString());<br />
<br />
storage->WriteLine("End Value {0}", ctr2.ToString());<br />
Console::WriteLine("End Value: {0}",ctr2.ToString());<br />
<br />
QueryPerformanceFrequency((LARGE_INTEGER *)&freq);<br />
<br />
storage->WriteLine("Frequency {0}", freq.ToString());<br />
Console::WriteLine(S"QueryPerformanceCounter minimum resolution: 1/{0} seconds.",freq.ToString());<br />
<br />
storage->WriteLine("Time {0}", ((ctr2-ctr1) * 1.0 / freq).ToString());<br />
Console::WriteLine("100 Increment time: {0} seconds.",((ctr2-ctr1) * 1.0 / freq).ToString());<br />
<br />
storage->Close();<br />
} <br />
return 0;<br />
} <br />