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Low resolution timer class for Visual C++ and GNU C++ under MingW

, 9 Jan 2006
LRTimer - universal low resolution timer class with its own thread.
#include <stdlib.h>
#include "lrtimer.h"

// define callback function
void callback() {
  static DWORD cnt = 0;
  char c;
  switch (cnt % 4) {
    case 0: c = '|'; break;
    case 1: c = '/'; break;
    case 2: c = '-'; break;
    case 3: c = '\\';

int main(int argc, char *argv[]) {

  LRTimer lrt;
  lrt.setCallbackFunction(&callback);  // set the callback function by reference
  lrt.setInterval(50);                 // set delay interval in miliseconds
  lrt.start();                         // start the timer
  getchar();                           // let it run for a while - press Enter
  lrt.stop();                          // stop the timer
  getchar();                           // wait to show it's stopped - Enter
  lrt.start(200);                      // start with different delay
  return 0;

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