protected override void ExecuteInternal(CheckPixelDifferenceParameter param, CancellationToken token)
{
var stopWatch = new Stopwatch();
while (true)
{
token.ThrowIfCancellationRequested();
stopWatch.Restart();
var color = Win32ApiHelper.GetPixelColorFromDesktop(param.Pixel.X, param.Pixel.Y);
stopWatch.Stop();
// For some reason, the GetPixel method of the WinAPI is executed every time with different duration (from 15 to 35 ms).
// The rest of code HAS TO be executed every time after the same duration, so we'll wait up to 100ms
Thread.Sleep(100 - (int)stopWatch.ElapsedMilliseconds);
if (!(color.R == param.HookedColor.R && color.G == param.HookedColor.G &&
color.B == param.HookedColor.B))
{
continue;
}
_messageBus.Publish(new PixelColorChangedMessage(this));
break;
}
}