private void htmlScreenCapture_HtmlScreenCaptureAvailable_ChangeTest(object sender, HtmlScreenCaptureAvailableEventArgs e)
{
// get the bitmap
Bitmap bitmap = e.Bitmap;
int totalPixels = 0;
if (testBitmap == null)
{
testBitmap = (Bitmap)e.Bitmap.Clone();
}
int countPixels = 0;
//only doing some pixels to speed this up!
for (int x = 0; x < bitmap.Width; x += 8)
{
for (int y = 0; y < bitmap.Height; y += 8)
{
totalPixels++;
if (bitmap.GetPixel(x, y) == testBitmap.GetPixel(x, y))
{
countPixels++;
}
}
}
// if more than 80% of all pixels the same as first look then
// this is not a thumbnail
double pctBackground = Convert.ToDouble(countPixels) / Convert.ToDouble(totalPixels);
//Trace.WriteLine("difference in snapshots: " + pctBackground.ToString());
e.CaptureCompleted = pctBackground < .80F || TimedOut;
}
void htmlScreenCapture_HtmlScreenCaptureAvailable_RectangleTest(object sender, HtmlScreenCaptureAvailableEventArgs e)
{
Bitmap bitmap = e.Bitmap;
int xRect = (int)Math.Round(bitmap.Width * rectTest.X - (rectTest.Width / 2));
int yRect = (int)Math.Round(bitmap.Height * rectTest.Y - (rectTest.Height / 2));
int nonMatchingPixelCount = 0;
for (int x = xRect; x < xRect + rectTest.Width; x++)
{
for (int y = yRect; y < yRect + rectTest.Height; y++)
{
Color color = bitmap.GetPixel(x, y);
if (color.A != rectTest.Color.A ||
color.R != rectTest.Color.R ||
color.G != rectTest.Color.G ||
color.B != rectTest.Color.B)
{
nonMatchingPixelCount++;
}
}
}
e.CaptureCompleted = nonMatchingPixelCount == 0 || TimedOut;
}
private void htmlScreenCapture_HtmlScreenCaptureAvailable_ColorTest(object sender, HtmlScreenCaptureAvailableEventArgs e)
{
const int PLAYER_CONTROL_OFFSET = 30;
// get the bitmap
Bitmap bitmap = e.Bitmap;
int pixelCount = 0;
for (int x = 0; x < bitmap.Width; x++)
{
for (int y = 0; y < bitmap.Height - PLAYER_CONTROL_OFFSET; y++)
{
if (bitmap.GetPixel(x, y) == testColor)
{
pixelCount++;
}
}
}
int totalPixels = bitmap.Width * (bitmap.Height - PLAYER_CONTROL_OFFSET);
double pctBackground = Convert.ToDouble(pixelCount) / Convert.ToDouble(totalPixels);
//Trace.WriteLine("how much test Color: " + pctBackground.ToString());
e.CaptureCompleted = pctBackground < testPct || TimedOut;
}
