private static void TakeScreenshot(Form form,
string destinationFile,
string destinationFileInverted)
{
if (File.Exists(destinationFile))
{
File.Delete(destinationFile);
}
if (File.Exists(destinationFileInverted))
{
File.Delete(destinationFileInverted);
}
using (var destinationBitmap = new Bitmap(form.Width, form.Height))
{
form.DrawToBitmap(destinationBitmap, new Rectangle(0, 0, destinationBitmap.Width, destinationBitmap.Height));
destinationBitmap.Save(destinationFile);
using (var grayScaleImage = GrayScaleImageHelper.ToGrayScale(destinationBitmap))
{
var bounds = new Rectangle(0, 0, grayScaleImage.Width, grayScaleImage.Height);
BitmapData bitmapData = grayScaleImage.LockBits(bounds, ImageLockMode.ReadOnly, grayScaleImage.PixelFormat);
var grayScaleHW = new byte[grayScaleImage.Height * bitmapData.Stride];
Marshal.Copy(bitmapData.Scan0, grayScaleHW, 0, grayScaleImage.Height * bitmapData.Stride);
var stride = bitmapData.Stride;
grayScaleImage.UnlockBits(bitmapData);
GrayScaleImageHelper.Invert(grayScaleHW, stride, grayScaleImage.Width, grayScaleImage.Height);
var data = GrayScaleImageHelper.FromData2(grayScaleImage.Width, grayScaleImage.Height, stride, grayScaleHW);
File.WriteAllBytes(destinationFileInverted, data);
}
}
}