public static void CaptureActiveWindow(string path, imageFormats format = imageFormats.png, byte qualityJpeg = 90)
{
Rect rect = new Rect();
GetWindowRect(GetForegroundWindow(), ref rect);
Rectangle bounds = new Rectangle(rect.Left, rect.Top, rect.Right - rect.Left, rect.Bottom - rect.Top);
Bitmap bmp = new Bitmap(bounds.Width, bounds.Height);
using (Graphics graphics = Graphics.FromImage(bmp))
{
graphics.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size);
}
saveToFile(ref bmp, path, format, qualityJpeg);
}
public static void CaptureDesktop(string path, imageFormats format = imageFormats.png, byte qualityJpeg = 100)
{
int screenLeft = int.MaxValue;
int screenTop = int.MaxValue;
int screenRight = int.MinValue;
int screenBottom = int.MinValue;
int deviceIndex = 0;
while (true)
{
NativeUtilities.DisplayDevice deviceData = new NativeUtilities.DisplayDevice {
cb = Marshal.SizeOf(typeof(NativeUtilities.DisplayDevice))
};
if (NativeUtilities.EnumDisplayDevices(null, deviceIndex, ref deviceData, 0) != 0)
{
NativeUtilities.DEVMODE devMode = new NativeUtilities.DEVMODE();
if (NativeUtilities.EnumDisplaySettings(deviceData.DeviceName, NativeUtilities.ENUM_CURRENT_SETTINGS, ref devMode))
{
screenLeft = Math.Min(screenLeft, devMode.dmPositionX);
screenTop = Math.Min(screenTop, devMode.dmPositionY);
screenRight = Math.Max(screenRight, devMode.dmPositionX + devMode.dmPelsWidth);
screenBottom = Math.Max(screenBottom, devMode.dmPositionY + devMode.dmPelsHeight);
}
deviceIndex++;
}
else
{
break;
}
}
Bitmap bmp = new Bitmap(screenRight - screenLeft, screenBottom - screenTop);
using (Graphics g = Graphics.FromImage(bmp))
g.CopyFromScreen(screenLeft, screenTop, 0, 0, bmp.Size);
saveToFile(ref bmp, path, format, qualityJpeg);
}
private static void saveToFile(ref Bitmap bmp, string path, imageFormats format, byte qualityJpeg = 90)
{
switch (format)
{
case imageFormats.bmp:
bmp.Save(path, ImageFormat.Bmp);
break;
case imageFormats.png:
bmp.Save(path, ImageFormat.Png);
break;
case imageFormats.gif:
bmp.Save(path, ImageFormat.Gif);
break;
case imageFormats.jpg:
EncoderParameters encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, (Int64)qualityJpeg);
bmp.Save(path, GetEncoder(ImageFormat.Jpeg), encoderParameters);
break;
}
}