private Image CaptureWindow(CaptureMode mode)
{
Image img = null;
IntPtr handle = IntPtr.Zero;
Rectangle monitor = Rectangle.Empty;
switch (mode)
{
case CaptureMode.FullScreen:
handle = WindowNative.GetDesktopWindow();
if (CaptureSetting.FullScreenMode == FullScreenMode.MainMonitor)
{
monitor = Screen.PrimaryScreen.Bounds;
}
else if (CaptureSetting.FullScreenMode == FullScreenMode.ActiveMonitor)
{
monitor = Screen.GetBounds(Cursor.Position);
}
else if (CaptureSetting.FullScreenMode == FullScreenMode.AllMonitor)
{
monitor = SystemInformation.VirtualScreen;
}
img = CaptureWindow(handle, monitor.X, monitor.Y, monitor.Width, monitor.Height);
break;
case CaptureMode.ActiveProcess:
handle = WindowNative.GetForegroundWindow();
img = CaptureWindow(handle, 0, 0, 0, 0);
break;
case CaptureMode.Region:
handle = WindowNative.GetDesktopWindow();
monitor = SystemInformation.VirtualScreen;
using (var tmp = CaptureWindow(handle, monitor.X, monitor.Y, monitor.Width, monitor.Height))
using (var dialog = new CaptureBackgroundDialog(tmp))
{
dialog.TopMost = true;
dialog.BringToFront();
if (dialog.ShowDialog() != DialogResult.OK)
{
return(null);
}
img = dialog.Image;
}
break;
default: return(null);
}
return(img);
}