/// <summary>
/// Takes screenshot of the window (supports multiple monitors) and then lets user to select the wanted area and returns that area.
/// Also returns the rectangle of the selected part inside of the window.
/// </summary>
public static Image Snip(IntPtr hWnd, out Rectangle rect, PixelFormat format = PixelFormat.Format24bppRgb)
{
NativeWin32.SetForegroundWindow(hWnd);
Rect r;
if (!NativeWin32.GetWindowRect(hWnd, out r))
{
rect = Rectangle.Empty;
return(null);
}
rect = new Rectangle(Convert.ToInt32(r.X), Convert.ToInt32(r.Y), Convert.ToInt32(r.Width), Convert.ToInt32(r.Height));
var bmp = ScreenShot.Create(hWnd);
Graph = Graphics.FromImage(bmp);
Graph.SmoothingMode = SmoothingMode.None;
using (var snipper = new SnippingTool(bmp)
{
SpecificWindowMode = true
}) {
snipper.Location = new Point(rect.Left, rect.Top);
NativeWin32.SetForegroundWindow(snipper.Handle);
if (snipper.ShowDialog() == DialogResult.OK)
{
rect = snipper.rcSelect;
return(snipper.Image);
}
}
rect = Rectangle.Empty;
return(null);
}
/// <summary>
/// Create a complete screenshot of a window by using a handle.
/// </summary>
/// <param name="windowHandle">
/// Handle of the window.
/// </param>
/// <returns>
/// A <see cref="Bitmap"/> of the window.
/// </returns>
public static Bitmap Create(IntPtr windowHandle)
{
Rect window;
NativeWin32.GetWindowRect(windowHandle, out window);
int winWidth = Convert.ToInt32(window.Right - window.Left);
int winHeight = Convert.ToInt32(window.Bottom - window.Top);
Rectangle windowRect = new Rectangle((int)window.Left, (int)window.Top, winWidth, winHeight);
Bitmap bmpScreen = ScreenShot.Create(windowRect);
return(bmpScreen);
}
private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && (wParam == (IntPtr)WM_KEYDOWN || wParam == (IntPtr)WM_SYSKEYDOWN))
{
Keys number = (Keys)Marshal.ReadInt32(lParam);
string cucc = nCode.ToString() + " | " +
wParam.ToString() + " | " +
lParam.ToString() + " | " +
number.ToString() + " | " +
Control.ModifierKeys.ToString();
if (number == Keys.PrintScreen)
{
if ((wParam == (IntPtr)256 && number == Keys.PrintScreen && Keys.None == Control.ModifierKeys))
{
System.Threading.Thread fullps = new System.Threading.Thread(() => new ScreenMode.FullScreen());
fullps.SetApartmentState(System.Threading.ApartmentState.STA);
fullps.Start();
}
else if ((wParam == (IntPtr)260 && Keys.Alt == Control.ModifierKeys && number == Keys.PrintScreen))
{
IntPtr hWnd = NativeWin32.GetForegroundWindow();
Rectangle rect;
NativeWin32.GetWindowRect(hWnd, out rect);
new Thread(() => new ScreenMode.ActiveWindow(rect)).Start();
}
else if ((wParam == (IntPtr)256 && Keys.Control == Control.ModifierKeys && number == Keys.PrintScreen))
{
DesignateArea secondForm = new DesignateArea();
secondForm.Show();
}
}
}
return(NativeWin32.CallNextHookEx(_hookID, nCode, wParam, lParam));
}