示例#1
0
        public static Bitmap CaptureWindowDirect(IntPtr wnd, WindowSettings settings, out SIZE size, out Win32Stuff.WINDOWINFO info)
        {
            IntPtr hBitmap;
            IntPtr hDC    = Win32Stuff.GetDC(wnd);
            IntPtr hMemDC = GDIStuff.CreateCompatibleDC(hDC);


            info        = new Win32Stuff.WINDOWINFO();
            info.cbSize = (uint)Marshal.SizeOf(info);
            Win32Stuff.GetWindowInfo(wnd, ref info);

            size.cx = Math.Max(1, info.rcClient.Width + settings.offsetRight - settings.offsetLeft);  // Win32Stuff.GetSystemMetrics(Win32Stuff.SM_CXSCREEN);
            size.cy = Math.Max(1, info.rcClient.Height + settings.offsetBottom - settings.offsetTop); // Win32Stuff.GetSystemMetrics(Win32Stuff.SM_CYSCREEN

            hBitmap = GDIStuff.CreateCompatibleBitmap(hDC, size.cx, size.cy);

            if (hBitmap != IntPtr.Zero)
            {
                IntPtr hOld = (IntPtr)GDIStuff.SelectObject(hMemDC, hBitmap);

                GDIStuff.BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC, settings.offsetLeft, settings.offsetTop, GDIStuff.SRCCOPY);

                GDIStuff.SelectObject(hMemDC, hOld);
                GDIStuff.DeleteDC(hMemDC);
                Win32Stuff.ReleaseDC(Win32Stuff.GetDesktopWindow(), hDC);
                Bitmap bmp = System.Drawing.Image.FromHbitmap(hBitmap);
                GDIStuff.DeleteObject(hBitmap);
                GC.Collect();
                return(bmp);
            }
            return(null);
        }
示例#2
0
        public static Bitmap CaptureDesktop(int x = 0, int y = 0, int wid = -1, int hei = -1)
        {
            SIZE   size;
            IntPtr hBitmap;
            IntPtr hDC    = Win32Stuff.GetDC(Win32Stuff.GetDesktopWindow());
            IntPtr hMemDC = GDIStuff.CreateCompatibleDC(hDC);

            size.cx = wid == -1 ? Win32Stuff.GetSystemMetrics(Win32Stuff.SM_CXSCREEN) : wid;

            size.cy = hei == -1 ? Win32Stuff.GetSystemMetrics(Win32Stuff.SM_CYSCREEN) : hei;

            hBitmap = GDIStuff.CreateCompatibleBitmap(hDC, size.cx, size.cy);

            if (hBitmap != IntPtr.Zero)
            {
                IntPtr hOld = (IntPtr)GDIStuff.SelectObject(hMemDC, hBitmap);

                GDIStuff.BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC, x, y, GDIStuff.SRCCOPY);

                GDIStuff.SelectObject(hMemDC, hOld);
                GDIStuff.DeleteDC(hMemDC);
                Win32Stuff.ReleaseDC(Win32Stuff.GetDesktopWindow(), hDC);
                Bitmap bmp = System.Drawing.Image.FromHbitmap(hBitmap);
                GDIStuff.DeleteObject(hBitmap);
                GC.Collect();
                return(bmp);
            }
            return(null);
        }