public static Bitmap CaptureForegroundWindow()
{
//This function currently uses hardcoded values and is unused, but might be useful
Rectangle bounds;
var foregroundWindowsHandle = DLLImportStuff.GetForegroundWindow();
DLLImportStuff.GetClientRect(foregroundWindowsHandle, out bounds);
//bounds = new Rectangle(rect.Left, rect.Top, rect.Right - rect.Left, rect.Bottom - rect.Top);
if (bounds.Width <= 0)
{
return(new Bitmap(1, 1));
}
var result = new Bitmap(300, 100);
using (var g = Graphics.FromImage(result))
{
g.CopyFromScreen(new Point(bounds.Width / 2, bounds.Height / 2), new Point(bounds.X, bounds.Y), new Size(300, 100));
}
return(result);
}
public static Bitmap PrintWindow(IntPtr hwnd, ref ImageCaptureInfo info, bool full = false, bool useCrop = false, float scalingValueFloat = 1.0f)
{
try
{
var watch = System.Diagnostics.Stopwatch.StartNew();
Rectangle rc;
DLLImportStuff.GetClientRect(hwnd, out rc);
Bitmap ret = new Bitmap(1, 1);
if (rc.Width < 0)
{
return(ret);
}
IntPtr hdcwnd = DLLImportStuff.GetDC(hwnd);
IntPtr hdc = DLLImportStuff.CreateCompatibleDC(hdcwnd);
rc.Width = (int)(rc.Width * scalingValueFloat);
rc.Height = (int)(rc.Height * scalingValueFloat);
if (useCrop)
{
//Change size according to selected crop
rc.Width = (int)(info.crop_coordinate_right - info.crop_coordinate_left);
rc.Height = (int)(info.crop_coordinate_bottom - info.crop_coordinate_top);
}
//Compute crop coordinates and width/ height based on resolution
ImageCapture.SizeAdjustedCropAndOffset(rc.Width, rc.Height, ref info);
float cropOffsetX = info.actual_offset_x;
float cropOffsetY = info.actual_offset_y;
if (full)
{
info.actual_offset_x = 0;
info.actual_offset_y = 0;
info.actual_crop_size_x = 2 * info.center_of_frame_x;
info.actual_crop_size_y = 2 * info.center_of_frame_y;
}
if (useCrop)
{
//Adjust for crop offset
info.center_of_frame_x += info.crop_coordinate_left;
info.center_of_frame_y += info.crop_coordinate_top;
}
IntPtr hbmp = DLLImportStuff.CreateCompatibleBitmap(hdcwnd, (int)info.actual_crop_size_x, (int)info.actual_crop_size_y);
DLLImportStuff.SelectObject(hdc, hbmp);
DLLImportStuff.BitBlt(hdc, 0, 0, (int)info.actual_crop_size_x, (int)info.actual_crop_size_y, hdcwnd, (int)(info.center_of_frame_x + info.actual_offset_x - info.actual_crop_size_x / 2),
(int)(info.center_of_frame_y + info.actual_offset_y - info.actual_crop_size_y / 2), DLLImportStuff.TernaryRasterOperations.SRCCOPY);
info.actual_offset_x = cropOffsetX;
info.actual_offset_y = cropOffsetY;
ret = (Bitmap)Image.FromHbitmap(hbmp).Clone();
DLLImportStuff.DeleteObject(hbmp);
DLLImportStuff.ReleaseDC(hwnd, hdcwnd);
DLLImportStuff.DeleteDC(hdc);
if (ret.Size.Width != info.featureSizeX && ret.Size.Height != info.featureSizeY)
{
ResizeNearestNeighbor filter = new ResizeNearestNeighbor(info.featureSizeX, info.featureSizeY);
ret = filter.Apply(ret);
}
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
return(ret);
}
catch (System.Runtime.InteropServices.ExternalException ex)
{
return(new Bitmap(10, 10));
}
}