/// <summary>
/// 对一个WebBrowser进行截图
/// </summary>
/// <param name="targetBrowser">我这里用的是Forms的WebBrowser，如果是wpf的，请自己改成Controls并调整参数</param>
/// <returns></returns>
public static ImageSource BrowserSnapShot(Window targetBrowser)
{
// 获取宽高
int screenWidth = (int)targetBrowser.ActualWidth;
int screenHeight = (int)targetBrowser.ActualHeight;
IntPtr myIntptr = new WindowInteropHelper(targetBrowser).Handle;
int hwndInt = myIntptr.ToInt32();
IntPtr hwnd = myIntptr;
//创建图形
System.Drawing.Bitmap bm = new System.Drawing.Bitmap(screenWidth, screenHeight, System.Drawing.Imaging.PixelFormat.Format16bppRgb555);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bm);
IntPtr hdc = g.GetHdc();
//调用api 把hwnd的内容用图形绘制到hdc 如果你有代码洁癖 可以不使用api 使用g.CopyFromScreen，请自行研究
bool result = PrintWindow(hwnd, hdc, 0);
g.ReleaseHdc(hdc);
g.Flush();
if (result == true) //成功 转换并返回ImageSource
{
ImageSourceConverter imageSourceConverter = new ImageSourceConverter();
MemoryStream stream = new MemoryStream();
bm.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
return((ImageSource)imageSourceConverter.ConvertFrom(stream));
}
return(null);
}
uint uFlags); // window positioning flags
/// <summary>
/// Make a window topmost, without making it permanently topmost
/// </summary>
/// <param name="window"></param>
public static void ShowWindowTopMost(System.Windows.Window window)
{
IntPtr windowHandle = new WindowInteropHelper(window).Handle;
SetWindowPos(windowHandle.ToInt32(),
HWND_TOPMOST,
Convert.ToInt32(window.Left),
Convert.ToInt32(window.Top),
Convert.ToInt32(window.Width),
Convert.ToInt32(window.Height),
SWP_SHOWWINDOW);
SetWindowPos(windowHandle.ToInt32(),
HWND_NONTOPMOST,
Convert.ToInt32(window.Left),
Convert.ToInt32(window.Top),
Convert.ToInt32(window.Width),
Convert.ToInt32(window.Height),
SWP_SHOWWINDOW);
}
private void WindowLoaded(object sender, RoutedEventArgs e)
{
var handle = new WindowInteropHelper(this).Handle;
modifier = 0x0008; //Win key
keys = (int)Keys.Scroll;
id = handle.ToInt32() ^ modifier ^ keys;
var a = Hook.RegisterHotKey(handle, id, modifier, keys);
HwndSource source = HwndSource.FromHwnd(handle);
source.AddHook(new HwndSourceHook(WndProc));
}
