/// <summary>
/// 在窗口背后启用模糊效果
/// </summary>
/// <param name="window">目标窗口</param>
/// <returns>成功与否</returns>
public static bool EnableBlurBehindWindow(Window window)
{
if (!AeroGlassCompositionEnabled)
return false;
IntPtr hwnd = new WindowInteropHelper(window).Handle;
if (hwnd == IntPtr.Zero)
throw new InvalidOperationException("在启用Aero效果前窗口必须已显示");
//创建DWM_BLURBEHIND结构
DWM_BLURBEHIND bb = new DWM_BLURBEHIND();
bb.dwFlags = DWM_BLURBEHIND.DWM_BB_ENABLE | DWM_BLURBEHIND.DWM_BB_BLURREGION;
bb.fEnable = true;
bb.hRegionBlur = NativeMethods.CreateRectRgn(0, 0, (int)window.ActualWidth, (int)window.ActualHeight);
try
{
NativeMethods.DwmEnableBlurBehindWindow(hwnd, ref bb);
}
catch { }
//回收句柄
NativeMethods.DeleteObject(bb.hRegionBlur);
return true;
}
internal static extern void DwmEnableBlurBehindWindow(IntPtr hWnd, ref DWM_BLURBEHIND pBlurBehind);