/// <summary>
/// 设置点击命中，不会穿透到后面的窗口
/// </summary>
public void SetTransparentNotHitThrough()
{
if (_dwmEnabled)
{
Win32.User32.SetWindowLongPtr(_hwnd, Win32.GetWindowLongFields.GWL_EXSTYLE,
(IntPtr)(int)((long)Win32.User32.GetWindowLongPtr(_hwnd, Win32.GetWindowLongFields.GWL_EXSTYLE) & ~(long)Win32.ExtendedWindowStyles.WS_EX_TRANSPARENT));
}
else
{
Background = BrushCreator.GetOrCreate("#0100000");
}
}
/// <summary>
/// 创建高性能透明桌面窗口
/// </summary>
public PerformanceDesktopTransparentWindow()
{
WindowStyle = WindowStyle.None;
ResizeMode = ResizeMode.NoResize;
WindowChrome.SetWindowChrome(this,
new WindowChrome {
GlassFrameThickness = WindowChrome.GlassFrameCompleteThickness, CaptionHeight = 0
});
var visualTree = new FrameworkElementFactory(typeof(Border));
visualTree.SetValue(Border.BackgroundProperty, new TemplateBindingExtension(Window.BackgroundProperty));
var childVisualTree = new FrameworkElementFactory(typeof(ContentPresenter));
childVisualTree.SetValue(UIElement.ClipToBoundsProperty, true);
visualTree.AppendChild(childVisualTree);
Template = new ControlTemplate
{
TargetType = typeof(Window),
VisualTree = visualTree,
};
_dwmEnabled = Win32.Dwmapi.DwmIsCompositionEnabled();
if (_dwmEnabled)
{
_hwnd = new WindowInteropHelper(this).EnsureHandle();
Loaded += PerformanceDesktopTransparentWindow_Loaded;
Background = Brushes.Transparent;
}
else
{
AllowsTransparency = true;
Background = BrushCreator.GetOrCreate("#0100000");
_hwnd = new WindowInteropHelper(this).EnsureHandle();
}
}