WPF 无边框窗体设置的方法(不使用AllowsTransparency)
如果AllowsTransparency设置为true1、整体渲染性能降低，将会占用更多CPU资源；
2、将不能窗口中嵌入其他程序窗口，例如播放器等等
不使用AllowsTransparency的无边框窗体，可改变大小：
新建一个类，全部粘贴下面：
程序代码：
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Input;
using System.Windows.Media.Effects;
using System.Windows.Media;
using System.Windows.Shell;
namespace WindowTemplate
{
internal class Template
{
public static SolidColorBrush backColor = Brushes.White; // 背景色
public static double newWidth; // 当前窗体宽度
public static double newHeight; // 当前窗体高度
public static double minWidth = 800; // 窗体最小宽度
public static double minHeight = 450; // 窗体最小高度
public static bool isMove = true; // 能否移动
public static bool isSize = true; // 能否改变大小
/// <summary>
/// 窗体样式
/// </summary>
/// <param name="windowObj">窗体</param>
/// <param name="gridObj">主要grid</param>
/// <param name="opacityProperty">透明度</param>
public static void Pattern(Window windowObj, Grid gridObj, double opacityProperty = 0.95)
{
windowObj.WindowStyle = WindowStyle.None;
windowObj.ResizeMode = ResizeMode.NoResize;
newWidth = windowObj.Width;
newHeight = windowObj.Height;
WindowChrome windowChrome = new()
{
GlassFrameThickness = new Thickness(-1),
CaptionHeight = 0
};
WindowChrome.SetWindowChrome(windowObj, windowChrome);
ControlTemplate controlTemplate = new(typeof(Window));
FrameworkElementFactory rootElementFactory = new(typeof(Border));
rootElementFactory.SetValue(Border.PaddingProperty, new Thickness(13));
rootElementFactory.SetValue(Border.BackgroundProperty, Brushes.Transparent);
rootElementFactory.SetValue(UIElement.OpacityProperty, opacityProperty);
FrameworkElementFactory innerBorderFactory = new(typeof(Border));
innerBorderFactory.SetValue(Border.BackgroundProperty, backColor);
innerBorderFactory.SetValue(Border.CornerRadiusProperty, new CornerRadius(0));
DropShadowEffect dropShadowEffect = new()
{
ShadowDepth = 1,
BlurRadius = 13,
Direction = 270,
Opacity = 0.5,
Color = Color.FromArgb(255, 33, 22, 19)
};
innerBorderFactory.SetValue(UIElement.EffectProperty, dropShadowEffect);
FrameworkElementFactory contentPresenterFactory = new(typeof(ContentPresenter));
contentPresenterFactory.SetValue(UIElement.ClipToBoundsProperty, true);
innerBorderFactory.AppendChild(contentPresenterFactory);
rootElementFactory.AppendChild(innerBorderFactory);
controlTemplate.VisualTree = rootElementFactory;
windowObj.Template = controlTemplate;
if (isSize)
{
Thumb size_Right = new()
{
Width = 3,
HorizontalAlignment = HorizontalAlignment.Right,
Cursor = Cursors.SizeWE,
Opacity = 0,
};
size_Right.DragDelta += (sender, e) =>
{
var thumb = (Thumb)sender;
var window = ((Grid)thumb.Parent).Parent as Window;
newWidth = window!.Width + e.HorizontalChange;
window.Width = newWidth < minWidth ? minWidth : newWidth;
};
gridObj.Children.Add(size_Right);
Thumb size_Bottom = new()
{
Height = 3,
VerticalAlignment = VerticalAlignment.Bottom,
Cursor = Cursors.SizeNS,
Opacity = 0,
};
size_Bottom.DragDelta += (sender, e) =>
{
var thumb = (Thumb)sender;
var window = ((Grid)thumb.Parent).Parent as Window;
newHeight = window!.Height + e.VerticalChange;
window.Height = newHeight < minHeight ? minHeight : newHeight;
};
gridObj.Children.Add(size_Bottom);
Thumb size_Nwse = new()
{
Width = 3,
Height = 3,
HorizontalAlignment = HorizontalAlignment.Right,
VerticalAlignment = VerticalAlignment.Bottom,
Cursor = Cursors.SizeNWSE,
Opacity = 0,
};
size_Nwse.DragDelta += (sender, e) =>
{
var thumb = (Thumb)sender;
var window = ((Grid)thumb.Parent).Parent as Window;
newWidth = window!.Width + e.HorizontalChange;
newHeight = window!.Height + e.VerticalChange;
window.Width = newWidth < minWidth ? minWidth : newWidth;
window.Height = newHeight < minHeight ? minHeight : newHeight;
};
gridObj.Children.Add(size_Nwse);
}
}
/// <summary>
/// 移动窗体
/// </summary>
/// <param name="windowObj">窗体</param>
/// <param name="element">有效组件</param>
public static void DragMove(Window windowObj, FrameworkElement element)
{
element.PreviewMouseDown += (s, e) =>
{
if (isMove && e.LeftButton == MouseButtonState.Pressed)
{
windowObj.DragMove();
}
};
}
}
}
使用中：
程序代码：
using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Interop;
using System.Windows.Media;
namespace P4
{
public partial class MainWindow : Window
{
protected override void OnSourceInitialized(EventArgs e) // 禁用硬件加速，防止改变窗口大小时候窗口闪烁
{
if (PresentationSource.FromVisual(this) is HwndSource hwndSource)
= RenderMode.SoftwareOnly;
base.OnSourceInitialized(e);
}
private ChildWindow? childWindow;
public MainWindow()
{
InitializeComponent();
Canvas box = new() // 拖动的块
{
Background = Brushes.Green,
Margin = new Thickness(0,0,0,0),
};
Main_Grid.Children.Add(box);
WindowTemplate.Template.Pattern(this, Main_Grid, 1); // 窗口grid的名字为Main_Grid，前台<Grid x:Name="Main_Grid">
WindowTemplate.Template.DragMove(this, box);// 按住块，拖动窗口
Loaded += MainWindow_Loaded; // 嵌入一个窗口，这里省事，新建一个wpf的窗口
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
childWindow = new ChildWindow(); // 要嵌入的WPF窗口（例如ChildWindow）
childWindow.Show();
var childWindowHandle = new WindowInteropHelper(childWindow).EnsureHandle();
SetParent(childWindowHandle, new WindowInteropHelper(this).Handle);
}
[DllImport("user32.dll")]
private static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);
}
public class ChildWindow : Window
{
public ChildWindow()
{
// 设置窗口的样式和内容
Title = "Child Window";
Width = 400;
Height = 300;
Content = new TextBlock { Text = "This is a child window." };
}
}
}
匆忙临时写的，例子比较简单，如有错误自行修正。的，其他版本，去掉里面的“?”等等，自行修改。
