c# – 如何创建没有可以调整大小的边框的WPF窗口？

中有没有办法可以删除主窗口的边框,但允许调整窗口大小(没有夹点)？

我意识到有一种方法可以通过将调整大小模式设置为CanResizeWithGrip来完成此方案.但是,我希望能够将调整大小模式设置为CanResize.

我尝试设置以下内容：

ResizeMode="CanResize" 
WindowStyle="None"
AllowsTransparency="True"

但是,通过设置allowsTransparency,它将删除没有夹点时调整大小的功能.我有什么想法可以解决这个问题吗？

我还应该注意,无论如何我都不能将AllowTransparency设置为true,因为我在我的窗口中使用了winformshost控件,当AllowTransparency为true时,它不显示.

我知道这是一个老问题,但我只想为新人提出一个工作样本.

Xaml窗口：

<Window x:Class="CustomWindowDemo.DemoCustomWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:CustomWindowDemo"
        mc:Ignorable="d"
        Title="DemoCustomWindow" Height="300" Width="300" Background="{x:Null}" AllowsTransparency="True" WindowStyle="None">
    <Window.Resources>
        <Style x:Key="BorderThumb" TargetType="Thumb">
            <Setter Property="SnapsToDevicePixels" Value="true" />
            <Setter Property="OverridesDefaultStyle" Value="true" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Thumb">
                        <Rectangle MinWidth="4" MinHeight="4" StrokeThickness="0">
                            <Rectangle.Fill>
                                <SolidColorBrush Color="{DynamicResource {x:Static SystemColors.HighlightColorKey}}" Opacity="0.05"/>
                            </Rectangle.Fill>
                        </Rectangle>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>
    <Border BorderBrush="#55FFFFFF" BorderThickness="1" CornerRadius="5">
        <Grid>
            <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition/>
                    <RowDefinition Height="Auto"/>
                </Grid.RowDefinitions>
            <Border MouseMove="Header_MouseMove" DockPanel.Dock="Top" Height="32"  Grid.Row="1" Grid.Column="1">
                    <Border.Background>
                        <LinearGradientBrush StartPoint="0,0" EndPoint="0,3">
                            <GradientStop Color="#3BB2EA" Offset="0" />
                            <GradientStop Color="#EFF7FA" Offset="0.3" />
                        </LinearGradientBrush>
                    </Border.Background>
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>
                        <TextBlock VerticalAlignment="Center" HorizontalAlignment="Left" Margin="10,0,0,0" Text="{Binding Path=Title, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Window}}}"/>
                        <Button x:Name="btn_Minimize" Background="{x:Null}" BorderBrush="{x:Null}" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0" Click="btn_Minimize_Click" Grid.Column="1">
                            <Image Source="Resources/Ahmadhania-Spherical-Minimize.ico"/>
                        </Button>
                        <Button x:Name="btn_Maximize" Background="{x:Null}" BorderBrush="{x:Null}" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0" Grid.Column="2" Click="btn_Maximize_Click">
                            <Image Source="Resources/1412181205_61002.ico"/>
                        </Button>
                        <Button x:Name="btn_Close" Background="{x:Null}" BorderBrush="{x:Null}" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0" Grid.Column="3" Click="btn_Close_Click">
                            <Image Source="Resources/Ahmadhania-Spherical-Close(1).ico"/>
                        </Button>
                    </Grid>
                </Border>
            <Thumb x:Name="ThumbBottom" DragDelta="ThumbBottom_DragDelta" HorizontalAlignment="Stretch" Cursor="SizeNS" Grid.Column="0" Background="{x:Null}"  Margin="3,0" Grid.ColumnSpan="3" Grid.Row="3" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
            <Thumb x:Name="ThumbTop" DragDelta="ThumbTop_DragDelta" HorizontalAlignment="Stretch" Cursor="SizeNS" Grid.Column="0" Background="{x:Null}"  Margin="3,0" Grid.ColumnSpan="3" Height="4" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
            <Thumb x:Name="ThumbBottomRightCorner" DragDelta="ThumbBottomRightCorner_DragDelta" HorizontalAlignment="Right" Cursor="SizeNWSE" Grid.Row="3" Grid.Column="3" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
            <Thumb x:Name="ThumbTopRightCorner" DragDelta="ThumbTopRightCorner_DragDelta" HorizontalAlignment="Right" Cursor="SizeNESW" Grid.Row="0" Grid.Column="2" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
            <Thumb x:Name="ThumbTopLeftCorner" DragDelta="ThumbTopLeftCorner_DragDelta" HorizontalAlignment="Left" Cursor="SizeNWSE" Grid.Row="0" Grid.Column="0" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}" />
            <Thumb x:Name="ThumbBottomLeftCorner" DragDelta="ThumbBottomLeftCorner_DragDelta" HorizontalAlignment="Left" Cursor="SizeNESW" Grid.Row="3" Grid.Column="0" Background="{x:Null}" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}" />
            <Thumb x:Name="ThumbRight" DragDelta="ThumbRight_DragDelta" Cursor="SizeWE" Grid.Column="2" Grid.RowSpan="4" Background="{x:Null}"  Margin="0,3" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
            <Thumb x:Name="ThumbLeft" DragDelta="ThumbLeft_DragDelta" Cursor="SizeWE" Grid.Column="0" Grid.RowSpan="4" HorizontalContentAlignment="Right" Background="{x:Null}" Margin="0,3" Style="{Binding Mode=OneWay, Source={StaticResource BorderThumb}}"/>
            <Grid x:Name="Grid_Content" Background="#EFF7FA" Grid.Row="2" Grid.Column="1">

            </Grid>
        </Grid>
    </Border>
</Window>

C#代码背后：

using System.Windows.Interop;
using winforms = System.Windows.Forms;

namespace CustomWindowDemo
{
    /// <summary>
    /// Interaction logic for DemoCustomWindow.xaml
    /// </summary>
    public partial class DemoCustomWindow : Window
    {
        bool Maximized = false;
        int NormalWidth = 0;
        int NormalHeight = 0;
        int NormalX = 0;
        int NormalY = 0;

        public DemoCustomWindow()
        {
            InitializeComponent();
        }

        #region Header & Resize
        void Header_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
        {
            if (e.LeftButton == System.Windows.Input.MouseButtonState.Pressed)
                this.DragMove();
        }

        void ThumbBottomRightCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Width + e.HorizontalChange > 10)
                this.Width += e.HorizontalChange;
            if (this.Height + e.VerticalChange > 10)
                this.Height += e.VerticalChange;
        }
        void ThumbTopRightCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Width + e.HorizontalChange > 10)
                this.Width += e.HorizontalChange;
            if (this.Top + e.VerticalChange > 10)
            {
                this.Top += e.VerticalChange;
                this.Height -= e.VerticalChange;
            }
        }
        void ThumbTopLeftCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Left + e.HorizontalChange > 10)
            {
                this.Left += e.HorizontalChange;
                this.Width -= e.HorizontalChange;
            }
            if (this.Top + e.VerticalChange > 10)
            {
                this.Top += e.VerticalChange;
                this.Height -= e.VerticalChange;
            }
        }
        void ThumbBottomLeftCorner_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Left + e.HorizontalChange > 10)
            {
                this.Left += e.HorizontalChange;
                this.Width -= e.HorizontalChange;
            }
            if (this.Height + e.VerticalChange > 10)
                this.Height += e.VerticalChange;
        }
        void ThumbRight_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Width + e.HorizontalChange > 10)
                this.Width += e.HorizontalChange;
        }
        void ThumbLeft_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Left + e.HorizontalChange > 10)
            {
                this.Left += e.HorizontalChange;
                this.Width -= e.HorizontalChange;
            }
        }
        void ThumbBottom_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Height + e.VerticalChange > 10)
                this.Height += e.VerticalChange;
        }
        void ThumbTop_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            if (this.Top + e.VerticalChange > 10)
            {
                this.Top += e.VerticalChange;
                this.Height -= e.VerticalChange;
            }
        }

        void btn_Minimize_Click(object sender, RoutedEventArgs e)
        {
            WindowState = WindowState.Minimized;
        }
        void btn_Maximize_Click(object sender, RoutedEventArgs e)
        {
            if (Maximized == true)
            {
                this.Width = NormalWidth;
                this.Height = NormalHeight;
                this.Left = NormalX;
                this.Top = NormalY;
                Maximized = false;
                Thumbs();
            }
            else
            {
                NormalX = (int)this.Left;
                NormalY = (int)this.Top;
                NormalHeight = (int)this.Height;
                NormalWidth = (int)this.Width;
                this.Left = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Left;
                this.Top = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Top;
                this.Width = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Width;
                this.Height = winforms.Screen.FromHandle(new WindowInteropHelper(this).Handle).WorkingArea.Height;
                Maximized = true;
                Thumbs();
            }
        }
        void btn_Close_Click(object sender, RoutedEventArgs e)
        {
            Close();
        }
        void Thumbs()
        {
            if (Maximized == true)
            {
                ThumbBottom.Visibility = Visibility.Collapsed;
                ThumbLeft.Visibility = Visibility.Collapsed;
                ThumbTop.Visibility = Visibility.Collapsed;
                ThumbRight.Visibility = Visibility.Collapsed;
                ThumbTopLeftCorner.Visibility = Visibility.Collapsed;
                ThumbTopRightCorner.Visibility = Visibility.Collapsed;
                ThumbBottomLeftCorner.Visibility = Visibility.Collapsed;
                ThumbBottomRightCorner.Visibility = Visibility.Collapsed;
            }
            else
            {
                ThumbBottom.Visibility = Visibility.Visible;
                ThumbLeft.Visibility = Visibility.Visible;
                ThumbTop.Visibility = Visibility.Visible;
                ThumbRight.Visibility = Visibility.Visible;
                ThumbTopLeftCorner.Visibility = Visibility.Visible;
                ThumbTopRightCorner.Visibility = Visibility.Visible;
                ThumbBottomLeftCorner.Visibility = Visibility.Visible;
                ThumbBottomRightCorner.Visibility = Visibility.Visible;
            }
        }
        #endregion
    }
}